C-7 Low voltage systems contractors in California

Low-voltage wiring: phone, data, sound, security and similar systems (not fire alarms). California has 4,922 licenses with this classification on file, 4,666 of them active and 256 suspended.

By city

Cities with at least 3 active licenses, by the address on file with the state. Contractors often work well beyond their home city.

Recently suspended

Licenses with this classification that the state's file shows as suspended, most recently updated first.