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Engineering services Businesses in Illinois (SIC Code: 8711)

Search Engineering services businesses in Illinois below and click on on a business name to see details.
20/10 Engineering Group, LLC Elk Grove Village, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-427-2010
Fax: 847-427-2010
A Star Electric Company Elk Grove Village, Illinois (Cook County)
Transformers and transmission equipment (SIC Code:506301)
Phone: 847-439-4122
Fax: 847-439-4122
Aaic Inc Collinsville, Illinois (Madison County)
Architectural engineering (SIC Code:871201)
Phone: 618-345-1270
Fax: 618-345-1270
Abna of Illinois Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 773-881-4788
Fax: 773-881-4788
Accord Enterprises Inc Westchester, Illinois (Cook County)
Placement agencies (SIC Code:736101)
Phone: 708-345-7900
Fax: 708-345-7900
Accurate Group, Inc. Lincolnshire, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-613-1100
Fax: 847-613-1100
Ace and Acme Consulting Evanston, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-864-6692
Fax: 847-864-6692
Advance Consulting Group Inter Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-357-1840
Fax: 312-357-1840
Advanced Cad/CAM Service Corporation Peoria, Illinois (Peoria County)
Engineering services (SIC Code:871199)
Phone: 309-740-7230
Fax: 309-740-7230
Advanced Engineering Solutions, Inc. Minooka, Illinois (Grundy County)
Construction and civil engineering (SIC Code:871104)
Phone: 815-467-5540
Fax: 815-467-5540
Advanced Joining Concepts Inc Elk Grove Village, Illinois (Cook County)
Welding apparatus (SIC Code:354899)
Phone: 847-228-6548
Fax: 847-228-6548
Advancement Inc Gurnee, Illinois ( County)
Engineering services (SIC Code:871199)
Phone:
Fax:
Aecom Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-373-7700
Fax: 312-373-7700
Aecom Technical Services, Inc. Chicago, Illinois (Cook County)
Business consulting (SIC Code:874899)
Phone: 312-777-5500
Fax: 312-777-5500
Aeromotive Corporation Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 773-588-2905
Fax: 773-588-2905
Affiliated Engineers, Inc. Champaign, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-363-3894
Fax: 217-363-3894
Affiliated Engineers, Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-212-6402
Fax: 312-212-6402
Aim Mail Centers Pe Edwardsville, Illinois (Madison County)
Engineering services (SIC Code:871199)
Phone: 618-655-1601
Fax: 618-655-1601
Al-Ro/Aim, Inc. Round Lake, Illinois (Lake County)
Engineering services (SIC Code:871199)
Phone: 847-201-1808
Fax: 847-201-1808
Alcatel-Lucent USA Inc. Naperville, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone:
Fax:
Alfred Benesch & Company Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-565-0450
Fax: 312-565-0450
Alion Science and Technology Corporation Warrenville, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-393-1215
Fax: 630-393-1215
Allan R Kishpaugh Palos Heights, Illinois (Cook County)
Industrial engineers (SIC Code:871102)
Phone: 708-371-3674
Fax: 708-371-3674
Allen Engineering Corporation Decatur, Illinois (Macon County)
Engineering services (SIC Code:871199)
Phone: 217-428-0566
Fax: 217-428-0566
Allied Engineering, LLC Libertyville, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-271-9513
Fax: 847-271-9513
Alstom Power Inc. Warrenville, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-393-1000
Fax: 630-393-1000
Alta Engineering Limited Elk Grove Village, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-357-1007
Fax: 847-357-1007
Alternative Power Generation LLC Roseville, Illinois (Warren County)
Engineering services (SIC Code:871199)
Phone: 309-774-4181
Fax: 309-774-4181
Altran Solutions Corp. Warrenville, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-393-4288
Fax: 630-393-4288
Altronics Inc Schaumburg, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-923-0002
Fax: 847-923-0002
Alvord, Burdick & Howson, LLC Chicago, Illinois ( County)
Engineering services (SIC Code:871199)
Phone:
Fax:
Ambitech Engineering Corp Downers Grove, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-963-5800
Fax: 630-963-5800
Ambitech Engineering Corporation Downers Grove, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-241-3891
Fax: 630-241-3891
Amcec Inc Lisle, Illinois (Du Page County)
Sanitary engineers (SIC Code:871101)
Phone: 630-577-0400
Fax: 630-577-0400
Amer Consulting Engineers Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 773-314-1200
Fax: 773-314-1200
Ameresco Select, Inc. Oak Brook, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-203-2600
Fax: 630-203-2600
American Surveying & Engineering, P.C. Chicago, Illinois (Cook County)
Surveying Services (SIC Code:871300)
Phone: 312-277-2000
Fax: 312-277-2000
Amsco Engineering Inc Downers Grove, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-515-1555
Fax: 630-515-1555
Andersen & Fiene Ltd Glen Ellyn, Illinois (Du Page County)
Construction and civil engineering (SIC Code:871104)
Phone: 630-545-9200
Fax: 630-545-9200
Apex Consulting Engineers, L.L.C. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-977-0660
Fax: 312-977-0660
Applied Energy Services Corp Buffalo Grove, Illinois (Lake County)
Engineering services (SIC Code:871199)
Phone: 847-537-1919
Fax: 847-537-1919
Applied Engineering Services Mc Henry, Illinois (McHenry County)
Engineering Services (SIC Code:871100)
Phone: 815-578-0200
Fax: 815-578-0200
Applied Mechanical Technology LLC Momence, Illinois (Kankakee County)
Motors And Generators (SIC Code:362100)
Phone: 815-472-2700
Fax: 815-472-2700
Applied Pavement Technology Plainfield, Illinois (Will County)
Engineering services (SIC Code:871199)
Phone: 815-609-5250
Fax: 815-609-5250
Applied Pavement Technology, Inc Urbana, Illinois (Champaign County)
Construction and civil engineering (SIC Code:871104)
Phone: 217-398-3977
Fax: 217-398-3977
Applied Research Associates, Inc. Champaign, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-356-4500
Fax: 217-356-4500
Applied Technologies, Inc Lake Villa, Illinois (Lake County)
Engineering services (SIC Code:871199)
Phone: 847-265-7325
Fax: 847-265-7325
APS Engineering, LLC Carbondale, Illinois (Jackson County)
Engineering services (SIC Code:871199)
Phone: 618-549-9836
Fax: 618-549-9836
Aqe Group Ltd Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 773-685-0400
Fax: 773-685-0400
Arcadis U.S., Inc. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-263-6703
Fax: 312-263-6703
Arcadis U.S., Inc. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-332-4937
Fax: 312-332-4937
Architechnics, Inc Quincy, Illinois (Adams County)
Architectural Services (SIC Code:871200)
Phone: 217-222-0554
Fax: 217-222-0554
Ardmore Associates, L.lC. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-795-1400
Fax: 312-795-1400
Aria Corporation Libertyville, Illinois (Lake County)
Engineering services (SIC Code:871199)
Phone: 847-918-9329
Fax: 847-918-9329
ARINC Incorporated Fairview Heights, Illinois (Saint Clair County)
Engineering Services (SIC Code:871100)
Phone: 618-624-0316
Fax: 618-624-0316
Armstrong Aerospace, Inc. Elmhurst, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-782-6400
Fax: 630-782-6400
Armstrong Engineering Inc Buffalo Grove, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-215-7757
Fax: 847-215-7757
Arnold Lundgren and Associates, P.C. Rockford, Illinois (Winnebago County)
Construction and civil engineering (SIC Code:871104)
Phone: 815-968-8881
Fax: 815-968-8881
Arrow Engineering, Inc. Rockford, Illinois (Winnebago County)
Special dies and tools (SIC Code:354401)
Phone: 815-397-0862
Fax: 815-397-0862
Artech Engineering, Inc. Lemont, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 630-910-1870
Fax: 630-910-1870
Artisan Consulting Engineers, LLC Rockford, Illinois (Winnebago County)
Engineering Services (SIC Code:871100)
Phone: 815-519-9645
Fax: 815-519-9645
Asaturian Eaton and Associates PC Carbondale, Illinois (Jackson County)
Construction and civil engineering (SIC Code:871104)
Phone: 618-529-3414
Fax: 618-529-3414
Asdg LLC O Fallon, Illinois (Saint Clair County)
Engineering Services (SIC Code:871100)
Phone: 618-628-0887
Fax: 618-628-0887
Associated Design Inc Palos Hills, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 708-974-9100
Fax: 708-974-9100
Associated Professionals Inc Nashville, Illinois (Washington County)
Surveying Services (SIC Code:871300)
Phone: 618-478-9000
Fax: 618-478-9000
Atc Group Services Inc Lombard, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-916-7272
Fax: 630-916-7272
Austin Group, LLC Quincy, Illinois (Adams County)
Industrial engineers (SIC Code:871102)
Phone: 217-224-9870
Fax: 217-224-9870
Automated Systems, Inc. Lake Bluff, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-735-8310
Fax: 847-735-8310
Automation Horizons Inc Des Plaines, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-827-6262
Fax: 847-827-6262
Automation Systems, Inc Franklin Park, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-671-9515
Fax: 847-671-9515
Aviation Management Consulting, Inc. Rockford, Illinois (Winnebago County)
Engineering services (SIC Code:871199)
Phone: 815-633-1684
Fax: 815-633-1684
Axis Inc Peoria, Illinois (Peoria County)
Computer Integrated Systems Design (SIC Code:737300)
Phone:
Fax:
Axis Inc Peoria, Illinois (Peoria County)
Computer Integrated Systems Design (SIC Code:737300)
Phone: 309-691-3988
Fax: 309-691-3988
B & J Computers Murphysboro, Illinois (Jackson County)
Computer And Computer Software Stores (SIC Code:573400)
Phone: 618-687-4459
Fax: 618-687-4459
B Miller Engineering Deerfield, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-948-7746
Fax: 847-948-7746
Bainbridge, Gee, Milanski & Associates Inc Decatur, Illinois (Macon County)
Engineering services (SIC Code:871199)
Phone: 217-423-8600
Fax: 217-423-8600
Ballard Companies, Inc. Rockford, Illinois (Winnebago County)
Electrical Work (SIC Code:173100)
Phone: 815-229-1800
Fax: 815-229-1800
Balsamo Olson Lewis Ltd Villa Park, Illinois (Du Page County)
Construction and civil engineering (SIC Code:871104)
Phone: 630-629-9800
Fax: 630-629-9800
Barr Systems Inc Riverside, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 708-442-0099
Fax: 708-442-0099
Barrett Bowman & Associates Inc Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-228-0100
Fax: 312-228-0100
Bascor Environmental, Inc Mount Prospect, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-577-1980
Fax: 847-577-1980
Base Point Inc. Marengo, Illinois (McHenry County)
Engineering Services (SIC Code:871100)
Phone: 815-572-4569
Fax: 815-572-4569
Basil Associates Inc Winnetka, Illinois (Cook County)
Architectural Services (SIC Code:871200)
Phone: 847-441-9600
Fax: 847-441-9600
Baxter & Woodman, Inc. Crystal Lake, Illinois (McHenry County)
Engineering services (SIC Code:871199)
Phone: 815-459-1260
Fax: 815-459-1260
Baxter & Woodman, Inc. Mokena, Illinois (Will County)
Engineering services (SIC Code:871199)
Phone: 708-478-2090
Fax: 708-478-2090
Baxter & Woodman, Inc. Dekalb, Illinois (De Kalb County)
Engineering services (SIC Code:871199)
Phone: 815-787-3111
Fax: 815-787-3111
BEK Engineering Group, LLC West Frankfort, Illinois (Franklin County)
Engineering Services (SIC Code:871100)
Phone: 618-579-6347
Fax: 618-579-6347
Belcan Corporation Downers Grove, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-786-9900
Fax: 630-786-9900
Belcan Corporation Peoria, Illinois (Peoria County)
Engineering services (SIC Code:871199)
Phone: 309-674-4300
Fax: 309-674-4300
Belli & Belli Architects and Engineers Inc Wheeling, Illinois (Cook County)
Architectural Services (SIC Code:871200)
Phone: 847-520-1700
Fax: 847-520-1700
Benton & Associates, Inc Jacksonville, Illinois (Morgan County)
Engineering services (SIC Code:871199)
Phone: 217-245-4146
Fax: 217-245-4146
Berns Clancy & Associates PC Urbana, Illinois (Champaign County)
Engineering services (SIC Code:871199)
Phone: 217-384-1144
Fax: 217-384-1144
Bigmachines, Inc. Deerfield, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-572-0300
Fax: 847-572-0300
Biomedical Acoustics Rese Evanston, Illinois (Cook County)
Acoustical and insulation work (SIC Code:174202)
Phone: 847-332-1044
Fax: 847-332-1044
Biostrategies Group Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-482-8292
Fax: 312-482-8292
Blank, Wesselink, Cook & Associates, Inc Decatur, Illinois (Macon County)
Engineering services (SIC Code:871199)
Phone: 217-428-0973
Fax: 217-428-0973
Bleck Engineering Co, Inc Lake Forest, Illinois (Lake County)
Construction and civil engineering (SIC Code:871104)
Phone: 847-295-5200
Fax: 847-295-5200
Bodycote Taussig, Inc. Skokie, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-676-2100
Fax: 847-676-2100
Boiler Inspection Services Company Wheaton, Illinois (Du Page County)
Industrial engineers (SIC Code:871102)
Phone: 630-510-3223
Fax: 630-510-3223
Boyer & Associates Lombard, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-627-3204
Fax: 630-627-3204
Bradford Settlement Co Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-781-9340
Fax: 312-781-9340
Brian Berg & Associates Ltd Schaumburg, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-352-4500
Fax: 847-352-4500
Brighton Engineering Company Arlington Heights, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-640-0840
Fax: 847-640-0840
Bromenn Healthcare Bloomington, Illinois (McLean County)
Engineering Services (SIC Code:871100)
Phone: 309-454-0755
Fax: 309-454-0755
Browning Engineering New Lenox, Illinois (Will County)
Engineering Services (SIC Code:871100)
Phone: 815-463-1069
Fax: 815-463-1069
Brp US Inc. Waukegan, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-689-6000
Fax: 847-689-6000
Bruner Cooper & Zuck Inc Galesburg, Illinois (Knox County)
Engineering services (SIC Code:871199)
Phone: 309-343-9282
Fax: 309-343-9282
Brust Consulting Incorporated Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 773-486-0601
Fax: 773-486-0601
Building Consultants Collaborative, Ltd. Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-669-0609
Fax: 312-669-0609
Burns & McDonnell Engineering Company, Inc. Downers Grove, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-724-3200
Fax: 630-724-3200
Burns & McDonnell, Inc. O Fallon, Illinois (Saint Clair County)
Engineering services (SIC Code:871199)
Phone: 618-632-0354
Fax: 618-632-0354
Butler Technical Group Decatur, Illinois (Macon County)
Engineering Services (SIC Code:871100)
Phone: 217-876-0633
Fax: 217-876-0633
C A E Services Corporation Batavia, Illinois (Kane County)
Engineering Services (SIC Code:871100)
Phone: 630-761-9898
Fax: 630-761-9898
C E S Inc Belvidere, Illinois (Boone County)
Construction and civil engineering (SIC Code:871104)
Phone: 815-547-8435
Fax: 815-547-8435
C. P. Environmental, Inc. Romeoville, Illinois (Will County)
Industrial equipment services (SIC Code:769905)
Phone: 630-759-8866
Fax: 630-759-8866
C.E. Anderson & Associates, P.C. Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-750-1701
Fax: 312-750-1701
C5t Corporation Scott Air Force Base, Illinois (Saint Clair County)
Management Consulting Services (SIC Code:874200)
Phone: 618-624-9258
Fax: 618-624-9258
Cable Tech Design Burr Ridge, Illinois ( County)
Engineering Services (SIC Code:871100)
Phone:
Fax:
Cadworks Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-596-5325
Fax: 312-596-5325
Camber Corp Belleville, Illinois (Saint Clair County)
Engineering services (SIC Code:871199)
Phone: 618-234-3400
Fax: 618-234-3400
Camiros, Ltd. Chicago, Illinois (Cook County)
Urban planning and consulting services (SIC Code:874802)
Phone: 312-922-9211
Fax: 312-922-9211
Campell & Associates Consulting Engineers, Inc. Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-202-0082
Fax: 312-202-0082
Carlson Environmental Inc Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-346-2140
Fax: 312-346-2140
Carroll Engineering Associates, P C Belvidere, Illinois (Boone County)
Construction and civil engineering (SIC Code:871104)
Phone: 815-547-3406
Fax: 815-547-3406
Cascade Controls, Inc. Tinley Park, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 708-802-6000
Fax: 708-802-6000
Caterpillar Inc. Mossville, Illinois (Peoria County)
Engineering services (SIC Code:871199)
Phone: 309-675-1000
Fax: 309-675-1000
Ce Design, Ltd. Rolling Meadows, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 847-392-3570
Fax: 847-392-3570
Ceco Abatement Systems Inc Downers Grove, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-493-0624
Fax: 630-493-0624
Cemcon Ltd Aurora, Illinois (Du Page County)
Construction and civil engineering (SIC Code:871104)
Phone: 630-862-2100
Fax: 630-862-2100
Centrance, Inc. Morton Grove, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-967-1661
Fax: 847-967-1661
Cesaroni Design Associates Inc Glenview, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-724-8840
Fax: 847-724-8840
Cgmp Consulting Inc. Chicago, Illinois (Cook County)
Petroleum, mining, and chemical engineers (SIC Code:871103)
Phone: 312-420-7682
Fax: 312-420-7682
Ch2m Hill, Inc. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 773-693-3809
Fax: 773-693-3809
Chamlin & Associates Inc Peru, Illinois (La Salle County)
Construction and civil engineering (SIC Code:871104)
Phone: 815-223-3344
Fax: 815-223-3344
Chamlin & Associates Inc Morris, Illinois (Grundy County)
Engineering Services (SIC Code:871100)
Phone: 815-942-1402
Fax: 815-942-1402
Champaign Aerospace Systems Champaign, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-607-0647
Fax: 217-607-0647
Chastain Homer L & Assoc L.L.P. Decatur, Illinois (Macon County)
Engineering services (SIC Code:871199)
Phone: 217-422-8544
Fax: 217-422-8544
Chastain Homer L & Assoc L.L.P. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 773-714-0050
Fax: 773-714-0050
Chatfield Electric Inc Northbrook, Illinois (Cook County)
Electrical work (SIC Code:173199)
Phone: 847-509-1660
Fax: 847-509-1660
Chicago Radio Engineers, Inc Evanston, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-328-0775
Fax: 847-328-0775
Chicago Safety Institute Chicago, Illinois (Cook County)
Business consulting (SIC Code:874899)
Phone: 773-538-3333
Fax: 773-538-3333
Chicago Tricorbraun Design & Engineering Elmhurst, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-483-2126
Fax: 630-483-2126
Christian-Roge & Associates, Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-372-2023
Fax: 312-372-2023
Christopher B Burke Engineering Ltd Des Plaines, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 847-823-0500
Fax: 847-823-0500
Ciorba Group, Inc Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 773-775-4009
Fax: 773-775-4009
Civiltech Engineering, Inc. Itasca, Illinois (Du Page County)
Construction and civil engineering (SIC Code:871104)
Phone: 630-773-3900
Fax: 630-773-3900
Clark Dietz, Inc. Champaign, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-373-8900
Fax: 217-373-8900
Clean World Engineering, Ltd Wheaton, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-260-0200
Fax: 630-260-0200
Climco Coils Co Morrison, Illinois (Whiteside County)
Engineering Services (SIC Code:871100)
Phone: 815-772-3717
Fax: 815-772-3717
CM Lavoie & Associate Inc Plainfield, Illinois (Will County)
Construction and civil engineering (SIC Code:871104)
Phone: 630-434-2780
Fax: 630-434-2780
Coating Engineers Des Plaines, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-795-9063
Fax: 847-795-9063
Cochran and Wilken, Inc Springfield, Illinois (Sangamon County)
Engineering services (SIC Code:871199)
Phone: 217-585-8300
Fax: 217-585-8300
Collins Engineers, Incorporated Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-704-9300
Fax: 312-704-9300
Communications Engineers Inc Springfield, Illinois (Sangamon County)
Engineering Services (SIC Code:871100)
Phone: 217-529-9362
Fax: 217-529-9362
Compass Systems, Inc. Champaign, Illinois (Champaign County)
Engineering services (SIC Code:871199)
Phone: 217-552-2478
Fax: 217-552-2478
Computational Tools Gurnee, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-599-1203
Fax: 847-599-1203
Computer Information Systems, Inc Skokie, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-673-7800
Fax: 847-673-7800
Computer Integrated Automation Inc Carol Stream, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-510-1480
Fax: 630-510-1480
Configure One, Inc. Oak Brook, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-368-9950
Fax: 630-368-9950
Consolidated Consulting Engineers Wheeling, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-215-0690
Fax: 847-215-0690
Construction Service Associates Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-364-9098
Fax: 312-364-9098
Construction-Cad Solutions, Incorporated Westmont, Illinois (Du Page County)
General Contractors-Single-Family Houses (SIC Code:152100)
Phone: 815-722-0457
Fax: 815-722-0457
Consulting Engineers Council of Illinois Springfield, Illinois (Sangamon County)
Professional organizations (SIC Code:862199)
Phone: 217-529-7430
Fax: 217-529-7430
Contech Systems Inc Palos Heights, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 708-361-4999
Fax: 708-361-4999
Continental Engineering Corp Oak Park, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 708-848-8200
Fax: 708-848-8200
Control Masters, Inc. Downers Grove, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-968-2390
Fax: 630-968-2390
Control Panels, Inc. Machesney Park, Illinois (Winnebago County)
Panel and distribution boards and other related apparatus (SIC Code:361302)
Phone: 815-654-6000
Fax: 815-654-6000
Conveyor Craft Inc Romeoville, Illinois (Will County)
Materials handling machinery (SIC Code:508408)
Phone: 630-769-1070
Fax: 630-769-1070
Coombebloxdorf PC Springfield, Illinois (Sangamon County)
Engineering services (SIC Code:871199)
Phone: 217-544-8477
Fax: 217-544-8477
Corbett Engineering, LLC Schaumburg, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-285-1852
Fax: 847-285-1852
Cornerstone Environmental Group, LLC Bolingbrook, Illinois (Will County)
Construction and civil engineering (SIC Code:871104)
Phone: 630-633-5520
Fax: 630-633-5520
Corrosion Services Inc East Dundee, Illinois (Kane County)
Engineering Services (SIC Code:871100)
Phone: 847-836-3000
Fax: 847-836-3000
Cosentini Associates Inc Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-670-1800
Fax: 312-670-1800
Cosmodog Ltd Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-440-0344
Fax: 312-440-0344
Cotter Consulting, Inc. Chicago, Illinois (Cook County)
Management services (SIC Code:874199)
Phone: 312-696-1200
Fax: 312-696-1200
Cowhey Gudmundson Leder, Ltd. Itasca, Illinois (Du Page County)
Construction and civil engineering (SIC Code:871104)
Phone: 630-250-9595
Fax: 630-250-9595
Craig Technical Consulting, Inc. Canton, Illinois (Fulton County)
Computer related consulting services (SIC Code:737902)
Phone: 309-647-8508
Fax: 309-647-8508
Crave Development Inc Elk Grove Village, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-434-1444
Fax: 847-434-1444
Crawford, Murphy & Tilly, Inc. Aurora, Illinois (Du Page County)
Construction and civil engineering (SIC Code:871104)
Phone: 630-820-1022
Fax: 630-820-1022
Crawford, Murphy & Tilly, Inc. Rockford, Illinois (Winnebago County)
Construction and civil engineering (SIC Code:871104)
Phone: 815-396-7708
Fax: 815-396-7708
Crawford, Murphy & Tilly, Inc. Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-855-2540
Fax: 312-855-2540
Crawford, Murphy & Tilly, Inc. Peoria, Illinois (Peoria County)
Construction and civil engineering (SIC Code:871104)
Phone: 309-637-1890
Fax: 309-637-1890
Crawford, Murphy & Tilly, Inc. Edwardsville, Illinois (Madison County)
Construction and civil engineering (SIC Code:871104)
Phone: 618-656-0470
Fax: 618-656-0470
Crawford, Murphy & Tilly, Inc. Aurora, Illinois (Du Page County)
Industrial and labor consulting services (SIC Code:874201)
Phone: 630-820-1022
Fax: 630-820-1022
Creative Electronics and Software, Inc. South Elgin, Illinois (Kane County)
Printed Circuit Boards (SIC Code:367200)
Phone: 847-695-0023
Fax: 847-695-0023
Creative Engineering Company Inc Glen Ellyn, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-942-8999
Fax: 630-942-8999
Cs 2 Elk Grove Village, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-981-1880
Fax: 847-981-1880
CT Engineering Corp Mount Prospect, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-670-1823
Fax: 847-670-1823
CT Mechanical, LLC Wood Dale, Illinois (Du Page County)
Heating and air conditioning contractors (SIC Code:171104)
Phone: 847-971-1130
Fax: 847-971-1130
CU Aerospace L.L.C. Champaign, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-333-8272
Fax: 217-333-8272
Cybernet System Management Inc Schaumburg, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-605-0080
Fax: 847-605-0080
D B Sterlin Consultants, Inc. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-857-1006
Fax: 312-857-1006
D L Markley & Associates Inc Peoria, Illinois (Peoria County)
Engineering services (SIC Code:871199)
Phone: 309-673-7511
Fax: 309-673-7511
D&D Internetworking, Inc Schaumburg, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-925-8134
Fax: 847-925-8134
Daily & Associates, Engineers, Inc Champaign, Illinois (Champaign County)
Engineering services (SIC Code:871199)
Phone: 217-352-4169
Fax: 217-352-4169
Daily & Associates, Engineers, Inc Peoria, Illinois (Peoria County)
Engineering services (SIC Code:871199)
Phone: 309-691-5300
Fax: 309-691-5300
Daley Inc. Machesney Park, Illinois (Winnebago County)
Engineering services (SIC Code:871199)
Phone: 815-316-8400
Fax: 815-316-8400
Daniel Creaney Co Northbrook, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 847-480-5757
Fax: 847-480-5757
Data Link Systems Inc Peoria, Illinois (Peoria County)
Engineering Services (SIC Code:871100)
Phone: 309-637-0888
Fax: 309-637-0888
Daxcon Engineering Peoria, Illinois (Peoria County)
Engineering services (SIC Code:871199)
Phone: 309-681-0797
Fax: 309-681-0797
Daxcon Engineering, Inc. Peoria, Illinois (Peoria County)
Engineering Services (SIC Code:871100)
Phone: 309-697-5975
Fax: 309-697-5975
DC Consulting Engineers Inc Elmhurst, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-834-0105
Fax: 630-834-0105
De Avila, Jose L & Associate Oak Park, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 708-383-3030
Fax: 708-383-3030
Dearborn Engineers & Constructors, Inc Bridgeview, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 708-430-7600
Fax: 708-430-7600
Delcan Corporation Schaumburg, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-925-0120
Fax: 847-925-0120
Delcross Technologies, LLC Champaign, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-363-3396
Fax: 217-363-3396
Delta Engineering Inc Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-377-7700
Fax: 312-377-7700
Design Consulting Engineers Chicago, Illinois (Cook County)
Architectural Services (SIC Code:871200)
Phone: 773-283-8500
Fax: 773-283-8500
Design Mill, Inc. Elizabeth, Illinois (Jo Daviess County)
Engineering Services (SIC Code:871100)
Phone: 815-858-3773
Fax: 815-858-3773
Design Systems, Inc. Morton, Illinois (Tazewell County)
Industrial engineers (SIC Code:871102)
Phone: 309-263-7706
Fax: 309-263-7706
Design Technology, Inc Westmont, Illinois (Du Page County)
Electrical energy measuring equipment (SIC Code:382503)
Phone: 630-920-1300
Fax: 630-920-1300
Desman, Inc. Chicago, Illinois (Cook County)
Architectural Services (SIC Code:871200)
Phone: 312-263-3139
Fax: 312-263-3139
Detloff Engineering Geneseo, Illinois (Henry County)
Engineering services (SIC Code:871199)
Phone: 309-944-5254
Fax: 309-944-5254
Dfm Consulting Inc Urbana, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-367-5865
Fax: 217-367-5865
Dickerson Engineering Inc Niles, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-966-0290
Fax: 847-966-0290
Digital Acoustics LLC Lake Bluff, Illinois (Lake County)
Engineering services (SIC Code:871199)
Phone: 847-604-9256
Fax: 847-604-9256
Digital Design Corporation Arlington Heights, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-359-3828
Fax: 847-359-3828
Dike-O-Seal, Incorporated Chicago, Illinois (Cook County)
Plastics hardware and building products (SIC Code:308903)
Phone: 773-254-3224
Fax: 773-254-3224
Diversified Services Network Inc. Naperville, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-983-9819
Fax: 630-983-9819
Dlz Illinois, Inc. Arlington Heights, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-640-0840
Fax: 847-640-0840
Doka USA Ltd Joliet, Illinois (Will County)
General construction machinery and equipment (SIC Code:508203)
Phone: 815-730-6700
Fax: 815-730-6700
Donald M Linos Winnetka, Illinois ( County)
Engineering services (SIC Code:871199)
Phone:
Fax:
Donohue & Associates Inc Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-236-9147
Fax: 312-236-9147
Dontech Industries, Inc. Gilberts, Illinois (Kane County)
Food Products Machinery (SIC Code:355600)
Phone: 847-428-8222
Fax: 847-428-8222
Drucker Zajdel Structural Engineers Naperville, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-305-5757
Fax: 630-305-5757
Dusable, Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-360-9300
Fax: 312-360-9300
Dynamic Engineers Inc Joliet, Illinois (Will County)
Engineering services (SIC Code:871199)
Phone: 815-577-1205
Fax: 815-577-1205
Dynamics Research Corporation Scott Air Force Base, Illinois (Saint Clair County)
Engineering Services (SIC Code:871100)
Phone: 618-744-9412
Fax: 618-744-9412
Dynasty Group, Inc. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-704-1970
Fax: 312-704-1970
E C C Controls of Illinois Inc Rolling Meadows, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-963-8822
Fax: 847-963-8822
E F K Moen LLC Fairview Heights, Illinois (Saint Clair County)
Construction and civil engineering (SIC Code:871104)
Phone: 618-206-4250
Fax: 618-206-4250
Ea Engineering, Science, and Technology, Inc. Deerfield, Illinois (Lake County)
Business consulting (SIC Code:874899)
Phone: 847-945-8010
Fax: 847-945-8010
Eads NA Defense Security and Systems Solutions, Inc. O Fallon, Illinois (Saint Clair County)
Engineering services (SIC Code:871199)
Phone: 618-206-4032
Fax: 618-206-4032
Ecothermics Corporation Peoria, Illinois (Peoria County)
Engineering Services (SIC Code:871100)
Phone: 217-621-2402
Fax: 217-621-2402
Edwards Engineering, Inc. Elk Grove Village, Illinois (Cook County)
Heating and air conditioning contractors (SIC Code:171104)
Phone: 847-364-8100
Fax: 847-364-8100
Eisenmann Corporation Crystal Lake, Illinois (McHenry County)
Engineering Services (SIC Code:871100)
Phone: 815-455-4100
Fax: 815-455-4100
Ejm Engineering, Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-922-1700
Fax: 312-922-1700
Electrical Engineering Consultants, P.C. Aurora, Illinois (Kane County)
Engineering services (SIC Code:871199)
Phone: 630-906-2864
Fax: 630-906-2864
Elemech, Inc. Aurora, Illinois (Kane County)
Engineering services (SIC Code:871199)
Phone: 630-499-7080
Fax: 630-499-7080
Elgin National Industries, Inc. Downers Grove, Illinois (Du Page County)
Mining Machinery And Equipment, Except Oil And Gas Field Machinery And Equipment (SIC Code:353200)
Phone: 630-434-7243
Fax: 630-434-7243
Empod Corporation Sycamore, Illinois (De Kalb County)
Marketing consulting services (SIC Code:874203)
Phone: 815-895-1098
Fax: 815-895-1098
En Engineering LLC Woodridge, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-353-4000
Fax: 630-353-4000
Enders Process Equipment Corp. Glen Ellyn, Illinois (Du Page County)
Instruments and control equipment (SIC Code:508407)
Phone: 630-469-3787
Fax: 630-469-3787
Enercon Ltd Evanston, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-328-3555
Fax: 847-328-3555
Energy Systems Group, LLC Itasca, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-773-7201
Fax: 630-773-7201
Energy Visuals, Inc. Champaign, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-398-8035
Fax: 217-398-8035
Engineered Product Services Inc Naperville, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-778-7773
Fax: 630-778-7773
Engineered Security and Sound, Inc. Gilberts, Illinois (Kane County)
Engineering services (SIC Code:871199)
Phone: 847-741-8850
Fax: 847-741-8850
Engineering Consultants Inc Joliet, Illinois (Will County)
Engineering Services (SIC Code:871100)
Phone: 815-729-0800
Fax: 815-729-0800
Engineering Consulting Services, Ltd. Buffalo Grove, Illinois (Lake County)
Engineering services (SIC Code:871199)
Phone: 847-279-0366
Fax: 847-279-0366
Engineering Enterprises, Inc. Sugar Grove, Illinois (Kane County)
Engineering services (SIC Code:871199)
Phone: 630-365-9350
Fax: 630-365-9350
Engineering Resource Associates, Inc. Warrenville, Illinois (Du Page County)
Construction and civil engineering (SIC Code:871104)
Phone: 630-393-3060
Fax: 630-393-3060
Engineering Services Group, Inc. Aurora, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-346-1806
Fax: 630-346-1806
Engineering Systems Inc. Aurora, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-851-4566
Fax: 630-851-4566
Environmental Compliance Inc Des Plaines, Illinois (Cook County)
Special industry machinery (SIC Code:355999)
Phone: 847-824-9505
Fax: 847-824-9505
Environmental Design International, Inc. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-345-1400
Fax: 312-345-1400
Environmental Leverage Inc. North Aurora, Illinois (Kane County)
Engineering Services (SIC Code:871100)
Phone: 630-906-9791
Fax: 630-906-9791
Environmental Services Inc Western Springs, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone:
Fax:
Environmental Systems Design, Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-372-1200
Fax: 312-372-1200
EPC International Inc Mount Prospect, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-952-8296
Fax: 847-952-8296
Epsilon Group Inc Highland Park, Illinois (Lake County)
Engineering services (SIC Code:871199)
Phone: 847-926-0017
Fax: 847-926-0017
Epsilon Lambda Electronics Corp. West Chicago, Illinois (Du Page County)
Electronic circuits (SIC Code:367901)
Phone: 630-293-7118
Fax: 630-293-7118
Epstein, A and Sons International Inc Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-454-9100
Fax: 312-454-9100
Equivus Inc Arlington Heights, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-956-3322
Fax: 847-956-3322
Eres International Inc Savoy, Illinois (Champaign County)
Engineering services (SIC Code:871199)
Phone: 217-356-5945
Fax: 217-356-5945
Eri Engineering & Research International Inc Savoy, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-356-5945
Fax: 217-356-5945
Erm-NA Holdings Corp. Vernon Hills, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone:
Fax:
Esca Consultants Inc Urbana, Illinois (Champaign County)
Management Consulting Services (SIC Code:874200)
Phone: 217-384-0505
Fax: 217-384-0505
Esi Consultants Ltd. Charleston, Illinois (Coles County)
Engineering Services (SIC Code:871100)
Phone: 217-348-1900
Fax: 217-348-1900
Espo Engineering Corporation Willowbrook, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-789-2525
Fax: 630-789-2525
Eta Engineers Inc Champaign, Illinois (Champaign County)
Engineering services (SIC Code:871199)
Phone: 217-355-5309
Fax: 217-355-5309
Everest Engineering Co Inc Wheaton, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-462-9797
Fax: 630-462-9797
Exponent, Inc. Wood Dale, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-274-3200
Fax: 630-274-3200
Faithful+gould, Inc. Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-655-8510
Fax: 312-655-8510
Farnsworth Group, Inc. Bloomington, Illinois (McLean County)
Engineering services (SIC Code:871199)
Phone: 309-663-8435
Fax: 309-663-8435
Farnsworth Group, Inc. Champaign, Illinois (Champaign County)
Engineering Services (SIC Code:871100)
Phone: 217-352-7408
Fax: 217-352-7408
Farnsworth Group, Inc. Effingham, Illinois (Effingham County)
Engineering Services (SIC Code:871100)
Phone: 217-342-5668
Fax: 217-342-5668
Farnsworth Group, Inc. Shorewood, Illinois (Will County)
Engineering services (SIC Code:871199)
Phone: 815-744-6940
Fax: 815-744-6940
Farnsworth Group, Inc. Peoria, Illinois (Peoria County)
Engineering Services (SIC Code:871100)
Phone: 309-689-9888
Fax: 309-689-9888
Farnsworth Group, Inc. Pontiac, Illinois (Livingston County)
Engineering Services (SIC Code:871100)
Phone: 815-844-5571
Fax: 815-844-5571
Fauske and Associates LLC Burr Ridge, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-323-8750
Fax: 630-323-8750
Fehr-Graham & Associates LLC Freeport, Illinois (Stephenson County)
Sanitary engineers (SIC Code:871101)
Phone: 815-235-7643
Fax: 815-235-7643
Fgm Architects Inc. Mount Vernon, Illinois (Jefferson County)
Architectural Services (SIC Code:871200)
Phone: 618-242-5620
Fax: 618-242-5620
Fgm Architects Inc. Oak Brook, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-574-8300
Fax: 630-574-8300
Fgm Architects Inc. Peoria, Illinois (Peoria County)
Engineering Services (SIC Code:871100)
Phone: 309-669-0012
Fax: 309-669-0012
Finishing Processes Ltd Park Forest, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 708-481-1260
Fax: 708-481-1260
Fisher & Partners Structural Engineering Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-573-1701
Fax: 312-573-1701
Fleming Gannett Inc Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-454-9494
Fax: 312-454-9494
Flucomp Enterprises, Inc. Oak Lawn, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 708-945-6372
Fax: 708-945-6372
Fluent Inc. Evanston, Illinois (Cook County)
Computer Programming Services (SIC Code:737100)
Phone: 847-491-0200
Fax: 847-491-0200
Fluid Tech Group, Inc Gillespie, Illinois (Macoupin County)
Engineering Services (SIC Code:871100)
Phone: 217-839-4426
Fax: 217-839-4426
Fluidclarity Ltd. Oak Park, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 708-383-3500
Fax: 708-383-3500
Fluidic Microcontrols, Inc. Savanna, Illinois (Carroll County)
Engineering Services (SIC Code:871100)
Phone: 815-262-4513
Fax: 815-262-4513
Footlik & Associates Evanston, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-441-5920
Fax: 847-441-5920
Foresight Services, Inc. Highland, Illinois (Madison County)
Construction and civil engineering (SIC Code:871104)
Phone: 618-654-8919
Fax: 618-654-8919
Foth Infrastructure & Environment, LLC Champaign, Illinois (Champaign County)
Industrial engineers (SIC Code:871102)
Phone: 217-352-4169
Fax: 217-352-4169
Foth Infrastructure & Environment, LLC Peoria, Illinois (Peoria County)
Industrial engineers (SIC Code:871102)
Phone: 309-691-5300
Fax: 309-691-5300
Foundation Engineering Inc Schaumburg, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-882-2450
Fax: 847-882-2450
Francis & Associates Paris, Illinois (Edgar County)
Engineering services (SIC Code:871199)
Phone: 217-465-5306
Fax: 217-465-5306
Freberg Communications Corporation Homewood, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 708-799-6253
Fax: 708-799-6253
Frontline Mold Technology Crystal Lake, Illinois (McHenry County)
Plastics processing (SIC Code:308906)
Phone: 815-459-9422
Fax: 815-459-9422
Fullerton Engineering Consultants, Inc Rosemont, Illinois ( County)
Engineering services (SIC Code:871199)
Phone:
Fax:
Fx Engineering Western Springs, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 630-655-7180
Fax: 630-655-7180
G T G Consultants, Inc Chicago, Illinois (Cook County)
Architectural Services (SIC Code:871200)
Phone: 312-202-0606
Fax: 312-202-0606
Gaspardo & Associates Inc Batavia, Illinois (Kane County)
Engineering Services (SIC Code:871100)
Phone: 630-761-8800
Fax: 630-761-8800
General Electric Company Oak Brook, Illinois (Du Page County)
Industrial engineers (SIC Code:871102)
Phone: 630-575-8333
Fax: 630-575-8333
General Electric Company Oakbrook Terrace, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-678-1279
Fax: 630-678-1279
General Electro Corporation Bensenville, Illinois (Du Page County)
Printed Circuit Boards (SIC Code:367200)
Phone: 630-595-8989
Fax: 630-595-8989
Genesis Automation, Inc. Saint Charles, Illinois (Kane County)
Engineering services (SIC Code:871199)
Phone: 630-587-0444
Fax: 630-587-0444
George Butler Associates, Inc. Lisle, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-955-9040
Fax: 630-955-9040
Geosyntec Consultants, Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-658-0500
Fax: 312-658-0500
Geotech Inc Joliet, Illinois (Will County)
Engineering services (SIC Code:871199)
Phone: 815-730-1010
Fax: 815-730-1010
Geotrack, Inc. Lake Forest, Illinois (Lake County)
Construction and civil engineering (SIC Code:871104)
Phone: 847-234-0185
Fax: 847-234-0185
Gerb Vibration Control Systems Inc Lisle, Illinois (Du Page County)
Precision springs (SIC Code:349501)
Phone: 630-724-1660
Fax: 630-724-1660
Gev Corp Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-580-2080
Fax: 312-580-2080
Gewalt-Hamilton Associates Inc Vernon Hills, Illinois (Lake County)
Construction and civil engineering (SIC Code:871104)
Phone: 847-478-9700
Fax: 847-478-9700
Ghafari Associates, L.L.C. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-984-2300
Fax: 312-984-2300
Ghetzler Aero-Power Corp Arlington Heights, Illinois ( County)
Electric motor and generator parts (SIC Code:362101)
Phone:
Fax:
Glenwood Systems, Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 773-743-7373
Fax: 773-743-7373
Global Design Inc Lansing, Illinois (Cook County)
Industrial engineers (SIC Code:871102)
Phone: 708-474-0131
Fax: 708-474-0131
Global Water Technology, Inc. Oakbrook Terrace, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-758-0061
Fax: 630-758-0061
Globetrotters Engineering Corporation Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-922-6400
Fax: 312-922-6400
Glycopep Chemicals, Inc Chicago, Illinois (Cook County)
Petroleum, mining, and chemical engineers (SIC Code:871103)
Phone: 312-563-1561
Fax: 312-563-1561
Gn Electronics Inc Machesney Park, Illinois (Winnebago County)
Engineering services (SIC Code:871199)
Phone: 815-637-8624
Fax: 815-637-8624
Goliath Solutions, LLC Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-914-9900
Fax: 847-914-9900
Graef-USA Inc Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 773-399-0112
Fax: 773-399-0112
Graef-USA Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-582-2000
Fax: 312-582-2000
Gray Peaks, Inc. Barrington, Illinois (Lake County)
Engineering services (SIC Code:871199)
Phone: 847-598-3750
Fax: 847-598-3750
Great Lakes Soil & Environmental Consultants Inc. Bolingbrook, Illinois (Will County)
Engineering Services (SIC Code:871100)
Phone: 630-754-8700
Fax: 630-754-8700
Greeley and Hansen LLC Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-578-2345
Fax: 312-578-2345
Greenberg, Farrow, Architecture Incorporated Arlington Heights, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-788-9200
Fax: 847-788-9200
Greene & Bradford of Springfield Inc Springfield, Illinois (Sangamon County)
Engineering services (SIC Code:871199)
Phone: 217-793-8844
Fax: 217-793-8844
Greengard Inc Lincolnshire, Illinois (Lake County)
Engineering services (SIC Code:871199)
Phone: 847-634-3883
Fax: 847-634-3883
Greensmith, Inc. Des Plaines, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-759-1360
Fax: 847-759-1360
Guarantee Electrical Company Granite City, Illinois (Madison County)
Electrical Work (SIC Code:173100)
Phone: 618-452-6122
Fax: 618-452-6122
Guardian Services Inc Frankfort, Illinois (Will County)
Engineering services (SIC Code:871199)
Phone: 815-469-4779
Fax: 815-469-4779
H W Lochner, Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-372-7346
Fax: 312-372-7346
H. H. Holmes Testing Laboratories, Inc. Wheeling, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-541-4040
Fax: 847-541-4040
Haeger Engineering, L.L.C. Schaumburg, Illinois (Cook County)
Surveying Services (SIC Code:871300)
Phone: 847-394-6600
Fax: 847-394-6600
Halco Design Service Naperville, Illinois (Will County)
Engineering services (SIC Code:871199)
Phone: 708-369-9452
Fax: 708-369-9452
Halvorson and Partners, P.C. Chicago, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 312-274-2400
Fax: 312-274-2400
Hampton, Lenzini & Renwick Inc Springfield, Illinois (Sangamon County)
Construction and civil engineering (SIC Code:871104)
Phone: 217-546-3400
Fax: 217-546-3400
Hampton, Lenzini & Renwick Inc Elgin, Illinois (Kane County)
Construction and civil engineering (SIC Code:871104)
Phone: 847-697-6700
Fax: 847-697-6700
Hanson Professional Services Rockford, Illinois (Winnebago County)
Engineering Services (SIC Code:871100)
Phone: 815-398-4600
Fax: 815-398-4600
Hanson Professional Services Inc. Springfield, Illinois (Sangamon County)
Engineering Services (SIC Code:871100)
Phone: 217-788-2450
Fax: 217-788-2450
Hanson Professional Services Inc. Oak Brook, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-990-3800
Fax: 630-990-3800
Hardy Systems Corporation Northbrook, Illinois (Cook County)
Materials handling machinery (SIC Code:508408)
Phone: 847-272-4400
Fax: 847-272-4400
Harry O Hefter Associates Inc Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-346-8131
Fax: 312-346-8131
Hawk Technology Ltd. Rock Island, Illinois (Rock Island County)
Industrial engineers (SIC Code:871102)
Phone: 309-787-6200
Fax: 309-787-6200
Hazard Engineering Inc Lake Zurich, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-726-0700
Fax: 847-726-0700
Hbk Engineering LLC Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-432-0076
Fax: 312-432-0076
Hbm Engineering Group, LLC Hillside, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 708-236-0900
Fax: 708-236-0900
Hdc Engineering Inc Champaign, Illinois (Champaign County)
Construction and civil engineering (SIC Code:871104)
Phone: 217-352-6976
Fax: 217-352-6976
HDR Engineering, Inc. Chicago, Illinois (Cook County)
Industry specialist consultants (SIC Code:874204)
Phone: 773-380-7900
Fax: 773-380-7900
Hegemony Inc Wheaton, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-690-5200
Fax: 630-690-5200
Heneghan and Associates, P.C. Columbia, Illinois (Monroe County)
Construction and civil engineering (SIC Code:871104)
Phone: 618-281-8133
Fax: 618-281-8133
Heneghan and Associates, P.C. Centralia, Illinois (Marion County)
Construction and civil engineering (SIC Code:871104)
Phone: 618-533-6525
Fax: 618-533-6525
Henneman Engineering Inc. Champaign, Illinois (Champaign County)
Engineering services (SIC Code:871199)
Phone: 217-359-1514
Fax: 217-359-1514
Henneman Engineering Inc. Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-379-5333
Fax: 312-379-5333
Henneman Raufeisen & Assoc Peoria, Illinois (Peoria County)
Engineering services (SIC Code:871199)
Phone: 309-672-7800
Fax: 309-672-7800
Henry, Meisenheimer & Gende Inc Carlyle, Illinois (Clinton County)
Construction and civil engineering (SIC Code:871104)
Phone: 618-594-3711
Fax: 618-594-3711
Herbst Lazar Bell Inc Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-454-1116
Fax: 312-454-1116
Heritage Environmental Services, LLC Lemont, Illinois (Cook County)
Hazardous waste collection and disposal (SIC Code:495301)
Phone: 630-739-1151
Fax: 630-739-1151
Hinkle Engineering Inc Darien, Illinois (Du Page County)
Industrial engineers (SIC Code:871102)
Phone: 630-515-8020
Fax: 630-515-8020
HMS Services Inc Lombard, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 630-926-6960
Fax: 630-926-6960
Hntb Corporation Chicago, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 312-930-9119
Fax: 312-930-9119
Hoelscher Engineering PC Fairview Heights, Illinois (Saint Clair County)
Engineering services (SIC Code:871199)
Phone: 618-624-8610
Fax: 618-624-8610
Hofmann Willett & Associates Sterling, Illinois (Whiteside County)
Engineering Services (SIC Code:871100)
Phone: 815-626-3861
Fax: 815-626-3861
Hofmann Willett & Associates Rockford, Illinois (Winnebago County)
Engineering services (SIC Code:871199)
Phone: 815-964-2897
Fax: 815-964-2897
Holabird & Root, LLC Chicago, Illinois (Cook County)
Architectural engineering (SIC Code:871201)
Phone: 312-357-1771
Fax: 312-357-1771
Honeywell International Inc Arlington Heights, Illinois (Cook County)
Construction and civil engineering (SIC Code:871104)
Phone: 847-797-4000
Fax: 847-797-4000
Horizons Consulting Inc Jerseyville, Illinois (Jersey County)
Business Consulting Services, Not Elsewhere Classified (SIC Code:874800)
Phone: 618-498-6744
Fax: 618-498-6744
Horner & Shifrin, Inc. O Fallon, Illinois (Saint Clair County)
Engineering services (SIC Code:871199)
Phone: 618-622-3040
Fax: 618-622-3040
Howard R. Green Company Peoria, Illinois (Peoria County)
Engineering Services (SIC Code:871100)
Phone: 309-683-3724
Fax: 309-683-3724
Howell Consulting Inc Des Plaines, Illinois (Cook County)
Computer-aided system services (SIC Code:737304)
Phone: 847-296-2275
Fax: 847-296-2275
Hpd, LLC Plainfield, Illinois (Will County)
Petroleum, mining, and chemical engineers (SIC Code:871103)
Phone: 815-609-2000
Fax: 815-609-2000
HRA Industrial Technology Grp Champaign, Illinois (Champaign County)
Engineering services (SIC Code:871199)
Phone: 217-398-6280
Fax: 217-398-6280
Hughes Associates, Inc. Oak Brook, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-368-0660
Fax: 630-368-0660
Hurst-Rosche Engineers, Inc. Marion, Illinois (Williamson County)
Engineering Services (SIC Code:871100)
Phone: 618-998-0075
Fax: 618-998-0075
Hurst-Rosche Engineers, Inc. East Saint Louis, Illinois (Saint Clair County)
Engineering Services (SIC Code:871100)
Phone: 618-398-0890
Fax: 618-398-0890
Hvac Consultants Inc. Lombard, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-599-0168
Fax: 630-599-0168
Hydro, Inc. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-738-3000
Fax: 312-738-3000
I E Consultants Inc Springfield, Illinois (Sangamon County)
Construction and civil engineering (SIC Code:871104)
Phone: 217-529-8027
Fax: 217-529-8027
I5 Wireless, LLC Northbrook, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 847-562-1888
Fax: 847-562-1888
Ibr Technologies, Inc. Carol Stream, Illinois (Du Page County)
Engineering Services (SIC Code:871100)
Phone: 847-483-6870
Fax: 847-483-6870
Icon Mechanical Construction and Engineering, L.L.C. Granite City, Illinois (Madison County)
Engineering Services (SIC Code:871100)
Phone: 618-452-0035
Fax: 618-452-0035
Ideal Environmental Engineering Inc Bloomington, Illinois (McLean County)
Engineering services (SIC Code:871199)
Phone: 309-828-4259
Fax: 309-828-4259
Iefm Consulting Engineers Coal Valley, Illinois (Rock Island County)
Engineering services (SIC Code:871199)
Phone: 309-799-5150
Fax: 309-799-5150
Ig Consulting, Inc. Wheeling, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-215-1133
Fax: 847-215-1133
Illumitech Inc Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 773-493-0860
Fax: 773-493-0860
Ilt Vignocchi, Inc. Wauconda, Illinois (Lake County)
Landscape services (SIC Code:078102)
Phone: 847-487-5200
Fax: 847-487-5200
Imagineering, Inc Elk Grove Village, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-806-0003
Fax: 847-806-0003
Impact Engineering Solutions Gurnee, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-599-5635
Fax: 847-599-5635
Industrial Pharmaceutical Resources, Inc. Bartlett, Illinois (Du Page County)
Engineering services (SIC Code:871199)
Phone: 630-823-4700
Fax: 630-823-4700
Information Engineering Techniques Crystal Lake, Illinois (McHenry County)
Engineering Services (SIC Code:871100)
Phone: 815-479-9549
Fax: 815-479-9549
Infrastructure Engineering, Inc. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 312-425-9560
Fax: 312-425-9560
Ingenium Technologies Corp. Rockford, Illinois (Winnebago County)
Engineering services (SIC Code:871199)
Phone: 815-399-8803
Fax: 815-399-8803
Innovatech Wauconda, Illinois (Lake County)
Engineering Services (SIC Code:871100)
Phone: 847-487-9375
Fax: 847-487-9375
Innovative Building Concepts, Inc Northbrook, Illinois (Cook County)
Engineering services (SIC Code:871199)
Phone: 847-562-1888
Fax: 847-562-1888
Insight Product Development, L.L.C. Chicago, Illinois (Cook County)
Engineering Services (SIC Code:871100)
Phone: 773-907-9500
Fax: 773-907-9500

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