| Business | Phone |
| Consulting Construction Svc 445 N Wells St, Chicago 60610 | (312) 836-0595 |
| A C Alexander St Eng Ltd 7284 W Devon Ave, Chicago 60631 | (773) 631-7757 |
| Aes For New Americans 3116 W Devon Ave, Chicago 60659 | (773) 381-9436 |
| African American Operating 7534 S Ridgeland Ave, Chicago 60649 | (773) 947-0644 |
| Air Filters Engineers 6736 S Belt Circle Dr, Chicago 60638 | (708) 563-5555 |
| Alfred Benesch & Co 205 N Michigan Ave 2400, Chicago 60601 | (312) 565-0450 |
| Alpha Engineering Ltd 100 W Monroe St, Chicago 60603 | (312) 379-0317 |
| Alvord Burdick & Howson 20 N Wacker Dr 1401, Chicago 60606 | (312) 236-9147 |
| American Consulting Engineers 5440 N Cumberland Ave, Chicago 60656 | (773) 695-9005 |
| American Consulting Engineers 6323 N Avondale Ave, Chicago 60631 | (773) 467-0033 |
| Ammar Consulting Engineers 900 N Lake Shore Dr 711, Chicago 60611 | (312) 787-7257 |
| Applied Geoscience Inc 922 W Madison St, Chicago 60607 | (312) 942-0300 |
| Arcadis Geraghty & Miller Inc 35 E Wacker Dr 1000, Chicago 60601 | (312) 263-6703 |
| Arcca Inc 130 S Jefferson St, Chicago 60661 | (312) 928-9000 |
| Architrend Inc 2023 W Churchill St, Chicago 60647 | (773) 292-9141 |
| Asset E3 8421 S Hermitage Ave, Chicago 60620 | (773) 445-2729 |
| Axiom Group Ltd 6501 W 65th St, Chicago 60638 | (708) 594-8600 |
| B Cube Inc 710 N Fairbanks Ct, Chicago 60611 | (312) 335-3620 |
| Baker Engineering Inc 801 W Adams St 600, Chicago 60607 | (312) 707-8770 |
| Bard Rao Consulting Engineers 211 W Wacker Dr # 200, Chicago 60606 | (312) 781-6900 |
| Bbl 30 W Monroe St, Chicago 60603 | (312) 332-4937 |
| Getty White & Mason 411 S Wells St, Chicago 60607 | (312) 939-1722 |
| George D Kougan & Assoc 7434 N Harlem Ave, Chicago 60631 | (773) 763-5005 |
| Frank P Bleier Pe 2756 N Pine Grove Ave, Chicago 60614 | (773) 348-8182 |
| Gassman Engineers Inc 308 W Randolph St 7east, Chicago 60606 | (312) 372-3890 |
| Gajic Engineering 5501 W Irving Park Rd, Chicago 60641 | (773) 202-9600 |
| Galloway Limited 1528 S Wabash Ave, Chicago 60605 | (312) 786-9717 |
| Gannett Fleming Inc 222 S Riverside Plz # 1860, Chicago 60606 | (312) 454-9494 |
| Bollinger Lach & Assoc Chicago 60601 | (312) 658-0700 |
| G A Abell & Co 407 S Dearborn St 1600, Chicago 60605 | (312) 427-8123 |
| Burns & Mc Donnell 816 W 32nd St, Chicago 60608 | (312) 567-9184 |
| C C Johnson & Malhotra 550 W Washington Blvd 950, Chicago 60661 | (312) 669-0609 |
| Calor Design Group 2217 N Western Ave, Chicago 60647 | (773) 384-2700 |
| Falco Industries 180 N La Salle St, Chicago 60601 | (312) 606-0203 |
| Eyp Mission Critical Fclt 200 W Jackson Blvd, Chicago 60606 | (312) 291-0039 |
| Facilities Of America 2000 2743 W Jarvis Ave, Chicago 60645 | (773) 262-7773 |
| Castle Engineering Co 3579 W Columbus Ave, Chicago 60652 | (773) 471-2200 |
| Eskenazi Farrell & Fodor 125 S Clark St 1822, Chicago 60603 | (312) 939-1664 |
| Environmental Design Intl 200 S Michigan Ave 700, Chicago 60604 | (312) 356-5400 |
| Environmental Engineering Corp 800 S Wells St, Chicago 60607 | (312) 431-5210 |
| Chawla & Assoc Inc 111 W Washington St, Chicago 60602 | (312) 726-7812 |
| Chicago Chem Consultants Corp 14 N Peoria St 2c, Chicago 60607 | (312) 226-2436 |
| Edwards & Kelcey Design Svc 1 N Franklin St 500, Chicago 60606 | (312) 251-3000 |
| Ejm Engineering 411 S Wells St 800, Chicago 60607 | (312) 922-1700 |
| Education International 549 W Randolph St, Chicago 60661 | (312) 559-4100 |
| Eagle Engineering Ltd 5901 N Cicero Ave, Chicago 60646 | (773) 817-7043 |
| Ece Consulting 1301 W Washington Blvd, Chicago 60607 | (312) 243-3232 |
| Chicago Refurbishment Co 1900 N Austin Ave, Chicago 60639 | (773) 385-9500 |
| Dusable Inc 300 W Adams St 517, Chicago 60606 | (312) 360-9300 |
| Dynasty Group Inc 205 W Wacker Dr, Chicago 60606 | (312) 704-1970 |
| Ciorba Group Inc 5507 N Cumberland Ave 402, Chicago 60656 | (773) 775-4009 |
| Civiltech Engineering Inc 30 N La Salle St 2624, Chicago 60602 | (312) 726-5910 |
| Clark Dietz Inc 118 S Clinton St 600, Chicago 60661 | (312) 648-9900 |
| Clark Engineers Inc 111 W Washington St, Chicago 60602 | (312) 628-3886 |
| Design Consulting Engineers 4740 W Peterson Ave, Chicago 60646 | (773) 283-8500 |
| Design Integrity Inc 1608 N Milwaukee Ave, Chicago 60647 | (773) 395-4002 |
| Delta Engineering Inc 111 W Jackson Blvd 910, Chicago 60604 | (312) 377-7700 |
| Denes Nagy Assoc Ltd 680 N Lake Shore Dr 506, Chicago 60611 | (312) 642-0977 |
| Collins Engineers Inc 123 N Wacker Dr 300, Chicago 60606 | (312) 346-5152 |
| Concord Group 161 N Clark St 2050, Chicago 60601 | (312) 424-0250 |
| Cte Engineers Inc 303 E Wacker Dr, Chicago 60601 | (312) 938-0300 |
| Construction Consulting Group 39 S La Salle St 725, Chicago 60603 | (312) 553-0150 |
| D B Sterlin Consultants 208 S La Salle St 1103, Chicago 60604 | (312) 857-1006 |
| Control Systems Inc 200 W Madison St, Chicago 60606 | (312) 345-0578 |
| Crown Fluid Power 6521 N Albany Ave, Chicago 60645 | (773) 465-0770 |
| Cowhey Gudmundson Leder Ltd 212 W Kinzie St, Chicago 60610 | (312) 755-9595 |
| Crawford Murphy & Tilly 70 W Madison St, Chicago 60602 | (312) 855-2540 |
| Chris Glenn 219 N Justine St, Chicago 60607 | (312) 829-4201 |
| Globetrotters Engineering Corp 300 S Wacker Dr # 2, Chicago 60606 | (312) 922-2953 |
| Graef Anhalt Schloemer & Assoc 332 S Michigan Ave 1400, Chicago 60604 | (312) 939-7007 |
| Graef Anhalt Schloemer & Assoc 8501 W Higgins Rd 280, Chicago 60631 | (773) 399-0112 |
| H S Nachman & Assoc Inc 223 W Jackson Blvd, Chicago 60606 | (312) 583-1092 |
| H C Hellmer Ind Engineering 7801 S Keeler Ave, Chicago 60652 | (773) 767-3966 |
| H W Lochner Inc 20 N Wacker Dr 1200, Chicago 60606 | (312) 372-7346 |