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

The California Contractors State License Board (CSLB) lists 4,291 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 June 27, 2026.

Showing 121–180 of 4,291 contractors

1. Adt Security Services

   Boca Raton, CA · CSLB #974443 · as of June 27, 2026
   Active · clear
2. Advance Communications Cabling INC

   Bonita, CA · CSLB #760310 · as of June 27, 2026
   Active · clear
3. Advance Communications & Consulting INC

   Bakersfield, CA · CSLB #624862 · as of June 27, 2026
   Active · clear
4. Advanced Alarms Plus

   Riverside, CA · CSLB #526401 · as of June 27, 2026
   Active · clear
5. Advance Data Communications Incorporated

   Lathrop, CA · CSLB #876865 · as of June 27, 2026
   Active · clear
6. Advanced Audio & Video

   Ventura, CA · CSLB #1121197 · as of June 27, 2026
   Active · clear
7. Advanced Awareness Surveillance Systems

   Boulder Creek, CA · CSLB #1011828 · as of June 27, 2026
   Active · clear
8. Advanced Cable & Communications INC

   Huntington Beach, CA · CSLB #787047 · as of June 27, 2026
   Active · clear
9. Advanced Cable Solutions INC

   Valencia, CA · CSLB #930210 · as of June 27, 2026
   Active · clear
10. Advanced Classroom Technologies

    Arlington, CA · CSLB #1082148 · as of June 27, 2026
    Active · clear
11. Advanced Com

    San Jose, CA · CSLB #885266 · as of June 27, 2026
    Active · clear
12. Advanced Communication And Technology

    Los Angeles, CA · CSLB #888570 · as of June 27, 2026
    Active · clear
13. Advanced Communications Company

    Chico, CA · CSLB #982385 · as of June 27, 2026
    Active · clear
14. Advanced Computers & Graphics INC

    Glendale, CA · CSLB #1079850 · as of June 27, 2026
    Active · clear
15. Advanced Comtech INC

    North Hills, CA · CSLB #811077 · as of June 27, 2026
    Active · clear
16. Advanced Digital Homes INC

    Escondido, CA · CSLB #993321 · as of June 27, 2026
    Active · clear
17. Advanced Homes

    Tarzana, CA · CSLB #970561 · as of June 27, 2026
    Active · clear
18. Advanced Home Technologies

    Granada Hills, CA · CSLB #839221 · as of June 27, 2026
    Active · clear
19. Advanced Integration INC

    Thousand Palms, CA · CSLB #1025391 · as of June 27, 2026
    Active · clear
20. Advanced Interior Electronics California Corporation

    Phoenix, CA · CSLB #987458 · as of June 27, 2026
    Active · clear
21. Advanced Landscape & Hydroseeding

    Mentone, CA · CSLB #758283 · as of June 27, 2026
    Active · clear
22. Advanced Monitoring INC

    Ontario, CA · CSLB #1035016 · as of June 27, 2026
    Active · clear
23. Advanced Network Technology INC

    Corona, CA · CSLB #1073428 · as of June 27, 2026
    Active · clear
24. Advanced Nexus Designs LLC

    Torrance, CA · CSLB #1129133 · as of June 27, 2026
    Active · clear
25. Advanced One Low Voltage

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

    Eureka, CA · CSLB #527700 · as of June 27, 2026
    Active · clear
27. Advanced System Integrator

    Fontana, CA · CSLB #1156312 · as of June 27, 2026
    Active · clear
28. Advanced Technologies Audio Video INC

    Bermuda Dunes, CA · CSLB #873562 · as of June 27, 2026
    Active · clear
29. Advanced Technology Distributors INC

    Ceres, CA · CSLB #770591 · as of June 27, 2026
    Active · clear
30. Advanced Technology Ventures INC

    Madera, CA · CSLB #1069447 · as of June 27, 2026
    Active · clear
31. Advanced Voice & Data INC

    Concord, CA · CSLB #681310 · as of June 27, 2026
    Active · clear
32. Advanced Wireless

    San Luis Obispo, CA · CSLB #943604 · as of June 27, 2026
    Active · clear
33. Advance Sound & Electronics

    Sacramento, CA · CSLB #270247 · as of June 27, 2026
    Active · clear
34. Advance Telecom INC

    Brentwood, CA · CSLB #1031556 · as of June 27, 2026
    Active · clear
35. Advantage Audio Video

    Fullerton, CA · CSLB #939106 · as of June 27, 2026
    Active · clear
36. Advent Technologies INC

    Folsom, CA · CSLB #945988 · as of June 27, 2026
    Active · clear
37. Ae Audio Video INC

    Granada Hills, CA · CSLB #1025470 · as of June 27, 2026
    Active · clear
38. Au Electric Corporation DBA Aec Alarms

    San Jose, CA · CSLB #381840 · as of June 27, 2026
    Active · clear
39. A & E Fiber Optic Services

    Beaumont, CA · CSLB #1116345 · as of June 27, 2026
    Active · clear
40. A E I Technologies

    Costa Mesa, CA · CSLB #701430 · as of June 27, 2026
    Active · clear
41. Aether Telecommunications

    San Ysidro, CA · CSLB #930649 · as of June 27, 2026
    Active · clear
42. Afcom Technologies INC

    Lathrop, CA · CSLB #771744 · as of June 27, 2026
    Active · clear
43. Affinitel Communications

    Daly City, CA · CSLB #965858 · as of June 27, 2026
    Active · clear
44. Affordable Audio Video

    Lake Forest, CA · CSLB #1011755 · as of June 27, 2026
    Active · clear
45. Atlantis Utility INC DBA Affordable Telecom

    Ventura, CA · CSLB #1075079 · as of June 27, 2026
    Active · clear
46. Afl Enterprise Cable Services

    Duncan, CA · CSLB #1056327 · as of June 27, 2026
    Active · clear
47. Afuang Audio Visual & Low Voltage System

    Chino Hills, CA · CSLB #1147523 · as of June 27, 2026
    Active · clear
48. Agape Sight N' Sound

    Chino, CA · CSLB #736052 · as of June 27, 2026
    Active · clear
49. A G C

    Daly City, CA · CSLB #911129 · as of June 27, 2026
    Active · clear
50. Agg Telecommunications

    Sacramento, CA · CSLB #1147522 · as of June 27, 2026
    Active · clear
51. Ag Network Cabling INC

    Pico Rivera, CA · CSLB #1076251 · as of June 27, 2026
    Active · clear
52. Ag Security Services INC

    Livermore, CA · CSLB #982618 · as of June 27, 2026
    Active · clear
53. Ag Solutions

    El Cajon, CA · CSLB #990605 · as of June 27, 2026
    Active · clear
54. A & G Telephone Service INC

    Porterville, CA · CSLB #735670 · as of June 27, 2026
    Active · clear
55. A & H Communications INC

    Irvine, CA · CSLB #944487 · as of June 27, 2026
    Active · clear
56. A & H Networks INC

    Lakeside, CA · CSLB #1122815 · as of June 27, 2026
    Active · clear
57. Ahr Cabling & Communications LLC

    Los Angeles, CA · CSLB #1092962 · as of June 27, 2026
    Active · clear
58. Aire Theater Designs INC

    San Diego, CA · CSLB #884707 · as of June 27, 2026
    Active · clear
59. Airlink Systems INC

    Gilroy, CA · CSLB #1103153 · as of June 27, 2026
    Active · clear
60. Air Mighty Refrigeration & Air Conditioning

    Yorba Linda, CA · CSLB #1003724 · as of June 27, 2026
    Active · clear

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.