| Business | Phone |
| Green Tech Solutions 59 Saddle Rd, Walnut Creek 94595 | (415) 794-2005 |
| J C Smith Engineering & Svc 1249 Dewing Ln, Walnut Creek 94595 | (925) 947-0540 |
| Lamorinda Solar 2717 N Main St # A, Walnut Creek 94597 | (925) 283-7563 |
| Nu-Tech Energy Products Hagler 1407 Kinross Ct, Walnut Creek 94598 | (925) 933-7691 |
| Solarwinds Po Box 291, Walnut Creek 94597 | (925) 685-1565 |