Birdray

Licensed contractors in Ontario, California

Ontario has 874 active licensed contractors, 480 of them carrying workers' comp. 91 renew in the next 90 days and 13 have lapsed or suspended coverage; 18 were licensed in the last 90 days. The most common carriers are State Compensation Insurance Fund, Insurance Co. Of The West, Pie Insurance Co.. From CSLB records, refreshed weekly.

874
Active licences
480
With workers' comp
55% of active
91
Renewing in 90 days
39 within 30
13
Lapsed or suspended
374 exempt
18
New in 90 days
26
Bond suspensions

Workers' comp renewals by month, Ontario

Policies on file with the CSLB expiring in each of the next 12 months.

24
Sep
38
Oct
24
Nov
21
Dec
57
Jan
37
Feb
56
Mar
54
Apr
36
May
41
Jun
39
Jul
16
Aug
2
Sep

Top carriers

By policies on file

  1. State Compensation Insurance Fund124
  2. Insurance Co. Of The West39
  3. Pie Insurance Co.29
  4. Omaha National Casualty Co.16
  5. Travelers Property Casualty Co. Of America14
  6. Hartford Casualty Insurance Co.14
  7. Wesco Insurance Co.14
  8. Employers Preferred Insurance Co.12
  9. Continental Casualty Co.12
  10. Zurich American Insurance Co.11

Trades in Ontario

Linked trades have their own page

  1. General Building319
  2. Electrical140
  3. General Engineering62
  4. Plumbing54
  5. HVAC54
  6. Painting/Finish54
  7. Landscaping34
  8. Concrete/Masonry33
  9. Flooring29
  10. Roofing27
  11. Glazing21
  12. Tile18
  13. Earthwork/Paving16

Other cities in San Bernardino County

  1. Rancho Cucamonga915
  2. San Bernardino810
  3. Fontana792
  4. Upland640
  5. Chino623
  6. Hesperia575

Size and risk

large20
mid74
small780
high risk19
medium risk10
low risk845

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 licensed contractors are in Ontario?
874 contractors hold an active CSLB licence with a Ontario address as of 2026-09-06, out of 918 licences on record.
How many Ontario contractors carry workers' comp?
480 (55%) have a workers' comp policy on file. 374 filed an exemption, which means they report no employees, and 13 are lapsed or suspended.
When do workers' comp policies in Ontario renew?
39 renew within 30 days, 72 within 60 and 91 within 90. January is the peak month with 57 expirations.
Which insurers write the most contractors in Ontario?
State Compensation Insurance Fund (124), Insurance Co. Of The West (39), Pie Insurance Co. (29)
How do I check whether a Ontario contractor has workers' comp?
Look the licence up on the CSLB site; the record shows the carrier, policy number and expiration, or an exemption. A contractor with employees must carry coverage; an exemption means they told the CSLB they have none.
X-dates in San Bernardino County →For agencies in San Bernardino County →
Selling to 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 →