Birdray

Carrier

Amtrust Insurance Co.: California contractor workers' comp book

1,936 active California contractors name Amtrust Insurance Co. as their workers' comp carrier, 2% of every contractor policy on file. 426 of those policies renew in the next 90 days. Renewals peak in January. The book leans general building, hvac, plumbing. Aggregates from CSLB certificates; no policyholder is named on this page.

1,936
Policies on file
2% of the market
300
Renewing in 60 days
426
Renewing in 90 days
34
Large accounts
Birdray size tier
174
Mid-size accounts
5
Counties with 100+

Amtrust Insurance Co. contractor renewals by month

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

85
Sep
171
Oct
137
Nov
151
Dec
249
Jan
149
Feb
160
Mar
166
Apr
156
May
153
Jun
151
Jul
97
Aug

Trades in the book

  1. General Building475
  2. HVAC344
  3. Plumbing296
  4. Electrical280
  5. Landscaping137
  6. Tile135
  7. Flooring107
  8. Painting/Finish65
  9. General Engineering65
  10. Pool62
  11. Glazing39
  12. Concrete/Masonry28
  13. Fire Protection26

Counties where it writes the most

Linked counties have a carrier-in-county page

  1. Los Angeles County370
  2. San Diego County199
  3. Orange County184
  4. Riverside County136
  5. Santa Clara County118
  6. Contra Costa County80
  7. Sacramento County76
  8. Alameda County73
  9. San Bernardino County64
  10. Ventura County49
  11. San Mateo County46
  12. Sonoma County42

Cities where it writes the most

  1. San Jose59
  2. San Diego58
  3. Los Angeles51
  4. Sacramento37
  5. Bakersfield31
  6. San Francisco24
  7. Fresno24
  8. El Cajon22
  9. Escondido20
  10. Anaheim20
  11. Riverside15
  12. Gilroy15

What this means for a producer

Every policy in this book has a public expiration date and a class of business. A producer with a competing market for general building can work Amtrust Insurance Co.'s renewals month by month: the chart above is the calendar, the county pages are the territory, and the licence record supplies the policy number and the date. Birdray adds what the record leaves out: the person to write to, what changed at the business, and the timing, then sends the first email from your inbox 60 days out.

Frequently asked

How many California contractors does Amtrust Insurance Co. insure for workers' comp?
1,936 active licensed contractors list Amtrust Insurance Co. as their workers' comp carrier on the CSLB record, about 2% of all contractor policies on file.
When do Amtrust Insurance Co.'s contractor policies renew?
300 expire within 60 days and 426 within 90. January is the peak month with 249.
Which trades does Amtrust Insurance Co. write most?
General Building (475), HVAC (344), Plumbing (296), Electrical (280)
Where in California is Amtrust Insurance Co.'s contractor book concentrated?
Los Angeles County (370), San Diego County (199), Orange County (184), Riverside County (136)
All carriers →X-dates statewide →
Selling to Amtrust Insurance Co. policyholders 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 →