SHAMROCK MATERIALS INC
AUTHORIZEDDBA: SHAMROCK MATERIALS OF COTATI
USDOT
2644567
MC Number
N/A
Fleet Size
65
Total Drivers
28
FMCSA-derived snapshot updated: August 30, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
Broker verification report
Want a verification report for this carrier?
Request your first CarrierOwl report free for SHAMROCK MATERIALS INC. We will use this DOT profile to show authority, insurance, safety, contact consistency, and timestamped notes your team can save before sending a rate con.
Safety overview
SHAMROCK MATERIALS INC is a mid-size intrastate only (non-hazmat) motor carrier based in PETALUMA, California, operating 65 power units with 28 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. The current imported FMCSA crash snapshot returned no matching crash rows for this carrier; this is not proof that no crash occurred.
Truck insurance quotes
Need insurance for this carrier?
Enter your details and we'll check whether an eligible licensed insurance partner is available. Submission does not guarantee a quote or coverage.
BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Company details
- Entity Type
- N/A
- Carrier Operation
- Intrastate Only (Non-Hazmat)
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
0
Total
—
Driver %
Insurance on file
CarrierOwl's current public FMCSA filing snapshot returned no matching insurance rows. This does not prove that no private coverage exists; verify current requirements and filings directly with FMCSA and the carrier.
Crash history
0
Total Crashes
Similar carriers in California
Other carriers in the same state with a similar fleet size.
SULLIVAN SOLAR POWER OF CALIFORNIA INC
RIVER SPRINGS CHARTER SCHOOL INC
ELECTRIC TECH CONSTRUCTION INC
HORIZON LIGHTING INC
EDCO WASTE SERVICES LLC
Frequently asked questions
Is SHAMROCK MATERIALS INC authorized to operate?
CarrierOwl's FMCSA-derived snapshot for SHAMROCK MATERIALS INC (USDOT #2644567) shows "AUTHORIZED" status. The snapshot lists them as an intrastate only (non-hazmat) carrier. Verify the current official record with FMCSA before booking a load.
What is SHAMROCK MATERIALS INC's safety record?
SHAMROCK MATERIALS INC has 0 inspections in CarrierOwl's current imported snapshot; the snapshot returned no matching crash rows. They do not show a formal FMCSA safety rating in CarrierOwl's current data. A zero result is limited to the dataset and snapshot window. Verify current BASIC percentiles and crash information directly with FMCSA before relying on them.
How many trucks does SHAMROCK MATERIALS INC operate?
SHAMROCK MATERIALS INC operates 65 power units with 28 drivers on file. That puts them in the mid-size range.
Does SHAMROCK MATERIALS INC transport hazardous materials?
No. SHAMROCK MATERIALS INC does not have a hazardous materials flag in the FMCSA database.
Where is SHAMROCK MATERIALS INC located?
SHAMROCK MATERIALS INC is based in PETALUMA, California at 181 LYNCH CREEK WY 200, 949758044. Phone: (707) 781-9000.