What insurance does a C-8 contractor need?

Workers' compensation is required by law once they have employees; the CSLB suspends a licence without it. Beyond that, producers usually place: Workers' comp; General liability with completed operations; Commercial auto and mixers; Inland marine for forms and pumps.

How many C-8 contractors are there in California?

5,231 active licences hold the C-8 classification as of 2026-09-06; 5,056 (97%) have workers' comp on file and 12 are exempt.

When do C-8 workers' comp policies renew?

1,076 renew within 90 days. January is the peak month.

Which WCIRB class codes apply to C-8 work?

Most often 5201 (Concrete or cement work NOC), 5222 (Concrete construction, bridges and culverts). The WCIRB assigns the class from the actual operations and payroll, so verify per account in the WCIRB classification search.

CSLB classification · Concrete/Masonry

C-8 Concrete Contractor

Name: C-8 Concrete Contractor: California licence and insurance statistics
Creator: Birdray
License: https://creativecommons.org/licenses/by/4.0/

Forms, pours and finishes concrete including foundations, slabs and flatwork.

5,231

Active licences

5,056

With workers' comp

97%

1,076

Renewing in 90 days

287

Lapsed or suspended

Exempt

New in 90 days

Coverages a producer should expect

›Workers' comp
›General liability with completed operations
›Commercial auto and mixers
›Inland marine for forms and pumps

WCIRB classes usually assigned

5201 Concrete or cement work NOC
5222 Concrete construction, bridges and culverts

Governing class depends on actual operations and payroll. Verify with the WCIRB classification search before quoting.

Carriers writing this class

Policies on file, statewide

C-8 workers' comp renewals by month, California

208

Sep

512

Oct

269

Nov

337

Dec

579

Jan

376

Feb

448

Mar

497

Apr

424

May

482

Jun

389

Jul

279

Aug

Sep

Counties with the most

Related classes in Concrete/Masonry

C-29 Masonry Contractor C-50 Reinforcing Steel Contractor C-51 Structural Steel Contractor D-06 Concrete-Related Services

Frequently asked

What does a C-8 licence allow a contractor to do?: Forms, pours and finishes concrete including foundations, slabs and flatwork.
What insurance does a C-8 contractor need?: Workers' compensation is required by law once they have employees; the CSLB suspends a licence without it. Beyond that, producers usually place: Workers' comp; General liability with completed operations; Commercial auto and mixers; Inland marine for forms and pumps.
How many C-8 contractors are there in California?: 5,231 active licences hold the C-8 classification as of 2026-09-06; 5,056 (97%) have workers' comp on file and 12 are exempt.
When do C-8 workers' comp policies renew?: 1,076 renew within 90 days. January is the peak month.
Which WCIRB class codes apply to C-8 work?: Most often 5201 (Concrete or cement work NOC), 5222 (Concrete construction, bridges and culverts). The WCIRB assigns the class from the actual operations and payroll, so verify per account in the WCIRB classification search.

Selling to C-8 contractors in California?

Birdray runs signal-timed outbound for one agency per territory: the companies behind these numbers, the person to email, and the renewal date, sent from your inbox. The database is free to search.

How the outbound works Search free

Sources: CSLB licence and workers' compensation records, California Secretary of State, OSHA, FMCSA, county permits. Aggregates only; no individual contractor appears on this page. "Active" means a CLEAR licence status. Renewal counts include policies on file with the CSLB expiring in the window. Refreshed weekly; this page as of 2026-09-06. Every field and its source →