| Business | Phone |
| Amelco Electric 901 Howe Rd, Martinez 94553 | (925) 335-9301 |
| Contra Costa Electric Inc 825 Howe Rd, Martinez 94553 | (925) 229-4250 |
| Crockett Electric Co 3440 Pacheco Blvd, Martinez 94553 | (925) 228-1020 |
| Dawson Electric 3775 Pacheco Blvd, Martinez 94553 | (925) 686-3535 |
| Delta Electrical Constrctn Inc 4305 Pacheco Blvd, Martinez 94553 | (925) 370-3400 |
| Hein Lighting & Electric Inc 5030 Blum Rd, Martinez 94553 | (925) 939-1528 |
| Alhambra Electric 836 Alhambra Ave, Martinez 94553 | (925) 228-2050 |
| Alhambra Valley Electric Martinez 94553 | (925) 372-0899 |
| Amber Electrical Svc 175 Fig Tree Ln, Martinez 94553 | (925) 324-2455 |
| Bay Area & Electric Inc Avon Rd, Martinez 94553 | (925) 229-9577 |
| Cal-Com Electric 157 Nardi Ln # A, Martinez 94553 | (925) 372-9015 |
| D B Electric 815 Arnold Dr # 9, Martinez 94553 | (925) 335-9000 |
| Dawson Electric 3775 Pacheco Blvd, Martinez 94553 | (925) 723-3535 |
| Forrest Electric 3500 Ricks Ave, Martinez 94553 | (925) 372-7078 |
| Mulder Electric Martinez 94553 | (925) 229-3318 |
| Osh Electric 650 Vine Hill Way, Martinez 94553 | (925) 372-0905 |
| Roe's Construction & Elec Svc 2121 Walnut St, Martinez 94553 | (925) 228-0138 |
| Shanahan Services Po Box 2692, Martinez 94553 | (925) 212-9798 |
| Walter Electrical Contractor 990 Center Ave, Martinez 94553 | (925) 372-8984 |