Mammoth Welding INC, C-51 Structural Steel Contractor in Mammoth Lakes, CA
Mammoth Welding INC operating as a corporation holds an active California contractor license (CSLB #860670), valid through May 31, 2028. First issued in 2005, the license has been on the CSLB roster for 21 years. It carries a single CSLB classification: C-51 — Structural Steel Contractor. Records show an active surety bond on file with Nationwide Mutual Insurance Company and a previously-filed workers' compensation policy with Omaha National Casualty Company that is no longer active. The business is based in Mammoth Lakes, in Mono County, California.
- License Number
- 860670
- Issued
- Jun 21, 2005
- Status
- CLEAR
- Expires
- May 31, 2028
- Entity
- Corporation
- Surety
- Nationwide Mutual Insurance Company
- Bond Number
- 7900440680
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Omaha National Casualty Company
- Policy Number
- ONCC1701280101
- Effective
- Jun 16, 2025
- Expires
- Jun 16, 2026
This contractor has a compliance issue in its public CSLB record:
- No active workers' comp on file
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Mammoth Welding INC licensed in California?
Yes. Mammoth Welding INC holds California Contractors State License Board license number 860670, which is active and in good standing. The license was first issued on June 21, 2005. It is valid through May 31, 2028.
What does Mammoth Welding INC specialize in?
Mammoth Welding INC is licensed for one CSLB classification: C-51 Structural Steel Contractor.
Where is Mammoth Welding INC headquartered?
Mammoth Welding INC is headquartered at P O Box 33, Mammoth Lakes, CA 93546, in Mono County, California.
Does Mammoth Welding INC have an active surety bond on file with CSLB?
Yes. Mammoth Welding INC has an active California contractor surety bond filed with Nationwide Mutual Insurance Company.
Does Mammoth Welding INC carry workers' compensation coverage?
Mammoth Welding INC has a previously-filed workers' compensation policy with Omaha National Casualty Company that is no longer active.
How do I verify Mammoth Welding INC's contractor license?
You can verify Mammoth Welding INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=860670.
- License issuedJun 21, 2005
- Bond activeJan 1, 2023
- WC coverage startsJun 16, 2025
- WC expiredJun 16, 2026
- License expiresMay 31, 2028
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