Stack Bros Mechanical Contractors Inc

Doing business as Stack Bros

USDOT activeAuthority activeCarrier & Shipper · InterstateHazmat

USDOT1280175
MC1583591
LocationSuperior, WI
Phone(715) 398-2964
Fleet134 power units · 143 drivers

Stack Bros Mechanical Contractors Inc (USDOT 1280175, MC-1583591) is an interstate motor carrier based in Superior, Wisconsin with 134 power units and 143 drivers reported to FMCSA. Its USDOT number and operating authority are active. FMCSA records list 11 roadside inspections in the last 24 months.

Verification snapshot · FMCSA data as of Nov 9, 2026

Operating authorityActive · MC-1583591Carrier, Shipper Liability insurance$750,000 on fileRequired: $1,000,000 Safety ratingNot rated11 inspections in 24 months Out-of-service ordersNone on fileFMCSA out-of-service orders file Registration (MCS-150)Updated Oct 15, 2026This month Process agent (BOC-3)On fileTrucker & Broker Services Inc

Got a call or email from someone using this company’s name? Check the phone number or email against FMCSA records.

Operating authority

Status from the FMCSA Company Census File, November 9, 2026

Docket	Authority type	Status
MC-1583591	Motor Carrier of Property (except Household Goods)	Active

First granted on October 12, 2023 · see full authority history.

Insurance

FMCSA licensing system (Motus), November 9, 2026

Liability (BIPD) required$1,000,000
Liability (BIPD) on file$750,000
Cargo insurance required / on fileNo / No
Bond required / on fileNo / No

Filings on file

Type	Insurer	Coverage	Effective
Liability (BIPD) BMC-91X	Travelers Indemnity Co	$750,000	Sep 27, 2023

Process agent (BOC-3)

Trucker & Broker Services Inc, Sioux Falls Sd, SD

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

11
Inspections: 9.1%
Driver out-of-service: 33.3%
Vehicle out-of-service: 0
Crashes

Inspected most often in: Wisconsin (10), Minnesota (1).

Most recent inspection on file: October 16, 2026.

FMCSA safety rating: Not rated

Inspection and crash counts come from FMCSA records and are shown as reported. They are not a safety rating. A crash record does not mean the carrier was at fault. FMCSA has not rated a carrier unless a safety rating is listed. For FMCSA’s own data and its explanation, see the FMCSA SAFER Company Snapshot.

Out-of-service rates are calculated by CheckTrucking from inspection records (driver: levels I, II, III, VI; vehicle: levels I, II, V, VI). They are not FMCSA scores.

Authority history

FMCSA licensing records (Motus and legacy L&I) · migration-only status adjustments are not shown

October 27, 2026Involuntary suspension — Motor Carrier of Property (except Household Goods)
October 12, 2023Granted — Common carrier authority; Motor Carrier of Property (except Household Goods)

Fleet and operations

From the company’s own registration (Form MCS-150), updated October 15, 2026

Power units: 134
Trucks: 134
Tractors owned: 5
Trucks owned: 129
Trailers owned: 35
Drivers: 143
CDL drivers: 24
Interstate drivers: 142
Intrastate drivers: 1
Miles traveled: 37,215 (2025)
Classification: Private property; Authorized for hire
Hazardous materials: Yes
USDOT registered: August 27, 2004
Address: 3119 Hill Ave, Superior, WI 54880
Phone (registered with FMCSA): (715) 398-2964
Other active USDOT records at this address: 1

Cargo carried

Building materials
Machinery, large objects
Construction

Key facts

USDOT number 1280175 was registered on August 27, 2004.
Operating authority MC-1583591 was first granted on October 12, 2023.
The company last updated its FMCSA registration (Form MCS-150) on October 15, 2026.
It reported 37,215 vehicle miles traveled in 2025.
One insurance filing is on file, including Liability (BIPD) coverage with Travelers Indemnity Co.
It had 11 roadside inspections in the last 24 months; 2 inspections recorded no violations.
Its process agent filing (BOC-3) is with Trucker & Broker Services Inc.

Other carriers in Superior, WI

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