| Business | Phone |
| Suburban Surveying Svc Ltd 100 N La Salle St, Chicago 60602 | (312) 444-9532 |
| National Survey Svc 30 S Michigan Ave 200, Chicago 60603 | (312) 630-9480 |
| Sekerez Zarko & Assoc Inc 8 S Michigan Ave 1007, Chicago 60603 | (312) 236-6933 |
| Ubm Inc 223 W Jackson Blvd 1200, Chicago 60606 | (312) 939-0505 |
| Gremley & Biedermann Inc 4505 N Elston Ave, Chicago 60630 | (773) 685-5102 |
| M M Surveying Co 5812 W Higgins Ave, Chicago 60630 | (773) 282-5900 |
| Mc Tigue & Spiewak Inc 5805 W Higgins Ave, Chicago 60630 | (773) 736-1344 |
| Northwest Survey Svc 7533 W Devon Ave, Chicago 60631 | (773) 685-4077 |
| Lightning Construction Co 5639 W 63rd St, Chicago 60638 | (773) 284-9597 |
| L R Pass & Assoc 11418 S Western Ave, Chicago 60643 | (773) 233-8510 |
| Metro Traffic Control 161 N Clark St, Chicago 60601 | (312) 467-2920 |
| J M Hank & Assn Chicago 60602 | (312) 372-4644 |
| Studnicka & Assoc Ltd 1 N Dearborn St 1300, Chicago 60602 | (312) 476-5803 |
| Sekerez Land Surveying 8 S Michigan Ave 1007, Chicago 60603 | (312) 236-7945 |
| Zarko Sekerez & Assoc Inc 8 S Michigan Ave, Chicago 60603 | (312) 726-1313 |
| Wayls Engineering Survey 1130 S Wabash Ave 501, Chicago 60605 | (312) 834-0189 |
| Falk Pli Engineering & Survery 5979 Mccasland Ave, Chicago 60616 | (312) 842-4270 |
| Professionals Associated Const 7100 N St Ave, Chicago 60618 | (773) 267-1122 |
| Omni Construction Black Inc 137 E 124th St, Chicago 60628 | (773) 291-9106 |
| Top Art Construction 4112 N Nashville Ave, Chicago 60634 | (773) 283-6592 |
| Sci Surveys Chicago 60643 | (773) 239-6187 |
| Landmark Survey Inc Chicago 60646 | (773) 763-9970 |
| Thomas A Molloy Ltd 6787 N Jean Ave, Chicago 60646 | (773) 774-1330 |