How many trucking companies are registered in Maryland?

Maryland has 43,473 active FMCSA-registered motor carriers as of the most recent monthly update, ranking 17th in the United States.

Trucking Companies in Maryland – Safety Ratings & DOT Numbers

Q: How do I find a Maryland trucking company by DOT number?

Use the search bar at the top of the page to look up any carrier by company name or USDOT number and access the full carrier profile including safety ratings and inspection history.

Maryland is home to 43,473 active trucking companies and FMCSA-registered motor carriers (ranked 17th in the United States). Browse carriers by city, filter by safety rating, and access full inspection and crash records for every registered operator.

2% of inspected carriers hold a Satisfactory safety rating — below the national average. The average out-of-service rate of 37.9% exceeds the national vehicle OOS average of ~21%.

43,473

Active Carriers

15,100

Carriers Inspected

Satisfactory Rating

37.9%

Avg OOS Rate

Safety Overview

Maryland ranks #17 in the United States by number of active carriers, with 15,100 carriers having undergone FMCSA inspection. Safety performance warrants attention — the 37.9% average OOS rate exceeds the national benchmark of ~21%. 2% of rated carriers hold a Satisfactory rating. This page helps you compare carriers across Maryland based on safety, inspection history, and operational scale.

Largest Trucking Companies in Maryland

Largest Trucking Companies →Safest Trucking Companies →

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Active Motor Carriers in Maryland

Active Carriers — Maryland

Showing 1–25 of 43,473

Company	City	Operation	Fleet Size	Safety Rating
Cowan Systems Llc DOT# 548880	Baltimore	Interstate	1,882	Satisfactory	›
Woodlawn Motor Coach Inc DOT# 270798	Baltimore	Interstate	198	Satisfactory	›
Williams Scotsman Inc DOT# 350040	Baltimore	Interstate	1,426	Satisfactory	›
Thompsongas Llc DOT# 2812287	Frederick	Interstate	1,210	Not Rated	›
Baltimore Tank Lines Llc DOT# 84666	Glen Burnie	Interstate	100	Satisfactory	›
Lightning Transportation Inc DOT# 326966	Hagerstown	Interstate	309	Satisfactory	›
Cowan Intermodal Group Llc DOT# 215194	Baltimore	Interstate	239	Satisfactory	›
Carroll Independent Fuel Llc DOT# 336632	Sparks Glencoe	Interstate	98	Satisfactory	›
Chesapeake Charter Inc DOT# 350703	Annapolis	Interstate	107	Satisfactory	›
Waste Management of Maryland Inc DOT# 334445	Baltimore	Interstate	250	Satisfactory	›
Adventures by Dawn Llc DOT# 779981	Accokeek	Interstate	102	Satisfactory	›
Lonergans Charter Service Inc DOT# 84782	Millersville	Interstate	98	Satisfactory	›
D M Bowman Inc DOT# 135530	Williamsport	Interstate	265	Satisfactory	›
United Brothers Services Llc DOT# 3267070	Owings Mills	Interstate	35	Not Rated	›
Annapolis Bus Company Inc DOT# 122651	Annapolis	Intrastate (Non-Hazmat)	111	Not Rated	›
Chaney Materials Llc DOT# 186407	Annapolis	Interstate	964	Satisfactory	›
Coastal Sunbelt Produce Llc and the Coastal Companies and Coastal Acquisition Corporation DOT# 463498	Laurel	Interstate	215	Satisfactory	›
Mts Transport Llc DOT# 2029816	Baltimore	Interstate	109	Not Rated	›
Perdue Transportation Incorporated DOT# 204935	Salisbury	Interstate	444	Satisfactory	›
Maryland Tree Experts DOT# 3304931	Middle River	Interstate	19	Conditional	›
1920 Transport Llc DOT# 2109662	Salisbury	Interstate	486	Not Rated	›
Jubb'S Bus Service Inc DOT# 533994	Glen Burnie	Interstate	58	Satisfactory	›
Teddy Bear Fresh Produce Llc DOT# 2164251	Easton	Interstate	38	Not Rated	›
Solutions Transport Llc DOT# 334544	Baltimore	Interstate	100	Satisfactory	›
R E Michel Company DOT# 261956	Glen Burnie	Interstate	578	Satisfactory	›

1–25 of 43,473 carriers

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Cities in Maryland

Frequently Asked Questions

How many trucking companies are in Maryland?

There are 43,473 active trucking companies registered in Maryland with the FMCSA.

Which cities in Maryland have the most motor carriers?

Baltimore (4,162), Silver Spring (1,420), and Frederick (1,080) have the largest number of FMCSA-registered carriers in Maryland.

How do I find a Maryland trucking company by DOT number?

Use the search bar at the top of the page to look up any Maryland carrier by company name or USDOT number, and access the full carrier profile including safety ratings and inspection history.

What is the average OOS rate for Maryland carriers?

The average out-of-service rate for Maryland carriers is 37.9%, which exceeds the national vehicle OOS average of ~21%. OOS rate measures the percentage of inspections that resulted in a carrier being taken out of service.

How safe are trucking companies in Maryland?

Maryland carriers have a 2% Satisfactory rating rate and an average OOS rate of 37.9%. Always review individual carrier profiles before making decisions.

Data sourced from the FMCSA Open Data Portal. Updated monthly for Maryland motor carriers. Last updated: 2026-03-09.

Top Trucking Companies in Maryland