SHAMROCK MATERIALS INC
AUTHORIZEDDBA: SHAMROCK MATERIALS OF COTATI
USDOT
2644567
MC Number
N/A
Fleet Size
65
Total Drivers
28
Last updated: March 16, 2026
Broker verification report
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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. No crashes on file.
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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
No insurance records on file with FMCSA.
Crash history
0
Total Crashes
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Frequently asked questions
Is SHAMROCK MATERIALS INC authorized to operate?
Yes. SHAMROCK MATERIALS INC (USDOT #2644567) currently holds "AUTHORIZED" status with FMCSA. They're registered as an intrastate only (non-hazmat) carrier.
What is SHAMROCK MATERIALS INC's safety record?
SHAMROCK MATERIALS INC has 0 inspections on file and no crashes on record. They do not show a formal FMCSA safety rating in CarrierOwl's current data. CarrierOwl is validating BASIC percentile display against the official FMCSA SMS portal, so brokers should verify current BASIC percentiles 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.