California Work Comp Class Codes
Need to find California workers compensation class codes? California is under the jurisdiction of the California Workers Compensation Insurance Rating Bureau (WCIRB), and uses the California Workers Compensation Uniform Statistical Reporting Plan. See the applicable lists on the bulleted items below.
If you have a classification question or believe you have been incorrectly classified, please see The Employer’s Workers Compensation Classification Guide.
You can view the following lists that are published online by the governing authorities:
- List of standard classifications in numerical order (WCIRB)
- List of standard classifications in alphabetical order (WCIRB)
- WCIRB Classification Search (WCIRB)
- California workers compensation rates (California Department of Insurance)
- Download of Workers Compensation Code List in .XLS format (California Department of Insurance)
Download the California Business List
Looking to maximize your California WC marketing efforts? Download the California Business List. Search, filter, and target specific businesses by workers compensation code, industry, city, state, and more!
Press “Control” + “F” to find a specific code number or keyphrase below.
Disclaimer for California Workers’ Compensation Class Codes
Disclaimer: These Classification Codes and Phraseology are WCIRB Copyrighted materials, used with permission of WCIRB according to their terms of use. This is a representative list of WCIRB Classification Codes and Phraseology which may be used for reference purposes only and may or may not be current. This list should not be relied on by any end users as current information, with current Classification Codes and Phraseology obtainable directly from WCIRB. WCIRB shall have no liability to any end user for the use or inability to use the Classification List and Phraseology provided on this website.
State-by-State Reference Guide
Looking for workers’ compensation codes for a state other than California? Click on a state below to view the correlating index of works’ comp class codes.
You can also find individual pages for NCCI workers’ compensation codes and NAICS codes by using the search bar below.
List of California Workers’ Compensation Class Codes
This page contains an exhaustive California workers compensation code list, utilizing paginated tabs. Tab 0 contains the (Four digit) CA workers compensation codes that begin with “0,” Tab 1 contains CA workers compensation codes that begin with “1,” tab 2 contains CA workers compensation codes that begin with “2,” and so forth. On mobile devices, tabs are shown on the bottom of the page.
About the WCIRB
The WCIRB produces the following resources to assist parties involved in California workers compensation.
- California Basic Underwriting Manual – You can order this manual from WCIRB by filling out the following form.
- California Workers Compensation Experience Rating Plan – You can obtain an electronic version of the most recent edition of this publication by filling out this form.
- California Workers Compensation Insurance Forms Manual – You can obtain this manual by filling out the following form.
- You can obtain access to other WCIRB products and services by visiting: http://www.wcirb.com/products-and-services/product-list.
Top 10 California Workers Compensation Companies By Premiums Written
Need a California workers compensation quote? Below is a list of the top 10 workers compensation insurance providers in the state of California by premiums written.
| Company Name | Premiums Written | Premiums Earned | Loss Ratio | Loss & Cost Containment Ratio | Market Share | Cumulative Market Share |
| STATE COMPENSATION INS FUND | 1,528,879 | 1,686,279 | 81.55% | 96.53% | 13.39% | 13.39% |
| BERKSHIRE HATHAWAY GRP | 1,135,946 | 1,099,688 | 49.88% | 59.55% | 9.95% | 23.34% |
| TRAVELERS GRP | 708,486 | 705,965 | 50.69% | 64.58% | 6.20% | 29.54% |
| AMTRUST NGH GRP | 700,510 | 660,505 | 44.80% | 55.85% | 6.13% | 35.68% |
| HARTFORD FIRE & CAS GRP | 622,063 | 627,040 | 77.27% | 86.51% | 5.45% | 41.12% |
| ZURICH INS GRP | 590,838 | 591,631 | 88.37% | 107.49% | 5.17% | 46.30% |
| AMERICAN INTL GRP | 570,361 | 571,155 | 63.70% | 80.91% | 5.00% | 51.29% |
| AMERICAN ASSETS GRP | 533,859 | 530,186 | 43.55% | 54.46% | 4.68% | 55.97% |
| FAIRFAX FIN GRP | 425,616 | 426,759 | 31.56% | 38.62% | 3.73% | 59.70% |
| EMPLOYERS HOLDINGS GRP | 414,552 | 416,793 | 60.85% | 72.17% | 3.63% | 63.33% |
| **STATE TOTAL** | 11,418,599 | 11,325,122 | 62.82% | 74.84% | 100.00% | 100.00% |
Source: National Association of Insurance Commissioners
California Premium Rate Ranking
The state of California has the highest workers’ compensation premiums rates, according to the Oregon premium rate ranking study. They have maintained the same position as the previous rate ranking, which was also 1st. Workers’ compensation premiums in California cost 176% of the national median.
California Workers’ Compensation Rates by Class Code
The estimated California workers’ compensation rates by class code below are part of the Oregon workers’ compensation premium rate ranking study. You can view their study by clicking on the images below.
California Workers Compensation Rates: 0005 0016 0037
California Workers Compensation Class Codes