| Business | Phone |
| Devine Engineering 307 W University Ave, Champaign 61820 | (217) 359-1500 |
| Applied Research Assoc Inc 505 W University Ave, Champaign 61820 | (217) 356-4500 |
| Hdc Engineering 201 W Springfield Ave 300, Champaign 61820 | (217) 352-6976 |
| Henneman Engineering Inc 1605 S State St 101, Champaign 61820 | (217) 359-1514 |
| Kinsel & Sons Consulting 1306 Garden Ln, Champaign 61820 | (217) 356-0357 |
| Risk Management Solutions Inc 2402 Windsor Pl, Champaign 61820 | (217) 359-5070 |
| Sodemann & Assoc Inc 340 N Neil St, Champaign 61820 | (217) 352-7688 |
| Vegrzyn Sarver & Assoc Inc 24 E Green St 318, Champaign 61820 | (217) 359-6603 |
| Wickersheimer Engineers 821 S Neil St, Champaign 61820 | (217) 352-0081 |
| Zurheide-Herrmann Engineering 2 Henson Pl 1, Champaign 61820 | (217) 352-1435 |
| Kasten Corp 505 S Willis Ave, Champaign 61821 | (217) 355-4612 |
| Oedifice Engineering Inc 2105 Cypress Dr, Champaign 61821 | (217) 363-3270 |
| Schomer & Assoc Inc 2117 Robert Dr, Champaign 61821 | (217) 359-6602 |
| Industrial Technology Group 2803 Research Rd, Champaign 61822 | (217) 398-6280 |
| Jin Consulting Inc 2808 Willow Bend Rd, Champaign 61822 | (217) 351-7850 |
| Midwest Engineering Svc Inc 501 Mercury Dr, Champaign 61822 | (217) 359-2128 |
| Mikucki & Assoc Engineers 3307 Roxford Dr, Champaign 61822 | (217) 359-2125 |
| Modern Control Co 7 Genevieve Ct, Champaign 61822 | (217) 355-9599 |
| Russell Engineering 2110 N Market St, Champaign 61822 | (217) 355-1540 |