A-1 TRANSIT CORPORATION

DOT# 943618 MC# 404792CARRIER

ACTIVE

Trust Score

93 / 100

A Excellent

Components

Compliance · 40% 100

Safety · 35% 90

Insurance · 25% 85

No active cargo insurance on file

Confidence: high · based on FMCSA safety, insurance & authority data How is this calculated?

Overview

Address

Physical

205 NORTH STREET

MARATHON, WI 54448

View on Google Maps ↗

Mailing

205 NORTH STREET PO BOX 100

MARATHON, WI 54448

Contact

Phone: (715) 870-4692

Fax: (877) 651-5045

Email: bill.sauter@countymaterials.com

Company Officers

BILL SONNENTAG

TIM SONNENTAG

Business Info

Organization: CORPORATION

HazMat: HazMat Carrier

Fleet

398

Power Units

241

Drivers

Equipment Breakdown

Owned Trucks132

Owned Tractors266

Authority

Status: ACTIVE

FMCSA add date: Mar 28, 2001

Contract authority: Apr 24, 2001

Authority History (2)

Authority Type	Action	Date
CONTRACT	INVOLUNTARY REVOCATION → DISCONTINUED REVOCATION	Dec 18, 2006 → Jan 4, 2007
MOTOR PROPERTY CONTRACT CARRIER	GRANTED	Apr 24, 2001

Cargo Types

General FreightMetal/Sheets/CoilsMotor VehiclesLogs/Poles/LumberBuilding MaterialsMachinery/Large ObjectsDry Bulk

Active Certifications

Property

MCS-150

Last updated: May 2, 2025

Mileage: 12,055,467 (2024)

Operation Classification

AUTHORIZED FOR HIRE

Carrier Operation

Interstate

Related Companies

Company	DOT#	MC#	Location	Status	Linked By
COUNTY TRANSIT INC.	381219	396036	MARATHON, WI	ACTIVE	EmailDomain

Recent Changes

Safetytotal crashes: 12 → 13Jun 29, 2026

New Carrierphy state: → WIJun 16, 2026

Removedphy state: WI → (removed)Jun 15, 2026

Safetytotal crashes: 11 → 12May 16, 2026

Safetytotal crashes: 10 → 11May 11, 2026

Safety

Out-of-Service Rates

Driver125 inspections

0.0%

6.0%

Carrier National avg

Vehicle79 inspections

22.8%

22.6%

Carrier National avg

Hazmat

No hazmat inspections

Overall125 inspections

14.4%

Carrier

Crash Summary

Fatal

Injury

13.0

per 1M miles

Towaway

Total

BASIC Violations

Unsafe Driving55

Driver Fitness0

Hours of Service2

Drug / Alcohol0

Vehicle Maintenance57

Safety Measurement System (SMS)

FMCSA's official per-BASIC roadside-performance measures over the trailing 24 months, computed from the 121 inspections below. A measure of 0 means no recorded violations in that BASIC — not necessarily a strong safety record on a small sample. FMCSA does not publish peer-group percentiles for property carriers, so the underlying measures — not percentile rankings — are shown; Hazmat Compliance and Crash Indicator are not published.

SMS Inspections (24 mo)

121

Total

Driver OOS

Vehicle OOS

BASIC Measures

Unsafe Driving0.3120 insp w/ viol

Hours of Service0.022 insp w/ viol

Driver Fitness0.051 insp w/ viol

Controlled Substances0.000 insp w/ viol

Vehicle Maintenance4.5733 insp w/ viol

Insurance

$1,000,000

BIPD Coverage

—

Cargo Coverage

1 policy on file1 active

Type	Status	Insurer	Policy #	Coverage	Effective	Expires	Form
BIPD	Active	ZURICH AMERICAN INSURANCE COMPANY	BAP8196362	$1,000,000	Oct 1, 2006	—	91X

Insurance History (3)

Type	Insurer	Status	Coverage	Effective	Cancelled
CARGO · F34	TRAVELERS PROPERTY CASUALTY CO. OF AMERICA	CancelledCANCEL	$750,000	May 1, 2007	May 19, 2018
BIPD · F91X	ZURICH AMERICAN INSURANCE COMPANY	ReplacedTERM/REPL	$750,000	Jan 1, 2001	Oct 1, 2006
BIPD · F91X	ZURICH AMERICAN INSURANCE COMPANY	CancelledTERM/CANCL	$750,000	Jan 1, 2001	Jan 12, 2007

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