| 1st Choice Electric Service | James Dale Smith | 1stchoiceelectricservice@gmail.com | (415) 328 5711 | Electricians | Fairfield · Solano County | — | — |
| A & M Electric | Mario Miles Payan | — | (707) 446 2127 | Electricians | Vacaville · Solano County | — | — |
| A Better Electrical Company INC | Jayson Daniel Hinton | — | (707) 230 6701 | Electricians | Vacaville · Solano County | — | — |
| A D C Electric | Antonio David Campos | adcelectric24@gmail.com | (510) 837 1894 | Electricians | Fairfield · Solano County | — | — |
| A E Electric | Anderson Eduviges Rafael Godoy | — | (415) 860 7161 | Electricians | Vallejo · Solano County | — | — |
| A P H Construction | Alex Paul Hill | — | (530) 802 6333 | Electricians | Rio Vista · Solano County | — | — |
| A V F Systems INC | William Arlen Jr Young | — | (833) 428 3797 | Electricians | Vacaville · Solano County | — | — |
| A-team Construction | Guillermo Louis Delgado | — | (707) 580 4584 | Electricians | Dixon · Solano County | — | — |
| Aamp Electric | David Michael Schmidt | — | (707) 580 0586 | Electricians | Fairfield · Solano County | — | — |
| Abl Electric | Jose Antonio Lopez Garcia | — | (707) 631 9955 | Electricians | Vacaville · Solano County | — | — |
| Abraham Electric | Licea Abraham | — | (415) 786 2181 | Electricians | Vallejo · Solano County | — | — |
| Acc West Coast & Ragnar Benson A Joint Venture | Civil Constructors West Coast LLC American | — | (707) 746 8028 | Electricians | Benicia · Solano County | — | — |
| Advanced Electrical & Telcom INC | Valery Alex Gores | — | (510) 548 0588 | Electricians | Vallejo · Solano County | — | — |
| Akash Construction | Ashok Pal Singh | — | (510) 304 6961 | Electricians | Vallejo · Solano County | — | — |
| Alejandro Jimenez | Alejandro Jimenez | — | (707) 673 7147 | Electricians | Fairfield · Solano County | — | — |
| All J's Electric | Juan Carmen Carapia | — | (209) 430 3255 | Electricians | Fairfield · Solano County | — | — |
| Alpha Alarm & Audio INC | Loren Asher Dougherty | info@alphaaa.com | (707) 452 8334 | Electricians | Dixon · Solano County | — | — |
| Alpha Electric | Einstein Alcantara Sambajon | — | (707) 410 4133 | Electricians | Fairfield · Solano County | — | — |
| American Builders Company INC | Alexis Edward Chavez | — | (415) 827 1489 | Electricians | Benicia · Solano County | — | — |
| American Electrical Contracting | Mark Charles Shontz | — | (707) 301 6597 | Electricians | Vacaville · Solano County | — | — |
| Anderson Electric | William Ross Anderson | — | (707) 334 3211 | Electricians | Vallejo · Solano County | — | — |
| Anguiano Electric | Jaime Andres Anguiano | — | (510) 965 8121 | Electricians | Vallejo · Solano County | — | — |
| Angulo Electric | Jose Antonio Angulo | — | (707) 344 6758 | Electricians | Vallejo · Solano County | — | — |
| Armas Engineering INC | Deborah Beans Armour | — | (833) 432 1222 | Electricians | Vacaville · Solano County | — | — |
| Armour Petroleum Service And Equipment Corporation | Michael Anthony Armour | — | (707) 437 6668 | Electricians | Vacaville · Solano County | — | — |
| Ayubi Electric INC | Eric David Ayubi | — | (916) 847 1591 | Electricians | Dixon · Solano County | — | — |
| B B Electric | Brad Marshall Baum | — | (707) 689 0574 | Electricians | Vacaville · Solano County | — | — |
| Bade Electric | Christopher Edward Bade | — | (707) 307 3788 | Electricians | Vallejo · Solano County | — | — |
| Bayside Electric | Rosales Rodriguez Alfredo | — | (415) 240 7140 | Electricians | Vallejo · Solano County | — | — |
| Bellingham Marine Industries INC | David Walter Day | — | (707) 678 2385 | Electricians | Dixon · Solano County | — | — |
| Benicia Bay Electric | Arthur Nicolas La Riviere | — | (707) 332 4925 | Electricians | Benicia · Solano County | — | — |
| Benjamin Rutledge Herston | Benjamin Rutledge Herston | — | (707) 416 7934 | Electricians | Fairfield · Solano County | — | — |
| Better Homes Construction | Bruce Noyes Hill | — | (925) 383 8140 | Electricians | Vacaville · Solano County | — | — |
| Blevins Electric Designs LLC | Konner Lee Blevins | — | (707) 227 8737 | Electricians | Vacaville · Solano County | — | — |
| Bowers Electric INC | Daryl Wayne Bowers | — | (707) 742 4094 | Electricians | Benicia · Solano County | — | — |
| Buzz Electric | Ismail Basri | — | (707) 567 1831 | Electricians | Vallejo · Solano County | — | — |
| C Bates Electric LLC | Carlos Bernett Jr Bates | service@cbateselectric.com | (707) 386 2566 | Electricians | Fairfield · Solano County | — | — |
| C L S Electric | Nelson Antonio Rojas | sales@clselectric.com | (707) 631 6128 | Electricians | Fairfield · Solano County | — | — |
| C Oliver Electrical INC | Celestino Lagi Oliver | — | (408) 469 0417 | Electricians | Vallejo · Solano County | — | — |
| C P Unlimited | C P Unlimited | eben@eyebytes.com | (707) 373 6666 | Electricians | Vacaville · Solano County | — | — |