| Business | Phone |
| Alternative Power Systems 135 Colfax Ave, Grass Valley 95945 | (530) 274-0588 |
| A Young Htg Cooling & Solar 11290 Hubbard Rd, Grass Valley 95945 | (530) 470-0339 |
| Connect Energy 1050 Whispering Pines Ln # F, Grass Valley 95945 | (530) 271-1919 |
| Renewable Energy Resources 19566 Burnside Ct, Grass Valley 95945 | (530) 272-4455 |
| Sma America Inc Grass Valley 95945 | (530) 273-4895 |
| Sma American Inc Grass Valley 95945 | (530) 273-8490 |