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 6, 2026.

Showing 121–180 of 4,245 contractors

1. A D Security INC

   Sierra Madre, CA · CSLB #974487 · as of October 6, 2026
   Active · clear
2. Adt Security Services

   Boca Raton, CA · CSLB #974443 · as of October 6, 2026
   Active · clear
3. Advance Communications Cabling INC

   Bonita, CA · CSLB #760310 · as of October 6, 2026
   Active · clear
4. Advance Communications & Consulting INC

   Bakersfield, CA · CSLB #624862 · as of October 6, 2026
   Active · clear
5. Advanced Alarms Plus

   Riverside, CA · CSLB #526401 · as of October 6, 2026
   Active · clear
6. Advance Data Communications Incorporated

   Lathrop, CA · CSLB #876865 · as of October 6, 2026
   Active · clear
7. Advanced Audio & Video

   Ventura, CA · CSLB #1121197 · as of October 6, 2026
   Active · clear
8. Advanced Awareness Surveillance Systems

   Boulder Creek, CA · CSLB #1011828 · as of October 6, 2026
   Active · clear
9. Advanced Cable & Communications INC

   Huntington Beach, CA · CSLB #787047 · as of October 6, 2026
   Active · clear
10. Advanced Cable Solutions INC

    Valencia, CA · CSLB #930210 · as of October 6, 2026
    Active · clear
11. Advanced Classroom Technologies

    Arlington, CA · CSLB #1082148 · as of October 6, 2026
    Active · clear
12. Advanced Com

    San Jose, CA · CSLB #885266 · as of October 6, 2026
    Active · clear
13. Advanced Communication And Technology

    Los Angeles, CA · CSLB #888570 · as of October 6, 2026
    Active · clear
14. Advanced Communications Company

    Chico, CA · CSLB #982385 · as of October 6, 2026
    Active · clear
15. Advanced Computers & Graphics INC

    Glendale, CA · CSLB #1079850 · as of October 6, 2026
    Active · clear
16. Advanced Comtech INC

    North Hills, CA · CSLB #811077 · as of October 6, 2026
    Active · clear
17. Advanced Digital Homes INC

    Escondido, CA · CSLB #993321 · as of October 6, 2026
    Active · clear
18. Advanced Homes

    Tarzana, CA · CSLB #970561 · as of October 6, 2026
    Active · clear
19. Advanced Home Technologies

    Granada Hills, CA · CSLB #839221 · as of October 6, 2026
    Active · clear
20. Advanced Integration INC

    Thousand Palms, CA · CSLB #1025391 · as of October 6, 2026
    Active · clear
21. Advanced Interior Electronics California Corporation

    Phoenix, CA · CSLB #987458 · as of October 6, 2026
    Active · clear
22. Advanced Landscape & Hydroseeding

    Mentone, CA · CSLB #758283 · as of October 6, 2026
    Active · clear
23. Advanced Monitoring INC

    Ontario, CA · CSLB #1035016 · as of October 6, 2026
    Active · clear
24. Advanced Network Technology INC

    Corona, CA · CSLB #1073428 · as of October 6, 2026
    Active · clear
25. Advanced Nexus Designs LLC

    Torrance, CA · CSLB #1129133 · as of October 6, 2026
    Active · clear
26. Advanced One Low Voltage

    Oakland, CA · CSLB #1072687 · as of October 6, 2026
    Active · clear
27. Advanced Security Systems

    Eureka, CA · CSLB #527700 · as of October 6, 2026
    Active · clear
28. Advanced System Integrator

    Fontana, CA · CSLB #1156312 · as of October 6, 2026
    Active · clear
29. Advanced Technologies Audio Video INC

    Bermuda Dunes, CA · CSLB #873562 · as of October 6, 2026
    Active · clear
30. Advanced Technology Distributors INC

    Ceres, CA · CSLB #770591 · as of October 6, 2026
    Active · clear
31. Advanced Technology Ventures INC

    Madera, CA · CSLB #1069447 · as of October 6, 2026
    Active · clear
32. Advanced Voice & Data INC

    Concord, CA · CSLB #681310 · as of October 6, 2026
    Active · clear
33. Advanced Wireless

    San Luis Obispo, CA · CSLB #943604 · as of October 6, 2026
    Active · clear
34. Advance Sound & Electronics

    Sacramento, CA · CSLB #270247 · as of October 6, 2026
    Active · clear
35. Advance Telecom INC

    Brentwood, CA · CSLB #1031556 · as of October 6, 2026
    Active · clear
36. Advantage Audio Video

    Fullerton, CA · CSLB #939106 · as of October 6, 2026
    Active · clear
37. Advent Technologies INC

    Folsom, CA · CSLB #945988 · as of October 6, 2026
    Active · clear
38. Ae Audio Video INC

    Granada Hills, CA · CSLB #1025470 · as of October 6, 2026
    Active · clear
39. Au Electric Corporation DBA Aec Alarms

    San Jose, CA · CSLB #381840 · as of October 6, 2026
    Active · clear
40. A & E Fiber Optic Services

    Beaumont, CA · CSLB #1116345 · as of October 6, 2026
    Active · clear
41. A E I Technologies

    Costa Mesa, CA · CSLB #701430 · as of October 6, 2026
    Active · clear
42. Aerioconnect LLC

    Sherman Oaks, CA · CSLB #1137761 · as of October 6, 2026
    Active · clear
43. Aerosphere

    Las Vegas, CA · CSLB #1125635 · as of October 6, 2026
    Active · clear
44. Aether Telecommunications

    San Ysidro, CA · CSLB #930649 · as of October 6, 2026
    Active · clear
45. Afcom Technologies INC

    Lathrop, CA · CSLB #771744 · as of October 6, 2026
    Active · clear
46. Affinitel Communications

    Daly City, CA · CSLB #965858 · as of October 6, 2026
    Active · clear
47. Affordable Audio Video

    Lake Forest, CA · CSLB #1011755 · as of October 6, 2026
    Active · clear
48. Atlantis Utility INC DBA Affordable Telecom

    Ventura, CA · CSLB #1075079 · as of October 6, 2026
    Active · clear
49. Afl Enterprise Cable Services

    Duncan, CA · CSLB #1056327 · as of October 6, 2026
    Active · clear
50. Afuang Audio Visual & Low Voltage System

    Chino Hills, CA · CSLB #1147523 · as of October 6, 2026
    Active · clear
51. Agape Sight N' Sound

    Chino, CA · CSLB #736052 · as of October 6, 2026
    Active · clear
52. A G C

    Daly City, CA · CSLB #911129 · as of October 6, 2026
    Active · clear
53. Agg Telecommunications

    Sacramento, CA · CSLB #1147522 · as of October 6, 2026
    Active · clear
54. Agi7 INC

    San Jose, CA · CSLB #1159441 · as of October 6, 2026
    Active · clear
55. Aglow Outdoor Lighting LLC

    Pleasanton, CA · CSLB #1161172 · as of October 6, 2026
    Active · clear
56. Ag Network Cabling INC

    Pico Rivera, CA · CSLB #1076251 · as of October 6, 2026
    Active · clear
57. Ag Security Services INC

    Livermore, CA · CSLB #982618 · as of October 6, 2026
    Active · clear
58. Ag Solutions

    El Cajon, CA · CSLB #990605 · as of October 6, 2026
    Active · clear
59. A & G Telephone Service INC

    Porterville, CA · CSLB #735670 · as of October 6, 2026
    Active · clear
60. A & H Communications INC

    Irvine, CA · CSLB #944487 · as of October 6, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.