Thompson Mark Masonry Construction, C-29 Masonry Contractor in Upland, CA
Thompson Mark Masonry Construction operating as a sole owner holds an active California contractor license (CSLB #451376), valid through Apr 30, 2028. First issued in 1984, the license has been on the CSLB roster for 42 years. It carries a single CSLB classification: C-29 — Masonry Contractor. Records show an active surety bond on file with Merchants Bonding Company (mutual) and an exempt workers' compensation status (no employees on payroll). The business is based in Upland, in San Bernardino County, California.
- License Number
- 451376
- Issued
- Jan 12, 1984
- Status
- CLEAR
- Expires
- Apr 30, 2028
- Entity
- Sole Owner
- Surety
- Merchants Bonding Company (mutual)
- Bond Number
- 101841727
- Effective
- Apr 8, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Apr 9, 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 Thompson Mark Masonry Construction licensed in California?
Yes. Thompson Mark Masonry Construction holds California Contractors State License Board license number 451376, which is active and in good standing. The license was first issued on January 12, 1984. It is valid through April 30, 2028.
What does Thompson Mark Masonry Construction specialize in?
Thompson Mark Masonry Construction is licensed for one CSLB classification: C-29 Masonry Contractor.
Where is Thompson Mark Masonry Construction headquartered?
Thompson Mark Masonry Construction is headquartered at 1343 N North Hills Dr, Upland, CA 91784, in San Bernardino County, California.
Does Thompson Mark Masonry Construction have an active surety bond on file with CSLB?
Yes. Thompson Mark Masonry Construction has an active California contractor surety bond filed with Merchants Bonding Company (mutual).
Does Thompson Mark Masonry Construction carry workers' compensation coverage?
Thompson Mark Masonry Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Thompson Mark Masonry Construction's contractor license?
You can verify Thompson Mark Masonry Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=451376.
- License issuedJan 12, 1984
- Bond activeApr 8, 2026
- WC coverage startsApr 9, 2026
- License expiresApr 30, 2028
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