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Tree Service contractors in Sonoma County

Workers' comp renewals, lapses, and carriers for tree service contractors licensed in Sonoma County, California. Aggregate figures from CSLB and state records, as of 2026-09-02.

23
Active licenses
19
With workers' comp
83% of active
2
Renewing in 90 days
2 within 60
1
Lapsed or suspended
4 exempt

Workers' comp renewals by month, Sonoma County

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

2
Sep
1
Jan
1
Feb
2
Mar
1
Apr
2
May
3
Jun
1
Jul
5
Aug

Top carriers

  1. State Compensation Insurance Fund11
  2. Insurance Company Of The West2
  3. Midwest Employers Casualty Company1
  4. Omaha National Casualty Company1
  5. Praetorian Insurance Company1
  6. American Casualty Company Of Reading Pa1
  7. Wellfleet Insurance Company1
  8. Arch Insurance Company1

Top cities

  1. Santa Rosa10
  2. Sebastopol3
  3. Graton2
  4. Rohnert Park2
  5. Petaluma1
  6. Windsor1
  7. Sonoma1
  8. Bodega1
  9. Cazadero1
  10. Annapolis1

Trades

  1. Tree Service23
  2. Specialty4
  3. Landscaping4
  4. General Engineering2
  5. Earthwork/Paving1

Size and risk

large2
mid4
small17
high risk0
medium risk1
low risk22

Sources: CSLB license and workers' compensation records, CA Secretary of State, OSHA, FMCSA. Aggregates only; no individual contractor data appears on this page. Size and risk tiers are Birdray estimates.

Frequently asked

How many tree service contractors are licensed in Sonoma County?
23 hold an active CSLB license classed as Tree Service in Sonoma County as of 2026-09-02.
How many carry workers' compensation insurance?
19 have a workers' comp policy on file with the CSLB; 4 filed an exemption and 1 are lapsed or suspended.
When do their policies renew?
2 renew within 60 days and 2 within 90 days. The month-by-month curve on this page shows the next 12 months.
Which carriers write the most tree service contractors here?
STATE COMPENSATION INSURANCE FUND (11), INSURANCE COMPANY OF THE WEST (2), MIDWEST EMPLOYERS CASUALTY COMPANY (1)
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Tree Service contractors in Sonoma County: workers' comp renewals & carriers | Birdray