Grindstone Engineering, A General Engineering Contractor in Jamul, CA
Grindstone Engineering operating as a sole owner holds an active California contractor license (CSLB #1148046), valid through Dec 31, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in Jamul, in San Diego County, California.
- License Number
- 1148046
- Issued
- Dec 22, 2025
- Status
- CLEAR
- Expires
- Dec 31, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 101005839
- Effective
- Oct 22, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 11, 2025
- Expires
- —
Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Grindstone Engineering licensed in California?
Yes. Grindstone Engineering holds California Contractors State License Board license number 1148046, which is active and in good standing. The license was first issued on December 22, 2025. It is valid through December 31, 2027.
What does Grindstone Engineering specialize in?
Grindstone Engineering is licensed for one CSLB classification: A General Engineering Contractor.
Where is Grindstone Engineering headquartered?
Grindstone Engineering is headquartered at 13491 Highway 94, Jamul, CA 91935, in San Diego County, California.
Does Grindstone Engineering have an active surety bond on file with CSLB?
Yes. Grindstone Engineering has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Grindstone Engineering carry workers' compensation coverage?
Grindstone Engineering reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Grindstone Engineering's contractor license?
You can verify Grindstone Engineering's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1148046.
- Bond activeOct 22, 2025
- WC coverage startsNov 11, 2025
- License issuedDec 22, 2025
- License expiresDec 31, 2027
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