Black Mammoth Concrete INC, C-8 Concrete Contractor in San Bernardino, CA
Black Mammoth Concrete INC operating as a corporation holds an active California contractor license (CSLB #1133805), valid through Mar 31, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. It carries a single CSLB classification: C-8 — Concrete Contractor. Records show an active surety bond on file with Nationwide Mutual Insurance Company and active workers' compensation coverage from Markel Insurance Company. The business is based in San Bernardino, in San Bernardino County, California.
- License Number
- 1133805
- Issued
- Mar 3, 2025
- Status
- CLEAR
- Expires
- Mar 31, 2027
- Entity
- Corporation
- Surety
- Nationwide Mutual Insurance Company
- Bond Number
- 7901210124
- Effective
- Feb 7, 2026
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Markel Insurance Company
- Policy Number
- MWC0234874
- Effective
- Feb 6, 2026
- Expires
- Feb 6, 2027
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 Black Mammoth Concrete INC licensed in California?
Yes. Black Mammoth Concrete INC holds California Contractors State License Board license number 1133805, which is active and in good standing. The license was first issued on March 3, 2025. It is valid through March 31, 2027.
What does Black Mammoth Concrete INC specialize in?
Black Mammoth Concrete INC is licensed for one CSLB classification: C-8 Concrete Contractor.
Where is Black Mammoth Concrete INC headquartered?
Black Mammoth Concrete INC is headquartered at 222 South Rancho Ave Spc 37, San Bernardino, CA 92410, in San Bernardino County, California.
Does Black Mammoth Concrete INC have an active surety bond on file with CSLB?
Yes. Black Mammoth Concrete INC has an active California contractor surety bond filed with Nationwide Mutual Insurance Company.
Does Black Mammoth Concrete INC carry workers' compensation coverage?
Yes. Black Mammoth Concrete INC carries active workers' compensation coverage through Markel Insurance Company.
How do I verify Black Mammoth Concrete INC's contractor license?
You can verify Black Mammoth Concrete INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1133805.
- License issuedMar 3, 2025
- WC coverage startsFeb 6, 2026
- Bond activeFeb 7, 2026
- WC expiresFeb 6, 2027
- License expiresMar 31, 2027
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