| Business | Phone |
| Principal Resource Group 313 Railroad Ave # 203, Nevada City 95959 | (530) 478-6478 |
| Chalpin Environmental Svc 547 Uren St, Nevada City 95959 | (530) 273-4978 |
| Jim Ciaffoni 17180 Broken Arrow Pl, Nevada City 95959 | (530) 265-0727 |
| Diversified Ski Svc 212 Clay St, Nevada City 95959 | (530) 478-1866 |
| Meta 10370 Boulder St, Nevada City 95959 | (530) 265-9305 |
| Robert Shaw Engineering 547 Uren St # B, Nevada City 95959 | (530) 265-3681 |
| West Coast Environ & Engrg 101 Providence Mine Rd # 106c, Nevada City 95959 | (530) 470-0215 |