| Business | Phone |
| Akure 2201 W Campbell Park Dr, Chicago 60612 | (312) 829-1270 |
| Biochemanalysis Corp 2201 W Campbell Park Dr, Chicago 60612 | (312) 243-5988 |
| Brackman Research 500 N Michigan Ave 1920, Chicago 60611 | (312) 464-2710 |
| Celsis Inc 400 W Erie St, Chicago 60610 | (312) 476-1200 |
| Chicago Research Institute Inc 6321 N Avondale Ave, Chicago 60631 | (773) 774-7585 |
| Clonex Development 211 E Ohio St 2619, Chicago 60611 | (312) 467-7069 |
| Chicago Technology Park 2201 W Campbell Park Dr, Chicago 60612 | (312) 829-7252 |