Carrier profile · USDOT 1280175 · MC1583591 · Data as of Oct 7, 2026

Stack Bros Mechanical Contractors Inc

DBA Stack Bros · Superior, WI · Interstate for-hire carrier · Since 2004
Authority active$750K BIPD on fileNot rated by FMCSAHazmat
Cargo carriedBuilding MaterialsMachinery, Large ObjectsConstruction
134
Power units
143
Drivers
8
Inspections · 24 mo
0
Crashes · 24 mo
600K
Annual miles
22 yr
Registered
60
/ 100
High risk

Serious problems on the federal record

Liability insurance below required minimum: $750,000 on file vs $1,000,000 required. Vehicle OOS well above average: 42.9% of vehicle inspections placed out of service vs 22.26% national.

How we scored it · 5 factors
Operating authority20/20
Insurance0/20
Out-of-service rates0/20
Crashes & rating20/20
Continuity & identity20/20

Composite of public FMCSA authority, insurance, inspection and crash records weighted against the national fleet. Decision support, not an official FMCSA safety rating.

Safety

FMCSA inspections & crashes · 24 mo · AS OF OCT 7, 2026
Vehicle out-of-service
42.9%▲ above avg
National 22.26% · 3 of 7 inspections
Driver out-of-service
12.5%▲ above avg
National 6.67% · 1 of 8 inspections
Crashes
0
0 fatal0 injury0 tow-away
Crash rate 0.00 per 1M mi
Total inspections
8
Driver inspections
8
Vehicle inspections
7
People injured
0
Fatalities
0
FMCSA rating
Not rated

Enforcement

FMCSA closed cases

Closed enforcement cases — case numbers, violation codes and the amount settled — are available after you create a free account.

Authority & insurance

FMCSA L&I · AS OF OCT 7, 2026
Carrier
Active
Broker
None
Docket
MC1583591
Revocation pending
No
Motor Carrier of Property (Except Household Goods)

Coverage vs federal minimum

BIPD liability$750,000
$1M required minimum (49 CFR 387.9)
CargoNot required

Filings on record

  1. Sep 27, 2023Liability (BIPD) · Travelers Indemnity Company · $750,000

Equipment

SELF-REPORTED ON MCS-150
134
Power units
134
Trucks
5
Tractors owned
35
Trailers owned
143
Drivers
24
CDL drivers
Registered to haul hazardous materials.

Operations & cargo

FMCSA CENSUS
InterstatePrivate PropertyAuthorized for Hire
Cargo carried
Building MaterialsMachinery, Large ObjectsConstruction
Annual mileage
600,000 mi (2022)

Identity & federal record

FMCSA census · MCS-150
USDOT
1280175
MC / docket
MC-1583591
Legal name
Stack Bros Mechanical Contractors Inc
DBA
Stack Bros
Entity type
Carrier
Operation
Interstate
First registered
Aug 27, 2004
Last MCS-150
May 27, 2025
Safety rating
Not rated
Drivers (CDL)
143 (24)
Hazmat
Yes
Business type
—

Fraud & network signals

For review, not a verdict.

No prior revocation
FMCSA shows no link to a previously revoked authority.
Shared phone number
Same phone number as 1 other active USDOT.
Unique email address
Not shared with any other active USDOT.
Shared street address
Same street address as 1 other active USDOT.
Sharing this phone number · (715) 398-2964
Sharing this street address

Shared contact details can mean affiliated companies or a registration service, but they are also a common sign of chameleon carriers and identity theft. Confirm you're dealing with the company you expect.

Frequently asked

What is Stack Bros Mechanical Contractors Inc's USDOT number?

Stack Bros Mechanical Contractors Inc's USDOT number is 1280175 and its docket number is MC1583591.

Is Stack Bros Mechanical Contractors Inc authorized to operate?

Yes. FMCSA shows active carrier operating authority.

What is Stack Bros Mechanical Contractors Inc's safety record?

Over the last 24 months: 8 roadside inspections, a 42.9% vehicle and 12.5% driver out-of-service rate, and 0 reportable crashes (0 fatal). Not rated by FMCSA.

How big is Stack Bros Mechanical Contractors Inc's fleet?

134 power units and 143 drivers per its MCS-150 filed May 27, 2025.

What insurance does Stack Bros Mechanical Contractors Inc carry?

$750,000 in BIPD liability coverage is on file with Travelers Indemnity Company.

Where is Stack Bros Mechanical Contractors Inc located?

Stack Bros Mechanical Contractors Inc is located at 3119 Hill Ave, Superior, WI, 54880. Phone: (715) 398-2964.

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Source: FMCSA public records via the U.S. DOT Open Data Portal. Carrier Search presents the federal record and computed signals for decision support only. It is not an FMCSA safety rating and not a recommendation to use or avoid any carrier. Verify authority and insurance before tendering.