Rjohn Development CO, A General Engineering Contractor in Petaluma, CA
Rjohn Development CO operating as a sole owner holds an active California contractor license (CSLB #415555), valid through Apr 30, 2028. First issued in 1981, the license has been on the CSLB roster for 45 years. It carries 3 CSLB classifications: A General Engineering Contractor, B General Building Contractor, and C-16 Fire Protection Contractor. Records show an active surety bond on file with Hudson Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Petaluma, in Sonoma County, California.
- License Number
- 415555
- Issued
- Dec 18, 1981
- Status
- CLEAR
- Expires
- Apr 30, 2028
- Entity
- Sole Owner
- Surety
- Hudson Insurance Company
- Bond Number
- 30046976
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Apr 20, 2026
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Rjohn Development CO licensed in California?
Yes. Rjohn Development CO holds California Contractors State License Board license number 415555, which is active and in good standing. The license was first issued on December 18, 1981. It is valid through April 30, 2028.
What does Rjohn Development CO specialize in?
Rjohn Development CO is licensed for 3 CSLB classifications: A General Engineering Contractor, B General Building Contractor, and C-16 Fire Protection Contractor.
Where is Rjohn Development CO headquartered?
Rjohn Development CO is headquartered at 353 Petersen Lane, Petaluma, CA 94952, in Sonoma County, California.
Does Rjohn Development CO have an active surety bond on file with CSLB?
Yes. Rjohn Development CO has an active California contractor surety bond filed with Hudson Insurance Company.
Does Rjohn Development CO carry workers' compensation coverage?
Rjohn Development CO reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Rjohn Development CO's contractor license?
You can verify Rjohn Development CO's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=415555.
- License issuedDec 18, 1981
- Bond activeJan 1, 2023
- WC coverage startsApr 20, 2026
- License expiresApr 30, 2028
- Masterson Bryan Enterprises#271933Petaluma·A General Engineering Contractor
- Able Maintenance INC#312844Santa Rosa·A General Engineering Contractor
- Holden Ralph & CO#307640Healdsburg·A General Engineering Contractor
- Argonaut Constructors INC#171432Santa Rosa·A General Engineering Contractor
- Curran Environmental Services INC#269122Petaluma·A General Engineering Contractor
- E K Excavating INC#275372Sonoma·A General Engineering Contractor
- Walters K G Construction CO INC#301314Santa Rosa·A General Engineering Contractor
- Eddinger Enterprises INC#301487Healdsburg·B General Building Contractor
Working a California job with Rjohn Development CO, 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 Rjohn Development CO? Claim or correct this profile