| Business | Phone |
| Compuware Corp 475 N Martingale Rd 800, Schaumburg 60173 | (847) 995-0067 |
| Etek It Svc 870 E Higgins Rd, Schaumburg 60173 | (847) 995-1148 |
| Mascon Global Ltd 1699 E Woodfield Rd 200, Schaumburg 60173 | (847) 969-8518 |
| Primesoft Solutions Inc 650 E Algonquin Rd, Schaumburg 60173 | (847) 925-1624 |
| Xerillion Corp 1701 E Woodfield Rd, Schaumburg 60173 | (847) 619-7278 |
| Wireless Networks Installed 929 Long Meadow Dr, Schaumburg 60193 | (847) 534-0228 |
| K & M Accounting 1385 Dennison Rd, Schaumburg 60194 | (847) 490-9075 |
| M Curve Inc 2500 W Higgins Rd 880, Schaumburg 60194 | (847) 843-8200 |