Licensed Electrical (C-10) contractors in Castro Valley, CA

The California Contractors State License Board (CSLB) lists 35 Electrical (C-10) contractors in Castro Valley, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

35 contractors

1. Accel Electric

   Castro Valley, CA · CSLB #944497 · as of June 27, 2026
   Active · clear
2. Allied Controls

   Castro Valley, CA · CSLB #956704 · as of June 27, 2026
   Active · clear
3. Bay Design Electric

   Castro Valley, CA · CSLB #1112910 · as of June 27, 2026
   Active · clear
4. Big World Electric Company

   Castro Valley, CA · CSLB #770416 · as of June 27, 2026
   Active · clear
5. Bisimwa Electric

   Castro Valley, CA · CSLB #876478 · as of June 27, 2026
   Active · clear
6. Boulder Electric

   Castro Valley, CA · CSLB #917668 · as of June 27, 2026
   Active · clear
7. C A M Electric

   Castro Valley, CA · CSLB #611854 · as of June 27, 2026
   Active · clear
8. Castro Valley Electrical INC

   Castro Valley, CA · CSLB #949950 · as of June 27, 2026
   Active · clear
9. Cisco Electric

   Castro Valley, CA · CSLB #908222 · as of June 27, 2026
   Active · clear
10. Cota Electric INC

    Castro Valley, CA · CSLB #1029993 · as of June 27, 2026
    Active · clear
11. C W Electric

    Castro Valley, CA · CSLB #1155572 · as of June 27, 2026
    Active · clear
12. Eastbay Electric

    Castro Valley, CA · CSLB #787116 · as of June 27, 2026
    Active · clear
13. Electric Ac DC

    Castro Valley, CA · CSLB #1065330 · as of June 27, 2026
    Active · clear
14. Electricali

    Castro Valley, CA · CSLB #1116286 · as of June 27, 2026
    Active · clear
15. Electrical Ministries

    Castro Valley, CA · CSLB #1151302 · as of June 27, 2026
    Active · clear
16. Field Knowledge Electric

    Castro Valley, CA · CSLB #1130987 · as of June 27, 2026
    Active · clear
17. Harvey Electric

    Castro Valley, CA · CSLB #457858 · as of June 27, 2026
    Active · clear
18. J R S Electric

    Castro Valley, CA · CSLB #763900 · as of June 27, 2026
    Active · clear
19. Layne Electrical Ent

    Castro Valley, CA · CSLB #380217 · as of June 27, 2026
    Active · clear
20. Jae Lee

    Castro Valley, CA · CSLB #1118208 · as of June 27, 2026
    Active · clear
21. L E Electric INC

    Castro Valley, CA · CSLB #1063050 · as of June 27, 2026
    Active · clear
22. Light Saver Electric

    Castro Valley, CA · CSLB #1111545 · as of June 27, 2026
    Active · clear
23. Mardigras Electric CO

    Castro Valley, CA · CSLB #504106 · as of June 27, 2026
    Active · clear
24. Morgan Lodge INC DBA M L Electric

    Castro Valley, CA · CSLB #878028 · as of June 27, 2026
    Active · clear
25. Mopia Electric LLC

    Castro Valley, CA · CSLB #957769 · as of June 27, 2026
    Active · clear
26. Neil Electric

    Castro Valley, CA · CSLB #882448 · as of June 27, 2026
    Active · clear
27. Russell Electric Corporation

    Castro Valley, CA · CSLB #1106773 · as of June 27, 2026
    Active · clear
28. Source Energy LLC

    Castro Valley, CA · CSLB #1147405 · as of June 27, 2026
    Active · clear
29. Tang's Electric

    Castro Valley, CA · CSLB #661361 · as of June 27, 2026
    Active · clear
30. Toulze Electric

    Castro Valley, CA · CSLB #1125420 · as of June 27, 2026
    Active · clear
31. T V R Electric INC

    Castro Valley, CA · CSLB #1026571 · as of June 27, 2026
    Active · clear
32. Van Electric

    Castro Valley, CA · CSLB #911148 · as of June 27, 2026
    Active · clear
33. Voltron Electric INC

    Castro Valley, CA · CSLB #1030181 · as of June 27, 2026
    Active · clear
34. Vonnegut Electric & Solar

    Castro Valley, CA · CSLB #1080386 · as of June 27, 2026
    Active · clear
35. The Wright Electrical Contractor

    Castro Valley, CA · CSLB #826446 · as of June 27, 2026
    Active · clear

See all Electrical (C-10) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.