Mammoth Concrete Pumping, C-61/D-6 Concrete-Related Services Contractor in Bishop, CA
Mammoth Concrete Pumping operating as a sole owner holds an active California contractor license (CSLB #890640), valid through Apr 30, 2028. First issued in 2007, the license has been on the CSLB roster for 19 years. It carries a single CSLB classification: C-61/D-6 — Concrete-Related Services 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 Bishop, in Inyo County, California.
- License Number
- 890640
- Issued
- Feb 5, 2007
- Status
- CLEAR
- Expires
- Apr 30, 2028
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100242457
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Mar 16, 2026
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Mammoth Concrete Pumping licensed in California?
Yes. Mammoth Concrete Pumping holds California Contractors State License Board license number 890640, which is active and in good standing. The license was first issued on February 5, 2007. It is valid through April 30, 2028.
What does Mammoth Concrete Pumping specialize in?
Mammoth Concrete Pumping is licensed for one CSLB classification: C-61/D-6 Concrete-Related Services Contractor.
Where is Mammoth Concrete Pumping headquartered?
Mammoth Concrete Pumping is headquartered at 874 Lee Street, Bishop, CA 93514, in Inyo County, California.
Does Mammoth Concrete Pumping have an active surety bond on file with CSLB?
Yes. Mammoth Concrete Pumping has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Mammoth Concrete Pumping carry workers' compensation coverage?
Mammoth Concrete Pumping reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Mammoth Concrete Pumping's contractor license?
You can verify Mammoth Concrete Pumping's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=890640.
- License issuedFeb 5, 2007
- Bond activeJan 1, 2023
- WC coverage startsMar 16, 2026
- License expiresApr 30, 2028
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