Unimark Lowboy Transportation LLC
Pleasant Prairie, Wisconsin · Carrier number 1604546
154
power units
154
power units
Unimark Lowboy Transportation LLC is a freight carrier based in Pleasant Prairie, Wisconsin with 154 power units and 163 drivers as reported, the 4,053rd largest trucking fleet in the US and the 110th largest in Wisconsin. In the 24 months to Sep 30, 2026 it had 13 reportable crashes, 2 of them fatal (8.44 per 100 power units vs 2.98 for all carriers).
Updated Oct 11, 2026 · crashes and inspections to Sep 30, 2026
Power units
154
#110 in WI
Drivers
163
163 with commercial license
Crashes, 24 mo
13
2 fatal
Per 100 trucks
8.44
All carriers: 2.98
Vehicles out of service
25.0%
All inspections: 22.8%
Inspections, 24 mo
111
49% with no violation
Compared with other carriers
Crash rate over 24 months per 100 power units, and the share of roadside inspections that took the vehicle or driver off the road
| Crashes / 100 trucks | Vehicles OOS | Drivers OOS | |
|---|---|---|---|
| Unimark Lowboy Transportation LLC | 8.44 | 25.0% | 0.9% |
| Carriers with 10+ trucks in WI | 3.08 | 19.2% | 2.0% |
| Carriers with 10+ trucks, US | 2.98 | 19.3% | 3.6% |
| All roadside inspections | - | 22.8% | 6.4% |
Lower is better. Carriers that drive more miles per truck can have more crashes per truck.
Crashes, 24 months
3 people killed and 10 injured
- Fatal2
- Injury3
- Tow-away8
Roadside inspections, 24 months
Inspections and how many ended out of service
| Kind | Inspections | Out of service | Rate |
|---|---|---|---|
| Driver | 111 | 1 | 0.9% |
| Vehicle | 48 | 12 | 25.0% |
Carrier facts
- Carrier number
- 1604546
- Based in
- Pleasant Prairie, Wisconsin
- Registered
- Feb 6, 2007
- Operation
- Across state lines
- Carries
- Freight
- Authority for hire
- Active
- Safety rating
- Not rated
- Miles driven
- 9.11 million (2025)
- Type
- For hire
- Cargo
- Drive tow, Motor vehicles
- Last update filed
- Jun 24, 2026
Questions and answers
How many trucks does Unimark Lowboy Transportation LLC have?
Unimark Lowboy Transportation LLC reports 154 power units (trucks, tractors and buses) and 163 drivers, 163 of them with a commercial license. That is the 4,053rd largest fleet among US trucking carriers. Its trucks drove 9.11 million miles in 2025.
Is Unimark Lowboy Transportation LLC a safe carrier?
In 24 months Unimark Lowboy Transportation LLC had 13 reportable crashes, 8.44 per 100 power units (above the 2.98 of all carriers with 10+ trucks). 25.0% of its vehicle inspections took the truck off the road (all inspections: 22.8%). It has no official safety rating. A crash record does not say who caused the crash.
Reportable crashes of trucks and buses: a death, an injury or a vehicle towed away. A crash record does not say who caused the crash. Recent months can still grow as late reports arrive. Out-of-service rate: the percent of roadside inspections that took the driver or the vehicle off the road until a serious problem was fixed. Carriers with few inspections have rates that swing a lot. Fleet, drivers and miles as the carrier reported them. Official public data, updated daily.