| Business | Phone |
| Betman Property Management 130 Saddle Brook Dr, Oak Brook 60523 | (630) 789-9998 |
| Denholtz Associates 2625 Butterfield Rd, Oak Brook 60523 | (630) 586-9800 |
| Equity Office Properties Trust Oak Brook 60523 | (630) 571-4910 |
| Cushman & Wakefield Inc 1515 W 22nd St 100, Oak Brook 60523 | (630) 574-7745 |
| Corinth Property Management 1314 Kensington Rd, Oak Brook 60523 | (630) 915-6518 |