| Business | Phone |
| Farber Energy Design 1990 N California Blvd # 830, Walnut Creek 94596 | (925) 926-0425 |
| H B Capital Resources Ltd 2175 N California Blvd, Walnut Creek 94596 | (925) 933-9229 |
| North American Resources Corp 1375 Locust St, Walnut Creek 94596 | (925) 934-5610 |
| Sutton Solar Svc 1651 2nd Ave, Walnut Creek 94597 | (510) 551-5339 |
| U W Resources Group 1333 N California Blvd, Walnut Creek 94596 | (925) 941-2500 |