Rjohn Development Co
Verified against CSLB on · View on CSLB
License details
- License number
- 415555
- Status
- Active
- Classifications
- A · General EngineeringB · General BuildingC-16 · Fire ProtectionHAZ · Hazardous Substance Removal Certification
- Contractor bond
- $25,000
- Workers' comp
- Exempt
- License term on file
- December 18, 1981 – April 30, 2028
Business
- (650) 619 4986 (CSLB public record)
- 353 PETERSEN LANE, Petaluma, CA 94952Sonoma County
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Frequently asked questions
Is Rjohn Development Co licensed in California?
Yes. Rjohn Development Co holds an active California state contractor license (CSLB #415555), verified against the CSLB public record on June 17, 2026.
What is Rjohn Development Co's CSLB license number?
Rjohn Development Co's California contractor license number is 415555. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=415555
What kind of work is Rjohn Development Co licensed for?
Rjohn Development Co is classified under General Engineering (A) by the CSLB.
How do I verify Rjohn Development Co's license myself?
Look up license #415555 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=415555. 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.