Cowan & Thompson Construction INC, A General Engineering Contractor in Martinez, CA
Cowan & Thompson Construction INC operating as a corporation holds California contractor license #595745, which is currently expired (lapsed Jun 30, 2026) and not valid to contract until it is renewed. First issued in 1990, the license has been on the CSLB roster for 36 years. It carries 2 CSLB classifications: A General Engineering Contractor and C-12 Earthwork and Paving Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Everest Premier Insurance Company. The business is based in Martinez, in Contra Costa County, California.
- License Number
- 595745
- Issued
- Jun 7, 1990
- Status
- CLEAR
- Expires
- Jun 30, 2026
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- SC681148
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Everest Premier Insurance Company
- Policy Number
- 7600027708261
- Effective
- Jan 1, 2026
- Expires
- Jan 1, 2027
This contractor has a compliance issue in its public CSLB record:
- License expired
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Cowan & Thompson Construction INC licensed in California?
Cowan & Thompson Construction INC previously held California Contractors State License Board license number 595745, but the license expired on June 30, 2026 and is not currently valid. It was first issued on June 7, 1990.
What does Cowan & Thompson Construction INC specialize in?
Cowan & Thompson Construction INC is licensed for 2 CSLB classifications: A General Engineering Contractor and C-12 Earthwork and Paving Contractor.
Where is Cowan & Thompson Construction INC headquartered?
Cowan & Thompson Construction INC is headquartered at P O Box 1514, Martinez, CA 94553, in Contra Costa County, California.
Does Cowan & Thompson Construction INC have an active surety bond on file with CSLB?
Yes. Cowan & Thompson Construction INC has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Cowan & Thompson Construction INC carry workers' compensation coverage?
Yes. Cowan & Thompson Construction INC carries active workers' compensation coverage through Everest Premier Insurance Company.
How do I verify Cowan & Thompson Construction INC's contractor license?
You can verify Cowan & Thompson Construction INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=595745.
- License issuedJun 7, 1990
- Bond activeJan 1, 2023
- WC coverage startsJan 1, 2026
- License expiredJun 30, 2026
- WC expiresJan 1, 2027
- Swinerton Builders#92Concord·A General Engineering Contractor
- Independent Construction Company#215611Concord·A General Engineering Contractor
- Lucas J V Paving INC#195560Martinez·A General Engineering Contractor
- G N Henley INC#373161Clayton·A General Engineering Contractor
- Severs Dennis#381569Byron·A General Engineering Contractor
- Mce Corporation#439295Concord·A General Engineering Contractor
- Silva Stacy L Construction#525155Byron·A General Engineering Contractor
- C M E Construction INC#524506Clayton·A General Engineering Contractor
Working a California job with Cowan & Thompson Construction INC, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Cowan & Thompson Construction INC? Claim or correct this profile