Carrier profile · USDOT 943618 · MC-404792 · Updated Aug 20, 2026

A-1 Transit Corporation

398 power unitsavg 9.1 yrRegional · 7 statesMARATHON, WI81/100

CARRIER ACTIVEMC-404792 ACTIVEHAZMAT

Observed fleet · trailing 24 mo daily

398Power units

96 observed · MCS-150

93Trailers seen

Decoded · vPIC

9.1Avg age (yr)

1997–2026 · vPIC

Call dispatch(715) 870-4692 Email dispatchbill.sauter@countymaterials.com

Click to see how we scored it

Load decision · FMCSA snapshot · Aug 20, 2026

Review before loading

Operating, but with flags a broker should weigh before tendering freight.

Watch · 2

Vehicle out-of-service rate above average24.4% vs the 22.26% national average.Fatal crash on record5 crash(es) involving a fatality are on this carrier's record.

In good standing · 3

Active operating authorityActive for-hire authority is on file with FMCSA.Insurance on fileBIPD (liability) insurance is on file with FMCSA.Established 25 yearsOperating authority has been on file since 2001.

USDOT registration

yr registered

Active for-hire

Insurance (BIPD)$1M in force

FMCSA L&I

Vehicle OOS · 24-mo24.4%

▲ 22.26% nat'l

Crashes · fatal

12 in 24 mo

USDOT registration

yr registered

Active for-hire

Insurance (BIPD)$1M in force

FMCSA L&I

Vehicle OOS · 24-mo24.4%

▲ 22.26% nat'l

Crashes · fatal

12 in 24 mo

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Asset-based

398 power units. Brokers price each fleet type apart.

Fleet age vs peersTypical

9.1 yr

Model years 1997–2026 · peer benchmark unavailable.

Identity stabilityStable

25 yr unchanged

Same registration since 2001 — no chameleon / reincarnation signal.

Safety

124 inspections · 24 mo · vs national benchmarks

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 24.4%24-mo cumulative

050%nat'l 22.26%

Driver OOS 0.0%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 78 vehicle and 124 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

23.1% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 2.4 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

117 inspections in the charted months · busiest month Oct '24 · 12

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Thin coverage

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.2 / unit·yr

thin signalabundant signal

Few roadside inspections for a 398-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.

Registered power units: 398
Inspections · 24 mo: 124
Annualized: ≈62 / yr
Coverage: ≈0.2 inspections / unit · yr

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving68 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance25 · 5 OOS
393.45 Brake tubing / hose defectsVehicle Maintenance13 · 1 OOS
393.75 Tires (defective / underinflated / worn)Vehicle Maintenance13 · 13 OOS
392.16 Failure to use seat beltUnsafe Driving6 · 0 OOS
393.110 Cargo securement — number of tiedownsVehicle Maintenance5 · 5 OOS
393.124 Parts & accessories (vehicle condition)Vehicle Maintenance5 · 5 OOS
393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance5 · 0 OOS
393.11 Required lamps/reflectors missingVehicle Maintenance4 · 1 OOS
393.104 Cargo securement — tiedownsVehicle Maintenance4 · 0 OOS

Explore full safety record — inspections, BASICs, crashes

Authority & Insurance

Can they legally + adequately haul your load?

Operating authority· 49 CFR · per type

Operating authority

Common: None
Contract: Active
Broker: None

Insurance & bonds

BIPD / liability$1,000,000 in force

Cargo filing (census)Not recorded per census

Surety bond (census)Not recorded per census

Insurance adequacy· filed BIPD vs the $750K federal floor

$1M in forcegeneral-freight federal minimum

$750K floor

Filed BIPD coverage of $1M meets or exceeds the $750K federal minimum for general freight (49 CFR 387.9). Some commodities (hazmat, larger vehicles) require $1M–$5M — confirm against your load.

Insurance continuity· insurer · policy · lapses

$750K BIPD last filed ’07 · 1 insurer · 0 lapsesContinuous

Zurich American’01–now

2001200820152022now

BIPD in force — $1,000,000 · ZURICH AMERICAN INSURANCE COMPANY · since Oct 2006

All 1 insurer era · dates, limits, renewals

Insurer	Period	Limit	Renewals
ZURICH AMERICAN INSURANCE COMPANY	Jan 2001 → Jan 2007	$750K	2

Explore full authority & insurance record

Equipment

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 398
Observed power (24 mo): 96
Trailers (towed): 93

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

Fleet age· model years · decoded VINs

9.1 yr

Average age

2026

Newest model yr

1997

Oldest model yr

16.1%

VINs decoded

Explore full fleet — VIN roster, equipment mix, age distribution

Operations & Lanes

Revealed by inspection density across 7 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusRegional

revealed

States observed

US states

Inspections · 24 mo

124

WI busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base

MARATHON, WI

205 NORTH STREET

Top corridor

WI 52 · MO 26 · FL 21

Density

fewermore

Shade = roadside inspections, last 24 mo.

See the full operating map — state density, top lanes

Network & Fraud

Affiliated entities & reincarnation signals · for review, not a verdict

No shared-VIN flow in the last 12 months

None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.

Show all-time history (3 trucks · 3 carriers)

Across all inspections on record: USDOT 191788 USDOT 2271526 USDOT 242683

Shares a registration email domain with other carriers

@countymaterials.com — 2 carriers: USDOT 381219

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

398

Observed (24 mo)

Shared w/ other carriers

Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.

Explore the carrier network & VIN cross-links

Identity & Federal

FMCSA census + L&I dossier

Location

Physical address: 205 NORTH STREET, MARATHON, WI, 54448
Mailing address: 205 NORTH STREET PO BOX 100, MARATHON, WI, 54448
Operation: Interstate· Hazmat

Contact

Phone: (715) 870-4692
Fax: (877) 651-5045
Email: bill.sauter@countymaterials.com
Web domain: countymaterials.com

Registration

Officers: Tim Sonnentag · Bill Sonnentag
USDOT / docket: 943618 · MC-404792
First registered: Mar 28, 2001
Last MCS-150: May 2, 2025 · 12,055,467 mi (2024)
FMCSA safety rating: Not rated
D-U-N-S: —

Fleet (self-reported · MCS-150)

398

Power units

241

Drivers

241

CDL drivers

12,055,467

Annual mileage

Open the full identity & federal record

Federal activity

Daily-captured FMCSA licensing & insurance changes — monitored by Vektor

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.

Open the full federal-record activity feed

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score

No verified reviews yet

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Verification summaryAuthority, insurance, safety and identity facts for A-1 TRANSIT CORPORATION.

A-1 TRANSIT CORPORATION (USDOT 943618) has a Vektor safety score of 81/100 and a Review before loading verdict, from the carrier's FMCSA record refreshed Aug 20, 2026.

The carrier holds active contract for-hire operating authority per FMCSA L&I as of Aug 20, 2026.

It has an active BIPD insurance filing with a $1,000,000 limit in force from ZURICH AMERICAN INSURANCE COMPANY effective Oct 1, 2006 in FMCSA L&I's current snapshot as of Aug 20, 2026.

Its vehicle out-of-service rate was 24.4% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Aug 20, 2026.

The carrier received 124 roadside inspections in the last 24 months — 78 vehicle-level and 124 driver-level — across 7 states, according to FMCSA roadside-inspection data refreshed Aug 20, 2026.

The carrier has 12 reportable crashes in the last 24 months and 5 fatal crashes across the full FMCSA crash record available as of Aug 20, 2026.

It reports 398 power units and 241 drivers in its most recent MCS-150 filing dated May 2, 2025.

It has no FMCSA-assigned safety rating in the federal record refreshed Aug 20, 2026.

Frequently asked

What is A-1 TRANSIT CORPORATION's USDOT number?

A-1 TRANSIT CORPORATION's USDOT number is 943618, and its motor carrier number is MC-404792.

Is A-1 TRANSIT CORPORATION authorized to operate?

As of Aug 20, 2026, A-1 TRANSIT CORPORATION is active in the FMCSA register with common, contract, broker operating authority on file.

What is A-1 TRANSIT CORPORATION's safety record?

A-1 TRANSIT CORPORATION has a 24.4% vehicle out-of-service rate (national average 22.26%) across 188 roadside inspections, with 12 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 81/100 (tier: review).

How big is A-1 TRANSIT CORPORATION's fleet?

A-1 TRANSIT CORPORATION operates 398 power units and 241 drivers per its most recent MCS-150 filing.

Where is A-1 TRANSIT CORPORATION based?

A-1 TRANSIT CORPORATION is based in MARATHON, WI, with roadside inspections recorded across 7 states.

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