Licensed Low Voltage Systems (C-7) contractors in California

The California Contractors State License Board (CSLB) lists 4,245 California contractors classified C-7 (Low Voltage Systems (C-7)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of October 8, 2026.

Showing 2,941–3,000 of 4,245 contractors

1. Reftek Systems INC

   Dartmouth, CA · CSLB #1161345 · as of October 8, 2026
   Active · clear
2. Regent5 LLC

   San Carlos, CA · CSLB #1033103 · as of October 8, 2026
   Active · clear
3. Regent Datacom Systems INC

   Downey, CA · CSLB #1081482 · as of October 8, 2026
   Active · clear
4. Rei Consultants Incorporated

   Wilmington, CA · CSLB #963279 · as of October 8, 2026
   Active · clear
5. Reliable Business Concerns INC

   Everett, CA · CSLB #968227 · as of October 8, 2026
   Active · clear
6. Reliable Cable T V Contractors INC

   Gardena, CA · CSLB #810919 · as of October 8, 2026
   Active · clear
7. Reliable Fire And Security Solutions INC

   Madera, CA · CSLB #928226 · as of October 8, 2026
   Active · clear
8. Reliable Low Voltage Services

   Anaheim, CA · CSLB #1025702 · as of October 8, 2026
   Active · clear
9. Reliable Cabling Solutions INC DBA Reliable Security Data

   Mission Hills, CA · CSLB #1064964 · as of October 8, 2026
   Active · clear
10. Reliable Technical Services

    Sacramento, CA · CSLB #1023901 · as of October 8, 2026
    Active · clear
11. Reliable Technologies

    Santa Barbara, CA · CSLB #1070685 · as of October 8, 2026
    Active · clear
12. Reliable Telephone & Data INC

    Northridge, CA · CSLB #838338 · as of October 8, 2026
    Active · clear
13. A Reliance Communication Company

    Moreno Valley, CA · CSLB #994004 · as of October 8, 2026
    Active · clear
14. Relldan INC

    Huntington Beach, CA · CSLB #967525 · as of October 8, 2026
    Active · clear
15. Robert Michael Lee Rendon

    West Covina, CA · CSLB #898937 · as of October 8, 2026
    Active · clear
16. Renum Low Voltage Systems

    El Cajon, CA · CSLB #1131181 · as of October 8, 2026
    Active · clear
17. Repeated Signal Solutions INC

    Goleta, CA · CSLB #938428 · as of October 8, 2026
    Active · clear
18. Republic Elite Integration INC

    Sacramento, CA · CSLB #987312 · as of October 8, 2026
    Active · clear
19. Resi - Comm Electrical And Alarms

    Carmichael, CA · CSLB #611156 · as of October 8, 2026
    Active · clear
20. Residential Technology Services Corp

    Morgan Hill, CA · CSLB #1114200 · as of October 8, 2026
    Active · clear
21. Resonant Communication Systems

    Ben Lomond, CA · CSLB #640395 · as of October 8, 2026
    Active · clear
22. Resource One Low Voltage Security INC

    Ontario, CA · CSLB #1037327 · as of October 8, 2026
    Active · clear
23. Respond Communications Plus INC

    Santa Fe Springs, CA · CSLB #643634 · as of October 8, 2026
    Active · clear
24. Retrotel INC

    Palm Desert, CA · CSLB #858285 · as of October 8, 2026
    Active · clear
25. Revelations Integrated Services INC

    Monrovia, CA · CSLB #843543 · as of October 8, 2026
    Active · clear
26. Reverb Integration INC

    Los Angeles, CA · CSLB #1081070 · as of October 8, 2026
    Active · clear
27. Revol Av INC

    Newport Beach, CA · CSLB #1013834 · as of October 8, 2026
    Active · clear
28. Rey Communications

    San Jose, CA · CSLB #647850 · as of October 8, 2026
    Active · clear
29. RFC Wireless INC

    Fremont, CA · CSLB #1146413 · as of October 8, 2026
    Active · clear
30. Robert F Medlyn DBA R F M Integrations

    Grass Valley, CA · CSLB #816204 · as of October 8, 2026
    Active · clear
31. RG3 Comm

    Bakersfield, CA · CSLB #1121102 · as of October 8, 2026
    Active · clear
32. RGS Communications

    Beaumont, CA · CSLB #1117559 · as of October 8, 2026
    Active · clear
33. Rhodes Network Services INC

    San Jose, CA · CSLB #935807 · as of October 8, 2026
    Active · clear
34. Richard Albert Electric INC

    San Francisco, CA · CSLB #1071498 · as of October 8, 2026
    Active · clear
35. Richardson's Phone Service

    San Diego, CA · CSLB #766297 · as of October 8, 2026
    Active · clear
36. Rich Rosensweig

    Long Beach, CA · CSLB #912010 · as of October 8, 2026
    Active · clear
37. Right Fit INC

    Fresno, CA · CSLB #1128596 · as of October 8, 2026
    Active · clear
38. Rim Of The World Communications

    Running Springs, CA · CSLB #918709 · as of October 8, 2026
    Active · clear
39. Ring And Ping INC

    Santa Ana, CA · CSLB #958891 · as of October 8, 2026
    Active · clear
40. Ring Protect INC

    Yukon, CA · CSLB #1036223 · as of October 8, 2026
    Active · clear
41. Guillermo Rios

    Moreno Valley, CA · CSLB #1048454 · as of October 8, 2026
    Active · clear
42. Ris Communication Systems INC

    Valencia, CA · CSLB #1037373 · as of October 8, 2026
    Active · clear
43. Victor H Rivera

    Fountain Valley, CA · CSLB #1008472 · as of October 8, 2026
    Active · clear
44. River City Alarm Systems LLC

    Citrus Heights, CA · CSLB #1159674 · as of October 8, 2026
    Active · clear
45. Riverside Technologies INC

    Omaha, CA · CSLB #1135233 · as of October 8, 2026
    Active · clear
46. Riverview Systems Group INC

    Milpitas, CA · CSLB #542097 · as of October 8, 2026
    Active · clear
47. Rives Projects INC DBA Rives Low Voltage

    Los Angeles, CA · CSLB #988665 · as of October 8, 2026
    Active · clear
48. Riviera Av INC

    Santa Barbara, CA · CSLB #1073410 · as of October 8, 2026
    Active · clear
49. R J L Communications

    Torrance, CA · CSLB #660686 · as of October 8, 2026
    Active · clear
50. R K Electric INC

    Fremont, CA · CSLB #471290 · as of October 8, 2026
    Active · clear
51. R K M Communications INC

    Torrance, CA · CSLB #839444 · as of October 8, 2026
    Active · clear
52. R L D Audio/video

    Long Beach, CA · CSLB #987126 · as of October 8, 2026
    Active · clear
53. R L Technologies INC

    Valencia, CA · CSLB #852159 · as of October 8, 2026
    Active · clear
54. R M L Productions INC

    San Rafael, CA · CSLB #810833 · as of October 8, 2026
    Active · clear
55. R M Systems INC

    Placentia, CA · CSLB #835143 · as of October 8, 2026
    Active · clear
56. R N R Electrical INC

    San Mateo, CA · CSLB #837858 · as of October 8, 2026
    Active · clear
57. Robert Fattaruso

    Riverside, CA · CSLB #608794 · as of October 8, 2026
    Active · clear
58. Roberts Home Audio And Video INC

    Los Angeles, CA · CSLB #502412 · as of October 8, 2026
    Active · clear
59. Brett Robinson

    Petaluma, CA · CSLB #1128262 · as of October 8, 2026
    Active · clear
60. Jonathon Robinson

    San Francisco, CA · CSLB #1055228 · as of October 8, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 8, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.