Tetra Tech Bas INC, A General Engineering Contractor in Diamond Bar, CA
Tetra Tech Bas INC operating as a corporation holds an active California contractor license (CSLB #572017), valid through Jun 30, 2027. First issued in 1989, the license has been on the CSLB roster for 37 years. It carries 2 CSLB classifications: A General Engineering Contractor and C-57 Well Drilling Contractor. Records show an active surety bond on file with Fidelity and Deposit Company of Maryland and a previously-filed workers' compensation policy with Safety National Casualty Corporation that is no longer active. The business is based in Diamond Bar, in Los Angeles County, California.
- License Number
- 572017
- Issued
- Jun 28, 1989
- Status
- CLEAR
- Expires
- Jun 30, 2027
- Entity
- Corporation
- Surety
- Fidelity and Deposit Company of Maryland
- Bond Number
- 09318281
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Safety National Casualty Corporation
- Policy Number
- LDC4068970
- Effective
- Oct 1, 2024
- Expires
- Oct 1, 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 Tetra Tech Bas INC licensed in California?
Yes. Tetra Tech Bas INC holds California Contractors State License Board license number 572017, which is active and in good standing. The license was first issued on June 28, 1989. It is valid through June 30, 2027.
What does Tetra Tech Bas INC specialize in?
Tetra Tech Bas INC is licensed for 2 CSLB classifications: A General Engineering Contractor and C-57 Well Drilling Contractor.
Where is Tetra Tech Bas INC headquartered?
Tetra Tech Bas INC is headquartered at 21700 Copley Dr, Diamond Bar, CA 91765, in Los Angeles County, California.
Does Tetra Tech Bas INC have an active surety bond on file with CSLB?
Yes. Tetra Tech Bas INC has an active California contractor surety bond filed with Fidelity and Deposit Company of Maryland.
Does Tetra Tech Bas INC carry workers' compensation coverage?
Tetra Tech Bas INC has a previously-filed workers' compensation policy with Safety National Casualty Corporation that is no longer active.
How do I verify Tetra Tech Bas INC's contractor license?
You can verify Tetra Tech Bas INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=572017.
- License issuedJun 28, 1989
- Bond activeJan 1, 2023
- WC coverage startsOct 1, 2024
- WC expiredOct 1, 2026
- License expiresJun 30, 2027
- Brandel Don Plumbing INC#176778Paramount·A General Engineering Contractor
- Farwest Corrosion Control Company#248232Downey·A General Engineering Contractor
- Thomas Charles E Company INC#302015Gardena·A General Engineering Contractor
- Withers William#322187Santa Clarita·A General Engineering Contractor
- Vulcan Materials Company Western Division#49763Irwindale·A General Engineering Contractor
- Alcorn Fence Company#122954Duarte·A General Engineering Contractor
- S E Pipe Line Construction Company#122218Santa Fe Springs·A General Engineering Contractor
- Acco Engineered Systems#120696Pasadena·A General Engineering Contractor
Working a California job with Tetra Tech Bas INC, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Tetra Tech Bas INC? Claim or correct this profile