Birdray

General Building contractors in Ontario, California

Ontario has 319 active general building contractors, 155 with workers' comp on file. 32 renew in the next 90 days; 4 have lapsed or suspended coverage. State Compensation Insurance Fund writes the most of them. Renewals peak in March. From CSLB records as of 2026-09-06.

319
Active licences
155
With workers' comp
49% of active
32
Renewing in 90 days
14 within 30
4
Lapsed or suspended
159 exempt
5
New in 90 days
11
Bond suspensions

General Building workers' comp renewals by month, Ontario

7
Sep
14
Oct
8
Nov
9
Dec
15
Jan
10
Feb
21
Mar
13
Apr
11
May
11
Jun
14
Jul
6
Aug

Top carriers

  1. State Compensation Insurance Fund42
  2. Pie Insurance Co.14
  3. Insurance Co. Of The West12
  4. Omaha National Casualty Co.8
  5. Zurich American Insurance Co.7
  6. Everest Premier Insurance Co.5
  7. National Fire Insurance Co. Of Hartford5
  8. Endurance Assurance Corporation4
  9. Continental Casualty Co.4
  10. Norguard Insurance Co.4

Other trades in Ontario

  1. Electrical140

Licence classes held

CSLB classification codes on these licences

  1. B319
  2. C1034
  3. A23
  4. C-812
  5. C2010
  6. C369
  7. C548
  8. C-78
  9. C338
  10. C277
  11. C396
  12. C156

What changed in Ontario this month

Recent changes in state records, one line each, company names withheld on public pages. Birdray users see the company, the contact and the timing.

  • Coverage lapsedGeneral BuildingWorkers' comp coverage lapsed; licence suspended2026-09-06
  • Coverage lapsedSpecialtyWorkers' comp coverage lapsed; licence suspended2026-09-06
  • Coverage lapsedGeneral BuildingWorkers' comp coverage lapsed; licence suspended2026-09-06
  • Coverage lapsedGeneral EngineeringWorkers' comp coverage lapsed; licence suspended2026-09-06
  • Coverage lapsedGeneral BuildingWorkers' comp coverage lapsed; licence suspended2026-09-06
  • Coverage lapsedGeneral BuildingWorkers' comp coverage lapsed; licence suspended2026-09-06
  • Coverage lapsedElectricalWorkers' comp coverage lapsed; licence suspended2026-09-06
  • Coverage lapsedSpecialtyWorkers' comp coverage lapsed; licence suspended2026-09-06

Frequently asked

How many general building contractors are in Ontario?
319 hold an active CSLB licence classed as General Building with a Ontario address as of 2026-09-06.
How many carry workers' comp?
155 (49%) have a policy on file; 159 are exempt and 4 lapsed or suspended.
When do general building policies in Ontario renew?
14 within 30 days, 23 within 60, 32 within 90. The peak month is March with 21.
Which carriers write general building contractors in Ontario?
State Compensation Insurance Fund (42), Pie Insurance Co. (14), Insurance Co. Of The West (12)
General Building across San Bernardino County →X-dates →
Selling to general building contractors in Ontario?
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 →