Tri-Line Construction CO, B General Building Contractor in Burlingame, CA
Tri-Line Construction CO operating as a sole owner holds an active California contractor license (CSLB #683711), valid through Jan 31, 2028. First issued in 1994, the license has been on the CSLB roster for 32 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Burlingame, in San Mateo County, California.
- License Number
- 683711
- Issued
- Jan 21, 1994
- Status
- CLEAR
- Expires
- Jan 31, 2028
- Entity
- Sole Owner
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800205522
- Effective
- Oct 16, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jan 22, 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 Tri-Line Construction CO licensed in California?
Yes. Tri-Line Construction CO holds California Contractors State License Board license number 683711, which is active and in good standing. The license was first issued on January 21, 1994. It is valid through January 31, 2028.
What does Tri-Line Construction CO specialize in?
Tri-Line Construction CO is licensed for one CSLB classification: B General Building Contractor.
Where is Tri-Line Construction CO headquartered?
Tri-Line Construction CO is headquartered at 1325 Howard Ave #822, Burlingame, CA 94010, in San Mateo County, California.
Does Tri-Line Construction CO have an active surety bond on file with CSLB?
Yes. Tri-Line Construction CO has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Tri-Line Construction CO carry workers' compensation coverage?
Tri-Line Construction CO reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Tri-Line Construction CO's contractor license?
You can verify Tri-Line Construction CO's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=683711.
- License issuedJan 21, 1994
- Bond activeOct 16, 2025
- WC coverage startsJan 22, 2026
- License expiresJan 31, 2028
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