11,375 CSLB-licensed C-20 contractors statewide.
CSLB classification C-20 (HVAC Contractor) is one of the California Contractors State License Board's licensed trades. This directory lists every active C-20 license issued by CSLB — 11,375 contractors statewide. Each profile shows license status, surety bond, and workers' compensation coverage, sourced directly from the CSLB public dataset.
Showing 1,251–1,300 of 11,816