| Business | Phone |
| A P Temps Inc 201 E Gateway Dr, Barrington 60010 | (847) 487-5400 |
| Workers Inc 522 S Northwest Hwy, Barrington 60010 | (847) 382-1892 |
| Assured Staffing 325 E Main St, Barrington 60010 | (847) 381-3322 |
| Stratum Health Care Systems 117 S Cook St 328, Barrington 60010 | (847) 620-5100 |
| Lykings & Assoc Recordkeeping 21073 N 19th St, Barrington 60010 | (847) 304-5560 |
| Infostaff Services Corp 20 Ridge Rd, Barrington 60010 | (847) 381-7251 |