UNIMARK LOWBOY TRANSPORTATION LLC
130-unit auto hauler based in Pleasant Prairie, WI. Current peer-cohort grade: A (strong).
- USDOT
- 1604546
- MC
- MC593409
- Based
- Pleasant Prairie, WI
- Contact
- 2625647282 · compliance@atctransportation.com
What this carrier is
UNIMARK LOWBOY TRANSPORTATION LLC is a large-fleet auto hauler based in Pleasant Prairie, WI. Operating footprint: 130 power units, 130 drivers. The carrier runs over-the-road lanes and holds active MC593409 authority. Listed cargo classifications include motor vehicles and driveaway/towaway.
Fleet composition on file: 15 owned trailers, 130 term-leased tractors, 85 term-leased trailers.
For shippers and brokers: this carrier reads as low-risk on peer-cohort measures with no acute or critical flags in the current window.
At a glance
Safety record
Grade shown here is ProHRHQ analysis based on public FMCSA data. It is not an official FMCSA safety rating. The authoritative federal record is on FMCSA SAFER/SMS.
Current peer-cohort snapshot based on public FMCSA BASIC measures. Peer cohort: 117 motor carriers operating 130 power units.
No acute or critical violation flags in the current review window.
The strongest signal is Vehicle Maintenance at 41.6% of peer cohort average — well under norm. Combined with a clean acute-flag picture, that supports the A grade. Main caution: nothing stands out as disqualifying on this record.
| BASIC | Carrier (3yr, weighted) | Cohort avg | vs. cohort | Acute |
|---|---|---|---|---|
| Unsafe Driving | 72 | 81.44 | 88.4% | No |
| Hours-of-Service | 19 | 15.37 | 123.6% | No |
| Driver Fitness | 3 | 3.73 | 80.5% | No |
| Controlled Substances/Alcohol | 0 | 0.00 | — | No |
| Vehicle Maintenance | 61 | 146.66 | 41.6% | No |
| Hazmat | 0 | 1.47 | 0.0% | n/a |
Against similarly sized 130-power-unit peers, this carrier is below cohort average in Unsafe Driving, Driver Fitness, and Vehicle Maintenance.
Inspection and violation record
Last 3 years of public roadside history for USDOT 1604546: 194 inspections across 34 states. Most recent inspection: Apr 14, 2026 in TN.
| BASIC | Violations (3 yr) |
|---|---|
| Unsafe Driving | 66 |
| Hours-of-Service | 18 |
| Driver Fitness | 1 |
| Vehicle Maintenance | 93 |
| Total violations | 183 (36 out-of-service) |
Crash record (3 yr): 18 reportable crashes , 11 with reported injuries , 2 with fatalities . Most recent: Mar 31, 2026.
What this carrier likely fits
This is an auto hauler that runs over-the-road lanes, primarily interstate over 100 miles, at a large fleet scale, with motor vehicles, and driveaway/towaway on the FMCSA cargo classification list.
Drawn from FMCSA-reported cargo classifications, route profile, and fleet composition. Not a substitute for direct confirmation of equipment and lane capability with the carrier.
Key takeaways
- Grade A (strong) against 117 peer carriers operating 130 power units.
- No acute or critical violation flags in the current review window.
- 111 inspections in the 24-month SMS window (1 driver OOS, 8 vehicle OOS).
- Three-year public record: 183 violations, 18 reportable crashes (2 involving fatalities).
- Hazmat is the strongest area — 0.0% of peer cohort average (well under norm).
- Operates as a large-fleet auto hauler running over-the-road lanes with 130 power units on file.
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