| Business | Phone |
| Csi Staff 2001 Midwest Rd 310, Oak Brook 60523 | (630) 342-6849 |
| Manpower Inc 1900 Spring Rd 103, Oak Brook 60523 | (630) 684-0484 |
| Interactive Business Systems 2625 Butterfield Rd, Oak Brook 60523 | (630) 571-9100 |
| Interim Personnel 1515 W 22nd St 250, Oak Brook 60523 | (630) 571-3900 |
| Miller Resource Group 1415 W 22nd St 725, Oak Brook 60523 | (630) 990-8233 |
| Pri Staffing 900 Jorie Blvd 58, Oak Brook 60523 | (630) 571-5000 |
| Spherion 2907 Butterfield Rd 220, Oak Brook 60523 | (630) 954-4633 |
| Staffpath 123 Mary St 120, Oak Brook 60523 | (630) 472-0054 |
| Tac Worldwide Co 2625 Butterfield Rd 306s, Oak Brook 60523 | (630) 472-0153 |
| Yoh Co 1420 Kensington Rd 116, Oak Brook 60523 | (630) 990-8800 |