Contractors installing a metal roof on a beachside structure
Data report · California Contractors State License Board · File of 10/3/2026

Half of California contractor licenses carry no workers’ comp

Every active California contractor license, by trade, county and business type: how many carry workers’ compensation and how many rely on an exemption that, with limited exceptions, ends for all licensed contractors on January 1, 2028. From CSLB’s own license file, refreshed from the source and free to cite.

By Sam Alishahi · CA Insurance License #4348151 · Data: CSLB License Master file, 10/3/2026

All active licenses

243,757 California contractor licenses, 10/3/2026

119,318licenses (49%) have a workers’ comp exemption on file instead of a policy
57%of 107,779 B General Building licenses are exempt
70%of sole-owner licenses are exempt, against 29% of corporations
48,099exempt licenses are due to expire, and come up for renewal, in 2028
By trade

The trades most likely to be exempt today

Share of active licenses in each classification with a workers’ comp exemption on file, for classifications with at least 1,000 active licenses. A license with several classifications counts in each.

Share of licenses with a workers’ comp exemption, by classificationB-2 Residential Remodeling73%B General Building57%C-54 Ceramic and Mosaic Tile53%C-33 Painting and Decorating53%C-6 Cabinet52%C-36 Plumbing51%C-10 Electrical50%C-60 Welding50%C-15 Flooring and Floor Covering48%C-5 Framing and Rough Carpentry47%C-53 Swimming Pool42%C-23 Ornamental Metal40%C-13 Fencing40%C-27 Landscaping39%C-7 Low Voltage Systems39%

What the data shows

49% of active California contractor licenses rely on an exemption. Of 243,757 licenses in CSLB’s file of 10/3/2026, 119,318 show an exemption, 119,782 show a workers’ comp policy, self-insurance or a leasing or staffing firm’s coverage, and 4,236 show no current workers’ comp on file. 2,960 licenses are suspended for workers’ comp.

The exemption is ending. SB 216 extends the workers’ comp requirement to every licensed contractor, regardless of classification and with limited exceptions, on January 1, 2028 (what changes and what to do). Of the exempt licenses, 12,217 expire in 2026, 59,002 in 2027 and 48,099 in 2028.

Where it’s already required, almost no one is exempt. CSLB requires C-20 Warm-Air Heating, C-39 Roofing, C-8 Concrete, C-22 Asbestos Abatement and C-61/D-49 tree service to carry workers’ comp even with no employees. Exemptions on file in those classes: C-20 17 of 12,179, C-39 1 of 5,760, C-8 16 of 5,609, C-22 1 of 322; D-49 9 of 2,831.

Exemptions are highest in B-2 Residential Remodeling (73%), B General Building (57%), C-54 Ceramic and Mosaic Tile (53%), C-33 Painting and Decorating (53%). Among the largest trades, B General Building is 57% exempt; see every trade below.

One-person businesses lean on the exemption. 70% of 113,956 sole-owner licenses are exempt, against 29% of 111,697 corporations. Among counties with at least 2,000 licenses, the exempt share runs from 43% in Fresno to 59% in El Dorado; Los Angeles County, with 49,723 licenses, is 50%.

By county

CountyActive licensesExemptExempt share
Los Angeles49,72324,83850%
San Diego21,61310,98751%
Orange20,1529,72448%
Riverside16,5497,90848%
San Bernardino11,2215,58650%
Sacramento9,9095,30654%
Santa Clara9,7904,35845%
Alameda7,5873,56747%
Contra Costa7,5873,70249%
Ventura6,5643,18849%
Sonoma5,5822,58346%
San Mateo4,7482,26048%
Placer4,7412,56254%
Fresno4,3501,88143%
San Francisco3,9151,91749%
Kern3,7641,76647%
San Joaquin3,6401,68346%
San Luis Obispo3,4261,96257%
Santa Barbara3,3931,58447%
Stanislaus3,0171,43247%
Monterey2,8301,27045%
Marin2,6961,31949%
El Dorado2,5651,51959%
Santa Cruz2,5561,38254%
Solano2,4481,21149%
Shasta1,8701,08058%
Butte1,8501,11060%
Nevada1,7921,03258%
Tulare1,76378545%
Napa1,15552946%
Yolo1,14056950%
Merced1,12349544%
Humboldt1,09965860%
Mendocino94752055%
Madera89847052%
Calaveras67940459%
Tuolumne64439862%
Sutter63932351%
San Benito61325441%
Lake55430856%
Yuba50827454%
Amador43528666%
Siskiyou42025561%
Imperial40915237%
Tehama39123159%
Kings30713042%
Plumas27816158%
Mono22411853%
Glenn18510557%
Mariposa18310356%
Inyo1779353%
Lassen17210360%
Del Norte1418762%
Trinity1217864%
Colusa945053%
Modoc613964%
Sierra362467%
Alpine201680%

Use this chart

Free to use with a link back. Paste this into your page or article:

Every classification

Every trade, sortable

Click a column to sort. “Covered” is a workers’ comp policy, self-insurance or a leasing or staffing firm’s coverage. D-subcategories are counted under C-61 Limited Specialty.

ClassTradeActive licensesExemptExempt shareCoveredNo current coverage on file
BGeneral Building107,77961,68357%44,5441,439
C-10Electrical29,06714,66550%14,025347
C-61Limited Specialty19,0616,68235%11,878442
C-36Plumbing18,2449,31351%8,676247
C-33Painting and Decorating16,1858,54753%7,321307
AGeneral Engineering15,2535,13634%9,837232
C-27Landscaping12,6204,94739%7,401266
C-20Warm-Air Heating, Ventilating and Air-Conditioning12,179170%11,738409
C-15Flooring and Floor Covering7,0923,38548%3,531160
C-54Ceramic and Mosaic Tile6,3783,38253%2,856129
C-39Roofing5,76010%5,525211
C-8Concrete5,609160%5,351228
C-7Low Voltage Systems4,9101,89139%2,913100
C-6Cabinet, Millwork and Finish Carpentry4,4652,34152%2,03975
C-9Drywall3,3401,27938%1,99465
C-17Glazing3,1501,11235%1,98052
C-53Swimming Pool2,9641,23642%1,68444
C-12Earthwork and Paving2,48291937%1,52827
C-16Fire Protection2,27173032%1,50925
C-29Masonry2,12377236%1,30346
C-13Fencing1,89275340%1,10032
C-21Building Moving/Demolition1,88953528%1,31731
C-35Lathing and Plastering1,88460132%1,24734
B-2Residential Remodeling1,7271,26073%4577
C-38Refrigeration1,65738023%1,24132
C-51Structural Steel1,59143027%1,11636
C-43Sheet Metal1,31625519%1,03224
C-2Insulation and Acoustical1,20425621%92817
C-46Solar1,18740134%76421
C-60Welding1,13256850%54416
C-23Ornamental Metal1,10944740%63921
C-5Framing and Rough Carpentry1,09351147%55028
C-42Sanitation System99034735%6348
C-45Sign88635840%50021
C-57Well Drilling73224333%4806
C-4Boiler, Hot Water Heating and Steam Fitting70510815%5859
C-49Tree and Palm6458513%54317
C-34Pipeline55514426%4007
C-32Parking and Highway Improvement51918636%3249
C-31Construction Zone Traffic Control4807916%3938
C-47General Manufactured Housing45820946%2415
C-28Lock and Security Equipment37613135%2378
C-22Asbestos Abatement32210%3182
C-55Water Conditioning31412640%1825
C-50Reinforcing Steel2636224%2001
C-11Elevator2234822%1673

Method and source

All figures come from the Contractors State License Board’s public License Master file (updated 10/3/2026), which lists every license that is current or expired but renewable, with its classifications, county and workers’ compensation coverage type. Cancelled, revoked and non-renewable licenses are not in the file. We count licenses, not people or companies; a license with several classifications counts once in each classification and once in the totals. County is the county of the license’s address of record; licenses with an out-of-state address are in the totals but not the county table. We keep only these counts, not names or addresses.

Free to use. Please cite “Alishahi Insurance analysis of CSLB license data” and link to this page. Download every classification, county and business type: CSV. Questions about the data: sam@alishahiinsurance.com.

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