Mainline Security Inc
Verified against CSLB on · View on CSLB
License details
- License number
- 838913
- Status
- Active
- Classifications
- C-28 · Lock and Security Equipment
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- May 22, 2004 – May 31, 2028
Business
- (415) 398 6161 (CSLB public record)
- 617 SEVENTH ST, San Francisco, CA 94103San Francisco County
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Frequently asked questions
Is Mainline Security Inc licensed in California?
Yes. Mainline Security Inc holds an active California state contractor license (CSLB #838913), verified against the CSLB public record on June 17, 2026.
What is Mainline Security Inc's CSLB license number?
Mainline Security Inc's California contractor license number is 838913. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=838913
What kind of work is Mainline Security Inc licensed for?
Mainline Security Inc is classified under Lock and Security Equipment (C-28) by the CSLB.
How do I verify Mainline Security Inc's license myself?
Look up license #838913 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=838913. 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.