Shamrock Compressor Service, C-61/D-21 Machinery and Pumps Contractor in Corte Madera, CA
Shamrock Compressor Service operating as a sole owner holds an active California contractor license (CSLB #740443), valid through Sep 30, 2027. First issued in 1997, the license has been on the CSLB roster for 29 years. It carries a single CSLB classification: C-61/D-21 — Machinery and Pumps 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 Corte Madera, in Marin County, California.
- License Number
- 740443
- Issued
- Sep 15, 1997
- Status
- CLEAR
- Expires
- Sep 30, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100635142
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Oct 9, 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 Shamrock Compressor Service licensed in California?
Yes. Shamrock Compressor Service holds California Contractors State License Board license number 740443, which is active and in good standing. The license was first issued on September 15, 1997. It is valid through September 30, 2027.
What does Shamrock Compressor Service specialize in?
Shamrock Compressor Service is licensed for one CSLB classification: C-61/D-21 Machinery and Pumps Contractor.
Where is Shamrock Compressor Service headquartered?
Shamrock Compressor Service is headquartered at 1169 Meadowcrest Dr, Corte Madera, CA 94925, in Marin County, California.
Does Shamrock Compressor Service have an active surety bond on file with CSLB?
Yes. Shamrock Compressor Service has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Shamrock Compressor Service carry workers' compensation coverage?
Shamrock Compressor Service reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Shamrock Compressor Service's contractor license?
You can verify Shamrock Compressor Service's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=740443.
- License issuedSep 15, 1997
- Bond activeJan 1, 2023
- WC coverage startsOct 9, 2025
- License expiresSep 30, 2027
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