Prosch Engineering, A General Engineering Contractor in Redwood City, CA
Prosch Engineering operating as a sole owner holds an active California contractor license (CSLB #716009), valid through Jan 31, 2027. First issued in 1995, the license has been on the CSLB roster for 31 years. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with Western Surety Company and active workers' compensation coverage from Everest Premier Insurance Company. The business is based in Redwood City, in San Mateo County, California.
- License Number
- 716009
- Issued
- Dec 6, 1995
- Status
- CLEAR
- Expires
- Jan 31, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67402493
- Effective
- May 25, 2025
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Everest Premier Insurance Company
- Policy Number
- 7600026226251
- Effective
- Sep 23, 2025
- Expires
- Sep 23, 2026
This contractor is verified, with no adverse conditions in the current CSLB record.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Prosch Engineering licensed in California?
Yes. Prosch Engineering holds California Contractors State License Board license number 716009, which is active and in good standing. The license was first issued on December 6, 1995. It is valid through January 31, 2027.
What does Prosch Engineering specialize in?
Prosch Engineering is licensed for one CSLB classification: A General Engineering Contractor.
Where is Prosch Engineering headquartered?
Prosch Engineering is headquartered at 335 Jeter St, Redwood City, CA 94062, in San Mateo County, California.
Does Prosch Engineering have an active surety bond on file with CSLB?
Yes. Prosch Engineering has an active California contractor surety bond filed with Western Surety Company.
Does Prosch Engineering carry workers' compensation coverage?
Yes. Prosch Engineering carries active workers' compensation coverage through Everest Premier Insurance Company.
How do I verify Prosch Engineering's contractor license?
You can verify Prosch Engineering's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=716009.
- License issuedDec 6, 1995
- Bond activeMay 25, 2025
- WC coverage startsSep 23, 2025
- WC expiresSep 23, 2026
- License expiresJan 31, 2027
- Jmb Construction INC#715324South San Francisco·A General Engineering Contractor
- Eki Environment & Water INC#717340Daly City·A General Engineering Contractor
- Bragato Paving Company INC#711832San Carlos·A General Engineering Contractor
- Gary Pollack Construction#703296Redwood City·A General Engineering Contractor
- K J Woods Construction INC#701797South San Francisco·A General Engineering Contractor
- Langley Hill Quarry#702033Woodside·A General Engineering Contractor
- Amherst INC#689517Burlingame·A General Engineering Contractor
- Birkeland Corporation#689129San Bruno·A General Engineering Contractor
Working a California job with Prosch Engineering, 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 Prosch Engineering? Claim or correct this profile