Birdray

Carrier

National Casualty Co.: California contractor workers' comp book

587 active California contractors name National Casualty Co. as their workers' comp carrier. 153 of those policies renew in the next 90 days. Renewals peak in October. The book leans general building, roofing, electrical. Aggregates from CSLB certificates; no policyholder is named on this page.

587
Policies on file
117
Renewing in 60 days
153
Renewing in 90 days
27
Large accounts
Birdray size tier
90
Mid-size accounts
0
Counties with 100+

National Casualty Co. contractor renewals by month

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

27
Sep
79
Oct
35
Nov
41
Dec
71
Jan
44
Feb
37
Mar
62
Apr
35
May
50
Jun
46
Jul
37
Aug

Trades in the book

  1. General Building220
  2. Roofing94
  3. Electrical75
  4. General Engineering66
  5. Plumbing51
  6. Painting/Finish48
  7. Landscaping35
  8. HVAC29
  9. Flooring24
  10. Fire Protection23
  11. Solar18
  12. Tile18
  13. Concrete/Masonry14

Counties where it writes the most

Linked counties have a carrier-in-county page

  1. Los Angeles County74
  2. San Diego County49
  3. Orange County47
  4. Santa Clara County36
  5. Riverside County34
  6. Alameda County27
  7. County25
  8. Contra Costa County24
  9. Sonoma County24
  10. San Mateo County22
  11. San Bernardino County19
  12. Sacramento County19

Cities where it writes the most

  1. San Jose15
  2. San Diego14
  3. Sacramento13
  4. Santa Rosa12
  5. Bakersfield10
  6. Clovis10
  7. Napa9
  8. Redwood City9
  9. Long Beach8
  10. Riverside8
  11. Escondido7
  12. Santa Cruz7

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 National Casualty 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 National Casualty Co. insure for workers' comp?
587 active licensed contractors list National Casualty Co. as their workers' comp carrier on the CSLB record.
When do National Casualty Co.'s contractor policies renew?
117 expire within 60 days and 153 within 90. October is the peak month with 79.
Which trades does National Casualty Co. write most?
General Building (220), Roofing (94), Electrical (75), General Engineering (66)
Where in California is National Casualty Co.'s contractor book concentrated?
Los Angeles County (74), San Diego County (49), Orange County (47), Santa Clara County (36)
All carriers →X-dates statewide →
Selling to National Casualty 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 →