| Business | Phone |
| N K Enterprises 2607 W 22nd St, Oak Brook 60523 | (630) 572-3704 |
| Partners Brokerage Inc 2021 Midwest Rd, Oak Brook 60523 | (630) 953-8513 |
| Sino Water Technology Inc 2625 Butterfield Rd 138, Oak Brook 60523 | (630) 928-1186 |
| Vr Business Brokers 2021 Midwest Rd 200, Oak Brook 60523 | (630) 705-3055 |