Simonson Clifton O, A General Engineering Contractor in Ventura, CA
Simonson Clifton O operating as a sole owner holds an active California contractor license (CSLB #965312), valid through Nov 30, 2027. First issued in 2011, the license has been on the CSLB roster for 15 years. It carries 2 CSLB classifications: A General Engineering Contractor and C-61/D-9 Drilling, Blasting and Oil Field Work Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in Ventura, in Ventura County, California.
- License Number
- 965312
- Issued
- Sep 7, 2011
- Status
- CLEAR
- Expires
- Nov 30, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100468225
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Oct 7, 2025
- 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 Simonson Clifton O licensed in California?
Yes. Simonson Clifton O holds California Contractors State License Board license number 965312, which is active and in good standing. The license was first issued on September 7, 2011. It is valid through November 30, 2027.
What does Simonson Clifton O specialize in?
Simonson Clifton O is licensed for 2 CSLB classifications: A General Engineering Contractor and C-61/D-9 Drilling, Blasting and Oil Field Work Contractor.
Where is Simonson Clifton O headquartered?
Simonson Clifton O is headquartered at 1746-F S Victoria Ave #245, Ventura, CA 93003, in Ventura County, California.
Does Simonson Clifton O have an active surety bond on file with CSLB?
Yes. Simonson Clifton O has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Simonson Clifton O carry workers' compensation coverage?
Simonson Clifton O reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Simonson Clifton O's contractor license?
You can verify Simonson Clifton O's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=965312.
- License issuedSep 7, 2011
- Bond activeJan 1, 2023
- WC coverage startsOct 7, 2025
- License expiresNov 30, 2027
- Ost Trucks and Cranes INC#402528Ventura·A General Engineering Contractor
- Tank Team INC#512835Camarillo·A General Engineering Contractor
- Keystone General Construction CO#509108Moorpark·A General Engineering Contractor
- Webster Cameron Construction#464258Camarillo·A General Engineering Contractor
- American Contractors#489371Westlake Village·A General Engineering Contractor
- Dakota Drilling & Concrete INC#477175Oxnard·A General Engineering Contractor
- Walt Construction Corporation#310770Simi Valley·A General Engineering Contractor
- Case Engineering and Laboratory Incorporated#389107Ventura·A General Engineering Contractor
Working a California job with Simonson Clifton O, 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 Simonson Clifton O? Claim or correct this profile