✓ Powered by Official State Licensing Board Data

License is active

Source: Contractors State License Board (CSLB)

Expires in 17 days

Licensed

Current and in good standing

Bonded

$25,000 surety bond

Insured

Workers' comp coverage on file

Clean record

No complaints or disciplinary actions

🛡️

Hiring this contractor?

Get alerts if their license status changes.

🏢

Is this your business?

Claim your profile to manage your listing.

ONE SOURCE ENGINEERING INC

License Number
755696
State
California
Status
active
Business Type
Corporation
Address
50 WOODSIDE PLAZA #116 REDWOOD CITY, CA, 94061 San Mateo County
Phone
(650) 325 7171

License Dates

Issued

10/27/1998

Expires

04/30/2026

Expires in 17 days

Reissued

04/24/2004

CSLB Last Updated

02/25/2026

License Classifications

C-4 Boiler, Hot Water Heating and Steam Fitting

Personnel & Officers

HOLAK BETSY DIANNE

Officer

Active

HOLAK JAMES ANTHONY

Responsible Managing Officer

C-4
Active

WILLIAMS FARRIN LYNN

Responsible Managing Employee

Former

Qualifier bond: WESTERN SURETY COMPANY

Contractor Bond

Bonded

Amount: $25,000

Company: AMERICAN CONTRACTORS INDEMNITY COMPANY

Bond #100121407

Effective: 01/01/2023

Workers' Compensation

Has policy

Carrier: STATE COMPENSATION INSURANCE FUND

Policy #9170135

Effective: 11/29/2016

Expires: 11/29/2026

CSLB designation: Workers' Compensation Insurance

Complaints & Disciplinary History

No disciplinary actions on file

This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.

Verify this record on the official state licensing board

View on Contractors State License Board (CSLB) →

Learn how to verify contractor licenses in California

California licensing guide →

Data sourced from official state licensing board records. Always confirm critical information directly with the state board.

Verify Another Contractor