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Licensed Low Voltage Contractors in San Francisco, California

Updated November 1, 2026 from CSLB's public license file · C-7 Low Voltage Systems Contractor

  • 59licensed low voltage contractors
  • 58active (Clear)
  • 1.7%with a suspension
  • 35.6%workers' comp exempt
  • 15.4 yrsmedian time licensed
  • 74.6%corp / LLC / partnership (25.4% sole owner)
  • 3new in the last 12 months
  • —change tracking began November 1, 2026

There are 59 low voltage contractors based in San Francisco in CSLB's current file. 58 (98.3%) have a Clear status as of November 1, 2026.

The share with a suspension (1.7%) is close to the San Francisco County rate for the same license (1.7%). 35.6% report a workers' comp exemption, 5.2 points lower than the statewide figure for low voltage contractors (40.8%), so many of these businesses say they have no employees.

Experience varies: 62.7% have been licensed 10+ years and 3 are new this year (median 15.4 years, vs 14.4 statewide).

In California this work generally calls for the C-7 Low Voltage Systems Contractor license (or a B license when it is part of a larger multi-trade job). See the C-7 Low Voltage Systems Contractor guide for what the license covers.

How to check a low voltage contractor's license in San Francisco

  1. Open the low voltage contractor's profile from the table below (or search San Francisco listings by name). Check that C-7 appears among its classifications and that the primary status reads Clear. What C-7 covers.
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  3. Get the bid and contract in writing with the license number on it. If the job tops $1,000 in labor and materials, a licensed low voltage contractor is required by law. See the $1,000 rule.

50 of 59 low voltage contractors in San Francisco

San Francisco low voltage contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed low voltage contractors in San Francisco
Business nameLicense #StatusYearsWorkers' compBond
Tony's Windows and Glass INC 352757 Clear 48 Insured On file
Twilight Security & Investigation INC 463356 Clear 42 Insured On file
Warman Security 470224 Clear 41 Insured On file
Specialty Communications 548176 Clear 38 None On file
Microbiz Service Company 576734 Clear 37 Insured On file
Bbi Installed Systems 582743 Clear 36 Insured On file
Coastside Communications INC 619910 Clear 35 Insured On file
United California Glass & Door 628422 Clear 35 Insured On file
Emergency Systems Maintenance INC 649464 Clear 34 Exempt On file
Metro Locksmiths INC 698016 Clear 32 Insured On file
Lima Carlos 743036 Clear 28 Exempt On file
Telbon Communications INC 755096 Clear 28 Insured On file
Merritt Alan 783229 Clear 26 Exempt On file
Aremtech INC 795570 Clear 25 Insured On file
Com1 Communications 806343 Clear 24 Insured On file
Applied Video Solutions INC 810603 Clear 24 Insured On file
Cooptek 828697 Clear 22 Exempt On file
A A Discount Phone System 838679 Clear 22 Exempt On file
Telwork Solutions INC 865476 Clear 21 Insured On file
Simplifi 873138 Clear 20 Insured On file
Quan Kelly Research 878103 Clear 20 Exempt On file
G T Tech INC 905979 Clear 19 Insured On file
United California Access & Security 916641 Clear 18 Insured On file
Electric Current Construction INC 935328 Clear 17 Insured On file
Metro Eighteen INC 942394 Clear 16 Insured On file
Thorn Ron Construction INC 942822 Clear 16 Insured On file
Atompod Networks and Integration 951186 Clear 16 Insured On file
Fidato 953242 Clear 16 Insured On file
Wired Loss Prevention 955887 Clear 15 Exempt On file
Digicomputing Systems INC 974559 Clear 14 Exempt On file
All Phase Electrical Incorporated 975841 Clear 14 Insured On file
L C Wires Company 981221 Clear 13 Insured On file
A V A 992005 Clear 12 Exempt On file
Commercial Audio Video Solutions INC 994846 Clear 12 Insured On file
Blue Wood Construction INC 1008141 Clear 11 Insured On file
Blackwell INC 1020112 Clear 10 Exempt On file
Foxtron Security INC 1022308 Clear 9 Insured On file
Actnet Advanced Technology Corporation 1034034 Clear 8 Insured On file
Data Path INC 1041107 Clear 8 Insured On file
Digital Disclosure 1053488 Clear 7 Insured On file
Optical Communications Corporation 1053400 Clear 7 Insured On file
Tech Hospitality INC 1057457 Clear 7 Insured On file
Richard Albert Electric INC 1071498 Clear 5 Exempt On file
J W INC 1086773 Clear 4 Insured On file
Accend Electric 1086962 Clear 4 Insured On file
Jaeckel Jordan 1088109 Clear 4 Exempt On file
Sf Security Camera Pro 1091642 Clear 4 Exempt On file
First Tech Networks INC 1100381 Clear 3 Insured On file
Cmd Low Voltage 1104247 Clear 3 Exempt On file
Jem North INC 1130450 Clear 1 Exempt On file

See all 59 low voltage contractors in San Francisco

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed low voltage contractors are in San Francisco?

CSLB's current public file lists 59 low voltage contractors with a San Francisco mailing address. 58 have a Clear status, and 86.4% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a low voltage contractor need in California?

In California this work generally calls for the C-7 Low Voltage Systems Contractor license (or a B license when it is part of a larger multi-trade job). Any job of $1,000 or more in labor and materials needs a licensed contractor. Read our guide to the $1,000 rule.

How do I check a low voltage contractor's workers' comp?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In San Francisco, 62.7% of low voltage contractors list a policy, 35.6% claim an exemption and 1.7% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.

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Guides