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Best Licensed Tree Service Contractors in Sonoma, CA

5 tree service companies registered in Sonoma hold current CSLB licenses, verified against official records as of August 17, 2026. All 5 are listed below, ordered by years licensed.

How we chose: We identified 5 companies registered in Sonoma. 5 passed license verification. All 5 are listed below. Our methodology

We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.

  1. 1.Sonoma Valley Tree Service

    ✓ CSLB License #731536 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1997
    Phone
    (707) 227-9282

  2. 2.Second Nature Tree Service

    ✓ CSLB License #861924 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2005
    Phone
    (707) 227-2303

  3. 3.De Anda Landscaping Inc.

    ✓ CSLB License #999752 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2015
    Phone
    (707) 953-3784

  4. 4.Ironbark Arborists & Forestry

    ✓ CSLB License #1072799 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2021
    Phone
    (707) 756-0490

  5. 5.Black Oak Tree Care

    ✓ CSLB License #1153287 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2026
    Phone
    (707) 230-8285

Compare the top 5 at a glance

CompanyLicenseWorkers' compLicensed since
Sonoma Valley Tree Service#731536On file1997
Second Nature Tree Service#861924On file2005
De Anda Landscaping Inc.#999752On file2015
Ironbark Arborists & Forestry#1072799On file2021
Black Oak Tree Care#1153287On file2026

Sonoma County tree licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 95 active C-49 and D-49 tree licenses in Sonoma County, 5 of them registered in Sonoma. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Sonoma license has been held 11 years, and the longest-standing one dates to 1997. 5 of Sonoma's 5 licenses (100.0%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 94 of the county's 95 licenses carry the same $25,000 bond California sets by statute. 8 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.

Tree Service Contractors in Sonoma: common questions

How many licensed tree contractors are there in Sonoma?

5 active C-49 and D-49 tree licenses are registered in Sonoma, out of 95 across Sonoma County. 5 Sonoma-registered companies passed our license verification, and all 5 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license tree service contractors?

Yes. California licenses contractors by classification, and C-49 or D-49 is the CSLB classification that authorises this work. 5 active C-49 and D-49 tree licenses are registered in Sonoma and 95 across Sonoma County, the longest-standing issued in 1997. Only CLEAR, unexpired licenses appear here.

How do I check a tree contractor's license in California?

Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which 5 of Sonoma's 5 currently carry. 8 Sonoma County licenses expire within 90 days.

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