Birdray

CSLB classification · Fire Protection

C-16 Fire Protection Contractor

Designs and installs fire sprinkler and suppression systems.

2,203
Active licences
1,449
With workers' comp
66%
399
Renewing in 90 days
36
Lapsed or suspended
713
Exempt
28
New in 90 days

Coverages a producer should expect

  • ›Workers' comp
  • ›General liability with completed operations
  • ›Professional liability for system design
  • ›Commercial auto

WCIRB classes usually assigned

  • 5183 Plumbing, including sprinkler installation

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

Carriers writing this class

Policies on file, statewide

  1. State Compensation Insurance Fund261
  2. Insurance Co. Of The West132
  3. Pie Insurance Co.93
  4. Technology Insurance Co. Inc64
  5. Zurich American Insurance Co.47
  6. Markel Insurance Co.47
  7. Endurance Assurance Corporation42
  8. Travelers Property Casualty Co. Of America39
  9. Security National Insurance Co.38
  10. Wesco Insurance Co.34

C-16 workers' comp renewals by month, California

70
Sep
221
Oct
77
Nov
93
Dec
172
Jan
91
Feb
123
Mar
133
Apr
100
May
111
Jun
99
Jul
72
Aug
14
Sep

Counties with the most

  1. Los Angeles County579
  2. Orange County194
  3. San Bernardino County122
  4. Riverside County119
  5. County103
  6. Alameda County103
  7. San Francisco County95
  8. San Diego County91
  9. Santa Clara County75
  10. Sacramento County66
  11. Contra Costa County61
  12. San Mateo County59

Frequently asked

What does a C-16 licence allow a contractor to do?
Designs and installs fire sprinkler and suppression systems.
What insurance does a C-16 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; Professional liability for system design; Commercial auto.
How many C-16 contractors are there in California?
2,203 active licences hold the C-16 classification as of 2026-09-06; 1,449 (66%) have workers' comp on file and 713 are exempt.
When do C-16 workers' comp policies renew?
399 renew within 90 days. October is the peak month.
Which WCIRB class codes apply to C-16 work?
Most often 5183 (Plumbing, including sprinkler installation). The WCIRB assigns the class from the actual operations and payroll, so verify per account in the WCIRB classification search.
Selling to C-16 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 worksSearch 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 →

C-16 Fire Protection Contractor: Insurance and WCIRB Classes | Birdray