Koch Builder
Verified against CSLB on · View on CSLB
License details
- License number
- 821331
- Status
- Active
- Classifications
- A · General EngineeringB · General Building
- Contractor bond
- $25,000
- Workers' comp
- Exempt
- License term on file
- June 28, 2003 – June 30, 2027
Business
- (310) 404 9998 (CSLB public record)
- 318 AVENUE I 301, Redondo Beach, CA 90277Los Angeles County
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Frequently asked questions
Is Koch Builder licensed in California?
Yes. Koch Builder holds an active California state contractor license (CSLB #821331), verified against the CSLB public record on June 17, 2026.
What is Koch Builder's CSLB license number?
Koch Builder's California contractor license number is 821331. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=821331
What kind of work is Koch Builder licensed for?
Koch Builder is classified under General Engineering (A) by the CSLB.
How do I verify Koch Builder's license myself?
Look up license #821331 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=821331. This page reflects the CSLB public record as of June 17, 2026.
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.