Public CSLB records

Drill Sub INC, A General Engineering Contractor in Corona, CA

License #937432·Corporation·Corona, Riverside County
Download PDF
Owed money by Drill Sub INC? File a 20-day preliminary notice to keep your lien rights.Send a notice
Summary

Drill Sub INC operating as a corporation holds California contractor license #937432, which is currently expired (lapsed Sep 30, 2026) and not valid to contract until it is renewed. First issued in 2009, the license has been on the CSLB roster for 17 years. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Clear Spring Property and Casualty Company. The business is based in Corona, in Riverside County, California.

Business Information
Address
P O Box 79411
Corona, CA 92877
License Details & Classifications
License Number
937432
Issued
Sep 3, 2009
Status
CLEAR
Expires
Sep 30, 2026
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
100139928
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Clear Spring Property and Casualty Company
Policy Number
CSWC01851503
Effective
Dec 1, 2025
Expires
Dec 1, 2026
Alert

This contractor has a compliance issue in its public CSLB record:

  • License expired
License StatusInactive / Expired
Contractor BondOn file
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Drill Sub INC licensed in California?

Drill Sub INC previously held California Contractors State License Board license number 937432, but the license expired on September 30, 2026 and is not currently valid. It was first issued on September 3, 2009.

What does Drill Sub INC specialize in?

Drill Sub INC is licensed for one CSLB classification: A General Engineering Contractor.

Where is Drill Sub INC headquartered?

Drill Sub INC is headquartered at P O Box 79411, Corona, CA 92877, in Riverside County, California.

Does Drill Sub INC have an active surety bond on file with CSLB?

Yes. Drill Sub INC has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Drill Sub INC carry workers' compensation coverage?

Yes. Drill Sub INC carries active workers' compensation coverage through Clear Spring Property and Casualty Company.

How do I verify Drill Sub INC's contractor license?

You can verify Drill Sub INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=937432.

Activity Timeline
  1. License issuedSep 3, 2009
  2. Bond activeJan 1, 2023
  3. WC coverage startsDec 1, 2025
  4. License expiredSep 30, 2026
  5. WC expiresDec 1, 2026
Other contractors in Riverside County
California lien & payment resources

Working a California job with Drill Sub INC, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

Own Drill Sub INC? Claim or correct this profile