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California contractor license
SLR International Corporation
SLR International Corporation of Walnut Creek holds California license 991727 (A General Engineering, HAZ Hazardous Substance Removal Certification). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Mar 31, 2028.
Licensed 12 years, longer than 54% of 199 active Walnut Creek general contractors.
Active
SLR International Corporation, Walnut Creek
- Workers' comp on file ended Oct 8, 2026.
- License
- 991727
- Class
- A General Engineering; HAZ Hazardous Substance Removal Certification
- Expires
- Mar 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Oct 8, 2026
CSLB file dated Nov 1, 2026
From the CSLB file dated Nov 1, 2026. Not a consumer report; check the board before you hire.
Has the board taken action on this license?
None in the CSLB file dated Nov 1, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Hartford Fire Insurance Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredAmerican Casualty Company Of Reading PA, from Jan 10, 2026, to Oct 8, 2026
Who is on this license?
- Officer
- Robyn L. VespermanSince Mar 28, 2014
- CEO and president
- Kevin G. RattueSince Mar 28, 2014
- Responsible managing employee
- Mohammad R. BazarganiSince Mar 28, 2014
What work does this license cover?
Issued Mar 28, 2014.
- A General Engineering
- HAZ Hazardous Substance Removal Certification
Which other Walnut Creek businesses hold A General Engineering?
- Brosamer & Wall IncLicensed since 2012
- MercozaLicensed since 2013
- Next Phase Construction IncLicensed since 2015
- A A Custom Construction Services A California Joint VentureLicensed since 2017
- Konstructo IncLicensed since 2017
General Contractors in Walnut CreekCalifornia general contractors
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
- Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.
If the license is lapsed
- Don't sign or pay a deposit until the CSLB shows the license active again.
- Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Nov 1, 2026)
- Contractors State License Board (CSLB)