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Best Licensed Well Drilling Contractors in Santa Cruz, CA

5 well drilling companies registered in Santa Cruz hold current CSLB licenses, verified against official records as of August 17, 2026. All 5 are listed below, ordered by workers' compensation cover and years licensed.

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

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  1. 1.Earth Flow Drilling Company

    ✓ CSLB License #800269 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2001
    Phone
    (831) 423-3288

  2. 2.Trinity Source Group Inc.

    ✓ CSLB License #913467 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2008
    Phone
    (831) 426-5600

  3. 3.Central Coast Drilling LLC

    ✓ CSLB License #979745 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2012
    Phone
    (831) 345-7062

  4. 4.Trinity Drilling Inc.

    ✓ CSLB License #1010926 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2016
    Phone
    (831) 426-5607

  5. 5.All Earth Geotechnical Engineering Inc.

    ✓ CSLB License #1116390 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2024
    Phone
    (831) 345-8852

Compare the top 5 at a glance

CompanyLicenseWorkers' compLicensed since
Earth Flow Drilling Company#800269On file2001
Trinity Source Group Inc.#913467On file2008
Central Coast Drilling LLC#979745On file2012
Trinity Drilling Inc.#1010926On file2016
All Earth Geotechnical Engineering Inc.#1116390On file2024

Santa Cruz County well drilling licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 13 active C-57 well drilling licenses in Santa Cruz County, 5 of them registered in Santa Cruz. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Santa Cruz license has been held 13 years, and the longest-standing one dates to 2001. 5 of Santa Cruz'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: 12 of the county's 13 licenses carry the same $25,000 bond California sets by statute. 1 county license reaches its 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.

Well Drilling Contractors in Santa Cruz: common questions

How many licensed well drilling contractors are there in Santa Cruz?

5 active C-57 well drilling licenses are registered in Santa Cruz, out of 13 across Santa Cruz County. 5 Santa Cruz-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 well drilling contractors?

Yes. California licenses contractors by classification, and C-57 is the CSLB classification that authorises this work. 5 active C-57 well drilling licenses are registered in Santa Cruz and 13 across Santa Cruz County, the longest-standing issued in 2001. Only CLEAR, unexpired licenses appear here.

How do I check a well drilling 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 Santa Cruz's 5 currently carry. 1 Santa Cruz County license expires within 90 days.

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