| Business | Phone |
| Atwood Business Park 11768 Atwood Rd, Auburn 95603 | (530) 823-3877 |
| Bettencourt Properties 1010 Racquet Club Dr, Auburn 95603 | (530) 745-9990 |
| C B Consulting & Development 12250 Herdal Dr, Auburn 95603 | (530) 889-0631 |
| Cagle Properties 1520 Industrial Dr, Auburn 95603 | (530) 885-3072 |
| Collaborative Development 12250 Herdal Dr, Auburn 95603 | (530) 823-7834 |
| Duff Investments 510 Adriana Pl, Auburn 95603 | (530) 885-4525 |
| Mc Kinley Co Auburn 95602 | (530) 269-2927 |
| Milco Development Inc 13620 Lincoln Way # 230, Auburn 95603 | (530) 888-0191 |
| Sierra Horizon Industries Auburn 95603 | (530) 886-8458 |
| Soto Land & Investment Cnslts Po Box 9265, Auburn 95604 | (530) 889-2444 |
| Terrafirma Pacific 12760 Earhart Ave, Auburn 95602 | (530) 885-4668 |