STACK BROS MECHANICAL CONTRACTORS INC

Authority active

dba STACK BROS · USDOT 1280175 · MC1583591 · SUPERIOR, WI

STACK BROS MECHANICAL CONTRACTORS INC (USDOT 1280175, MC MC1583591) is a motor carrier based in SUPERIOR, WI. This page provides comprehensive safety information, inspection history, authority status, and compliance data for STACK BROS MECHANICAL CONTRACTORS INC.

Quick Facts

Legal Name:: STACK BROS MECHANICAL CONTRACTORS INC
USDOT Number:: 1280175
MC Number:: MC1583591
Authority Status:: Active
Power Units:: 134
Location:: SUPERIOR, WI

Insurance filing

Unknown

USDOT registration

USDOT active

Fleet size

134 power units

143 drivers

Safety record

Rolling 24 months

inspections

with violations

violations

37.5%

vehicle out of service

12.5%

driver out of service

FMCSA safety scores through Jun 2026

Unsafe driving
2 of 2 with violations
Hours of service
1 of 10 with violations
Vehicle maintenance
79.5%

worse than 80% of 51,399 similar carriers
Driver fitness
1 of 10 with violations
Controlled substances
No violations

Recent inspections

May 20, 2026WI2764004574No violations foundClear

May 12, 2026WI2824000267Vehicle placed out of serviceOut of service

Apr 21, 2026WI2764004522Violations recorded1 violation

Nov 25, 2025WI2764004316Vehicle placed out of serviceOut of service

Operating profile

DOT Company Census · updated Aug 14, 2026

Operation

Classification

PRIVATE PROPERTY;AUTHORIZED FOR HIRE

Registered

Aug 27, 2004

MCS-150 mileage

600,000 mi

Mileage year

2022

Reported cargo

No cargo classifications reported.