Carrierintel
AT

A-1 TRANSIT CORPORATION

Carrierintel Safety Score: 69/100. 63 inspection violations in 12 months. Last inspected Oct 2026.

DOT 943618MC 404792ActiveMotor CarrierInterstateZURICH AMERICAN INSURANCE COMPANYMARATHON, WI

COMPANY

Authority since
2001-04-24
MCS-150
2025-05-02 · 12,055,467 mi (2024)
Fleet
398 units · 1143 trailers · 241 drivers
Annual mileage (VMT)
12,055,467 mi (2024)

ADDRESS

Physical
205 NORTH STREET
MARATHON, WI 54448
Mailing
205 NORTH STREET PO BOX 100
MARATHON, WI 54448

CONTACT

Phone
7158704692
Email
bill.sauter@countymaterials.com

OFFICERS

Primary Officer
BILL SONNENTAG
Title
PRESIDENT

OPERATION & CARGO

Operation classification
Authorized For Hire
Specialty
Auto Transport
Cargo types
9
General FreightMetal: Sheets, Coils, RollsMotor VehiclesLogs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsCommodities Dry BulkConstructionOther: CONCRETE PRODUCTS
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
306 mo
Active authority
INSURANCE
1 active
ZURICH AMERICAN INSURANCE COMPANY
RISK GRADE
Moderate Risk
2 risk factors · 4 strengths
OOS RATE
15.6%
32 / 205 inspections

Carrierintel Safety Score

Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.

69
out of 100
Fair
Markers: OOS inspection Crash Fatality

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Declared (MCS-150)
398 power units
Unique power units seen
50
+ 46 trailer VINs
Inspections
57
Discrepancy
0.1x

Moderate Risk

2 risk factors · 4 strengths · 7 data points

SAFETY PERFORMANCE

Crash Record
156 crashes · 4 fatal · 64 with injuries · 147 tow-away
Clean Inspection Rate
84% — 173 clean of 205 inspections
Out-of-Service Rate
15.6% — driver OOS 2 insp., vehicle OOS 31 insp.

COMPLIANCE & AUTHORITY

USDOT Registration
Status: Active
Operating Authority
Active: Motor Carrier
Out-of-service orders
None on record
Authority Events
3 historical event(s) on file
MCS-150 Filing
Last filed 2025-05-02

INSURANCE

Active Coverage
1 policy(ies) on file · total max coverage $1,000,000

SUMMARY

Elevated OOS rate 15% (last 24 mo)
3 injury crashes in the last 24 months
Low crash rate (1.6 per 100 trucks/yr)
84% clean inspections
Active insurance on file
Coverage $1.0M

INDUSTRY REPORTS

  • ELD Tampering — Carriers cited for ELD tampering under 49 CFR § 395.8(e), by carrier and state.
  • Top Violations — The ten most-cited FMCSA violation codes of the last 30 days.
  • Phantom Fleets — Declared power units against the vehicles seen at roadside inspections.
  • English Proficiency — Carriers whose drivers were cited under 49 CFR § 391.11(b)(2), by carrier and state.
  • Methodology — Where the data comes from and how the Safety Score and Risk Grade are built.

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