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ARGONAUT CONSTRUCTORS
DBA: 94372854
Santa Rosa, CA
CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating, crash records and out-of-service rates checked
FMCSA status: Active registration · no operating authority · DOT 2805086
Active
No Safety Rating
Broker Vetting Summary
Key signals from current FMCSA records
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
7.7% OOS · 20 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Active FMCSA registration, but no active for-hire operating authority on record
- Registered with FMCSA as a private carrier — not registered to haul other companies' freight for hire
- No active insurance filing found on record
- Driver out-of-service rate 20.0% — above the 5.5% national average
- Vehicle out-of-service rate 8.3% — below the 20.7% national average
- 20 FMCSA inspections on record
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
2805086
Safety Rating
Not Rated
Operation Classification
Private (property)
MCS-150 Filed
May 21, 2024
FMCSA Registration
September 29, 2015
Annual Mileage
660,000 mi (2025)
Contact Information
Address
360 Sutton Pl, Santa Rosa, CA 95407-8121
Phone
Email
Owner / Officer
Trevor Stewart
Officer 2
Paul Donaldson
Cargo Types
Building MaterialsMachinery/Large ObjectsLiquids/GasesConstruction MaterialsOther Cargo
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
20
Driver Inspections
11
Vehicle Inspections
17
Out-of-Service Violations
3
Violations by Category
Vehicle Maintenance9
Unsafe Driving2
Hours of Service0
OOS Rates vs. National Average
Driver OOS Rate20.0% · national avg 5.5%
⚠ Above national average (14.5pp higher)
Vehicle OOS Rate8.3% · national avg 20.7%
✓ Below national average
7.7% of 13 inspections in the last 24 months put a driver or vehicle out of service —
19th percentile among carriers with 10–24 inspections (lower is better).
CarrierChk calculation from FMCSA roadside inspection records, not an FMCSA score.
Inspection Trend by Year
2026
2025
2024
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Vehicle Maintenance
3 of 12 inspections
Unsafe Driving
1 of 13 inspections
Hours of Service
0 of 13 inspections
Driver Fitness
2 of 13 inspections
Controlled Substances
0 of 13 inspections
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
CA18
Fleet & Equipment (15)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~12
of 81 reported to FMCSA
Trailers
~3
seen at inspection
Equipment types observed
Truck
7
Chassis / Incomplete
3
Flatbed
1
Full Trailer
1
Straight Truck
1
Tractor
1
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2018 International MA025 | Truck · Class 7 | 3HAMMMMN0JL212206 | 3 | 1 |
| 2019 Ford F-550 | Chassis / Incomplete · Class 5 | 1FDUF5GY0KDA01701 | 2 | — |
| 2022 Peterbilt 567 | Truck · Class 8 | 1NPCL40X5ND807132 | 2 | — |
| 2024 International MV607 | Truck · Class 6 | 3HAEUMML3RL567711 | 2 | — |
| Willi | Full Trailer | 109FS1429NU021856 | 1 | 1 |
| 2023 Ford F-550 | Chassis / Incomplete · Class 5 | 1FDUF5GT9PDA08562 | 1 | — |
| 2018 Chevrolet Silverado | Chassis / Incomplete · Class 2 | 1GB1CYEG6JF104656 | 1 | — |
| 2019 International MA025 | Truck · Class 6 | 1HTMMMML1KH611373 | 1 | — |
| 2019 International MA025 | Truck · Class 6 | 1HTMMMMLXKH611372 | 1 | — |
| 2015 Trail King Industries | Flatbed · 48 ft | 1TKA04822FM033898 | 1 | — |
Show all 15 units
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2019 Kenworth T880 | Tractor · Class 8 | 1XKZD40X0KJ367272 | 1 | — |
| Kw | Straight Truck | 2NK3HM6X5RM343372 | 1 | — |
| Inge | — | 344802 | 1 | — |
| 2019 International MA025 | Truck · Class 6 | 3HAMMMML4KL413798 | 1 | — |
| 2019 International MA025 | Truck · Class 7 | 3HAMMMMN7KL775304 | 1 | — |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (20)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| October 1, 2026 | UFY1000703 | CA, CA | III | — | — | — | Straight Truck |
KW |
2NK3HM6X5RM343726 |
CA 19255C4 |
| February 4, 2026 | UFY1000354 | US-101 SB MARIN SCALES, CA | II | 1 | — | — | Straight Truck |
INTERNATIONAL |
3HAEUMML3RL567711 |
CA 07842A4 |
| 392.2-SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other | Dangerous Driving | ||||||||
| November 3, 2025 | UE1B002098 | S/B MARIN SCALES, CA | II | 1 | — | — | Straight Truck |
PETERBILT |
1NPCL40X5ND807132 |
CA 96396F3 |
| 383.23A2-LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | License-related: High | ||||||||
| October 6, 2025 | UE9B003351 | CORDELIA IF, CA | II | — | — | — | Straight Truck |
KW |
2NK3HM6X5RM343372 |
CA 19255C4 |
| September 15, 2025 | UD4G004016 | CORDELIA IF, CA | III | 1 | — | — | Straight Truck |
INTERNATIONAL |
3HAEUMML3RL567711 |
CA 07842A4 |
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | |||||||||
| September 12, 2025 | UE74003073 | CORDELIA IF, CA | II | — | — | — | Straight Truck |
INTERNATIONAL |
3HAMMMMN0JL212206 |
CA 40939H2 |
| July 10, 2025 | NDZ5005847 | CORDELIA IF, CA | I | — | — | — | Truck Tractor Semi-trailer |
KENWORTH TRAIL KING INDUSTRIES |
1XKZD40X0KJ367272 1TKA04822FM033898 |
CA 9F01553 CA 4NE8995 |
| July 10, 2025 | NF9T001306 | CORDELIA IF, CA | I | 4 | 3 | — | Straight Truck Trailer |
INTERNATIONAL WILLI |
3HAMMMMN0JL212206 109FS1429NU021856 |
CA 40939H2 CA 4TZ3549 |
| 391.41APC | OOSMedical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Medical Certificate | ||||||||
| 393.43DBMA | OOSBrake - Breakaway not attached to the towing vehicle | Brakes All Others | ||||||||
| 393.9A-LTSI | OOSLighting - Turn signal - Any inoperative on the rearmost vehicle. | Lighting | ||||||||
| 396.3A1-BALAC | Brake - Audible air leak from a brake chamber | Brakes All Others | ||||||||
| July 3, 2025 | UE74002911 | SOUTH SACRAMENTO AREA, CA | II | — | — | — | Straight Truck |
PETERBILT |
1NPCL40X5ND807132 |
CA 96396F3 |
| June 17, 2025 | UFY1000220 | US-101 SB MARIN SCALES, CA | I | 1 | — | — | Straight Truck |
CHEVROLET |
1GB1CYEG6JF104656 |
CA 39269K2 |
| 392.2-SLLDL | State/Local Laws - Misc. driver's license violation | |||||||||
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 11, 2026.
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