| Business | Phone |
| Althouse & Meade Inc Paso Robles 93446 | (805) 237-9626 |
| Envirochem Technologies 3115 Propeller Dr, Paso Robles 93446 | (805) 239-0144 |
| Helianthus Inc Paso Robles 93446 | (805) 237-8776 |
| Luft Engineers & Environmental Paso Robles 93446 | (805) 227-4902 |
| Macoy Resource Corp 2121 Pine St # B, Paso Robles 93446 | (805) 227-1090 |
| Sierra Delta Corp 935 Riverside Ave # 21, Paso Robles 93446 | (805) 239-9293 |