A-1 TRANSIT CORPORATION
DOT# 943618
MC# 404792CARRIER
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
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
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 | EmailDomainPhone |
Recent Changes
Safetytotal crashes: 9 → 10Apr 30, 2026
Safetytotal crashes: 10 → 9Apr 25, 2026
Safety
Out-of-Service Rates
Driver125 inspections
0.8%
5.9%
Carrier
National avg
Vehicle79 inspections
21.5%
22.6%
Carrier
National avg
Hazmat
No hazmat inspections
Crash Summary
0
Fatal
2
Injury
10.0
per 1M miles
9
Towaway
10
Total
BASIC Violations
Unsafe Driving54
Driver Fitness1
Hours of Service2
Drug / Alcohol0
Vehicle Maintenance57
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 |
Get this data via API
API Referencecurl https://api.dotlookup.dev/v1/carriers/943618