Carrier Search
Sign inSign up
Carrier profile · USDOT 32659 · Data as of Oct 7, 2026

Jack T Irwin Inc

DBA Irwinstone · Rockville, MD · Interstate carrier · Since 1974
No MC authorityNot rated by FMCSANo hazmat
Cargo carriedBuilding MaterialsConstruction
View on FMCSA SAFERCall (301) 762-5800
6
Power units
6
Drivers
4
Inspections · 24 mo
0
Crashes · 24 mo
75K
Annual miles
52 yr
Registered
84
/ 100
Review before loading

One flag to check before loading

Vehicle OOS well above average: 100.0% of vehicle inspections placed out of service vs 22.26% national.

How we scored it · 5 factors
Operating authority20/20
Insurance20/20
Out-of-service rates4/20
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
100.0%▲ above avg
National 22.26% · 3 of 3 inspections
Driver out-of-service
0.0%▼ below avg
National 6.67% · 0 of 4 inspections
Crashes
0
0 fatal0 injury0 tow-away
Crash rate 0.00 per 1M mi
Total inspections
4
Driver inspections
4
Vehicle inspections
3
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.

Create an accountSign in

Authority & insurance

FMCSA L&I · AS OF OCT 7, 2026

No operating authority (MC/FF docket) on file. Private and intrastate carriers don't need one; interstate for-hire carriers and brokers do.

Equipment

SELF-REPORTED ON MCS-150
6
Power units
6
Trucks
—
Tractors owned
—
Trailers owned
6
Drivers
6
CDL drivers
Not registered for hazardous materials.

Operations & cargo

FMCSA CENSUS
InterstatePrivate Property
Cargo carried
Building MaterialsConstruction
Annual mileage
75,000 mi (2024)

Identity & federal record

FMCSA census · MCS-150
USDOT
32659
MC / docket
None
Legal name
Jack T Irwin Inc
DBA
Irwinstone
Entity type
Carrier
Operation
Interstate
First registered
Jun 1, 1974
Last MCS-150
Nov 10, 2025
Safety rating
Not rated
Drivers (CDL)
6 (6)
Hazmat
No
Business type
Corporation

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.
Shared email address
Same email address as 1 other active USDOT.
Unique street address
Not shared with any other active USDOT.
Sharing this phone number · (301) 762-5800
Sharing this email 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 Jack T Irwin Inc's USDOT number?

Jack T Irwin Inc's USDOT number is 32659.

Is Jack T Irwin Inc authorized to operate?

It does not hold MC operating authority, which private and intrastate carriers do not need.

What is Jack T Irwin Inc's safety record?

Over the last 24 months: 4 roadside inspections, a 100.0% vehicle and 0.0% driver out-of-service rate, and 0 reportable crashes (0 fatal). Not rated by FMCSA.

How big is Jack T Irwin Inc's fleet?

6 power units and 6 drivers per its MCS-150 filed Nov 10, 2025.

Where is Jack T Irwin Inc located?

Jack T Irwin Inc is located at 601 E Gude Dr, Rockville, MD, 20850. Phone: (301) 762-5800.

Similar carriers in Maryland

All Maryland carriers →
Kgenetix Farm LLC
Baltimore, MD · 6 power units
Carrier
Supreme Utility Contractors
Essex, MD · 6 power units
Carrier
Pinnacle Logistics, LLC
Bowie, MD · 6 power units
Carrier
W & S Trucking LLC
Laurel, MD · 6 power units
Carrier
American Star Farm LLC
Mount Airy, MD · 6 power units
Carrier
TWP Motorsports, Inc.
Waldorf, MD · 6 power units
Carrier
Trucking companies in RockvilleFreight brokers in Maryland

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.