Maryland's 100 Biggest Trucking Fleets (2026)
Every fleet below is headquartered in Maryland and ranked by the power-unit count on its latest MCS-150 filing. Open any row for that carrier’s full public workup — risk flags, score breakdown, insurance filings, and its month-over-month FMCSA record timeline.
| Carrier | City | Power Units | Drivers | Score |
|---|---|---|---|---|
|
PRESTON TRUCKING COMPANY INC
USDOT 45629
|
PRESTON | 2,097 | 3,705 | — |
|
COWAN SYSTEMS LLC
USDOT 548880
|
BALTIMORE | 1,882 | 1,882 | — |
|
DUNBAR ARMORED INC
USDOT 110623
|
HUNT VALLEY | 1,726 | 3,535 | — |
|
WILLIAMS SCOTSMAN INC
USDOT 350040
|
BALTIMORE | 1,426 | 1,120 | — |
|
FASTER INC
USDOT 3004376
|
BRENTWWOD | 1,392 | 1,000 | — |
|
THOMPSONGAS LLC
USDOT 2812287
|
FREDERICK | 1,210 | 787 | — |
|
CHANEY MATERIALS LLC
USDOT 186407
|
ANNAPOLIS | 964 | 685 | — |
|
LANDCARE USA LLC
USDOT 867467
|
FREDERICK | 940 | 952 | — |
|
MONTGOMERY COUNTY GOVERNMENT
USDOT 522663
|
ROCKVILLE | 881 | 1,100 | — |
|
MAYOR AND CITY COUNCIL OCEAN CITY MARYLAND
USDOT 929924
|
OCEAN CITY | 850 | 432 | — |
|
PIONEER TRANSPORTATION SYSTEMS INC
USDOT 184393
|
HURLOCK | 839 | 560 | — |
|
CATERAIR INTERNATIONAL CORP
USDOT 400772
|
ELKRIDGE | 760 | 1,800 | — |
|
BALTIMORE GAS & ELECTRIC CO
USDOT 160257
|
BALTIMORE | 688 | 1,063 | — |
|
APEX COMPANIES LLC
USDOT 1259442
|
ROCKVILLE | 604 | 1,112 | — |
|
R E MICHEL COMPANY
USDOT 261956
|
GLEN BURNIE | 578 | 742 | — |
|
COWAN TRANSPORTATION INC
USDOT 155368
|
BALTIMORE | 570 | 633 | — |
|
COCA-COLA BOTTLING CO MID-ATLANTIC
USDOT 215120
|
COLUMBIA | 538 | 679 | — |
|
GEORGE TRANSFER INC
USDOT 62087
|
PARKTON | 492 | 514 | — |
|
RUPPERT LANDSCAPE INC
USDOT 848269
|
LAYTONSVILLE | 480 | 595 | — |
|
COCA COLA ENTERPRISES
USDOT 18009
|
COLUMBIA | 468 | 370 | — |
|
SODEXO OPERATIONS LLC
USDOT 4429105
|
NORTH BETHESDA | 409 | 409 | — |
|
WASHINGTON SUBURBAN SANITARY COMMISSION
USDOT 1238066
|
LAUREL | 400 | 600 | — |
|
ENTERPRISE RAC COMPANY OF MARYLAND LLC
USDOT 1880016
|
ROCKVILLE | 370 | 75 | — |
|
ALLEGHENY PEPSI COLA BOTTLING CO
USDOT 122623
|
BALTIMORE | 339 | 335 | — |
|
WHITE SWAN INC
USDOT 7335
|
COLUMBIA | 314 | 311 | — |
|
1920 TRANSPORT LLC
USDOT 2109662
|
SALISBURY | 307 | 303 | — |
|
JOHN SEXTON AND CO
USDOT 59027
|
COLUMBIA | 297 | 365 | — |
|
PEPSI COLA BOTTLERS OF WASHINGTON DC INC
USDOT 244932
|
CHEVERLY | 297 | 230 | — |
|
SOKAUTOMOTIVESERVICE
USDOT 3520954
|
BURTONSVILLE | 291 | 549 | — |
|
PERDUE TRANSPORTATION INCORPORATED
USDOT 204935
|
SALISBURY | 289 | 314 | — |
|
D M BOWMAN INC
USDOT 135530
|
WILLIAMSPORT | 265 | 244 | — |
|
LIGHTNING TRANSPORTATION INC
USDOT 326966
|
HAGERSTOWN | 256 | 230 | — |
|
PJK FOOD SERVICE CORPORATION
USDOT 404782
|
LANDOVER | 253 | 135 | — |
|
ALFA TO OMEGA LLC
USDOT 3783334
|
PIKESVILLE | 253 | 255 | — |
|
WASTE MANAGEMENT OF MARYLAND INC
USDOT 334445
|
BALTIMORE | 250 | 324 | — |
|
BALTIMORE PEPSI COLA
USDOT 441124
|
BALTIMORE | 250 | 120 | — |
|
MERIT CONCRETE INC
USDOT 547687
|
LAUREL | 246 | 135 | — |
|
GRIFFITH ENERGY SERVICES INC
USDOT 910045
|
COLUMBIA | 244 | 152 | — |
|
SCHUSTER CONCRETE READY MIX LLC
USDOT 2570926
|
OWINGS MILLS | 243 | 282 | — |
|
COWAN INTERMODAL GROUP LLC
USDOT 215194
|
BALTIMORE | 239 | 226 | — |
|
EASTERN WASTE INDUSTRIES INC
USDOT 244924
|
ANNAPOLIS | 230 | 225 | — |
|
THE POTOMAC EDISON COMPANY
USDOT 7527
|
WILLIAMSPORT | 225 | 264 | — |
|
COASTAL SUNBELT PRODUCE LLC AND THE COASTAL COMPANIES AND COASTAL ACQUISITION CORPORATION
USDOT 463498
|
LAUREL | 215 | 186 | — |
|
COMMUNICATIONS CONSTRUCTION GROUP LLC
USDOT 546919
|
RISING SUN | 204 | 208 | — |
|
GRAY & SON INC
USDOT 988991
|
TIMONIUM | 204 | 136 | — |
|
SHOWELL FARMS INC
USDOT 119921
|
SHOWELL | 202 | 213 | — |
|
AUI INC
USDOT 2021768
|
ELKTON | 202 | 235 | — |
|
NAQEL TRANSPORT AND INVESTMENT BARTER COMPANY
USDOT 2006752
|
AMMAN | 200 | 200 | — |
|
WOODLAWN MOTOR COACH INC
USDOT 270798
|
BALTIMORE | 198 | 208 | — |
|
SMITH BUS SERVICE INC
USDOT 580046
|
ODENTON | 185 | 178 | — |
|
GENERAL HEATING & COOLING CO
USDOT 177436
|
CAPITOL HEIGHTS | 184 | 368 | — |
|
EMBASSY DAIRY INC
USDOT 328283
|
WALDORF | 181 | 187 | — |
|
CUSA DILLON'S INC
USDOT 187443
|
HANOVER | 176 | 186 | — |
|
DENISON LANDSCAPING INC
USDOT 427058
|
FT WASHINGTON | 175 | 105 | — |
|
BATES TRUCKING CO INC
USDOT 653767
|
BLADENSBURG | 172 | 142 | — |
|
TRI-L TRANSPORT INC
USDOT 312203
|
PARKTON | 168 | 153 | — |
|
O S T TRUCKING COMPANY INC
USDOT 247537
|
ROSEDALE | 164 | 163 | — |
|
TRI-GAS & OIL COMPANY INC
USDOT 7750
|
FEDERALSBURG | 162 | 205 | — |
|
RUPPERT LANDSCAPE CO INC
USDOT 326493
|
ASHTON | 160 | 230 | — |
|
MELWOOD HORTICULTURAL TRAINING CT
USDOT 1038008
|
UPPER MARLBORO | 159 | 104 | — |
|
KCI TECHNOLOGIES INC
USDOT 1027676
|
SPARKS | 158 | 144 | — |
|
BEYNON SPORTS SURFACES INC
USDOT 1037164
|
COCKEYSVILLE | 158 | 158 | — |
|
CAPITAL LIGHTING AND SUPPLY INC
USDOT 341782
|
UPPER MARLBORO | 155 | 152 | — |
|
CANADA DRY POTOMAC CORP
USDOT 32178
|
LANDOVER | 154 | 138 | — |
|
UNITED RENTALS AERIAL EQUIPMENT INC
USDOT 792938
|
BALTIMORE | 154 | 126 | — |
|
SLM TRANS INC
USDOT 1098289
|
LANDOVER | 154 | 189 | — |
|
ALLAN MYERS MD INC
USDOT 273092
|
FALLSTON | 151 | 142 | — |
|
SYSCO BALTIMORE LLC
USDOT 172924
|
JESSUP | 148 | 154 | — |
|
W A CHESTER LLC
USDOT 446723
|
LANHAM | 148 | 104 | — |
|
NATIONAL DELIVERY SYSTEMS INC
USDOT 966390
|
ELKRIDGE | 147 | 136 | — |
|
ALBAN TRACTOR LLC
USDOT 122618
|
BALTIMORE | 140 | 131 | — |
|
INTERIOR SPECIALISTS INC
USDOT 1031324
|
WHITE MARSH | 138 | 107 | — |
|
HALE INTERMODAL TRUCKING CO
USDOT 149180
|
BALTIMORE | 137 | 137 | — |
|
KELLER NORTH AMERICA INC
USDOT 200526
|
HANOVER | 137 | 47 | — |
|
COCKEY'S ENTERPRISES INC
USDOT 550731
|
BALTIMORE | 135 | 120 | — |
|
LIFT OFF DISTRIBUTION LLC
USDOT 1201792
|
COLUMBIA | 135 | 135 | — |
|
MISSION BBQ MANAGEMENT LLC
USDOT 2505745
|
GLEN BURNIE | 135 | 130 | — |
|
JOHN W BRAWNER CONTRACTING CO INC
USDOT 538385
|
HUNT VALLEY | 134 | 101 | — |
|
CJ MILLER LLC
USDOT 335900
|
HAMPSTEAD | 131 | 245 | — |
|
ERRANDS PLUS INC
USDOT 1424655
|
ROCKVILLE | 131 | 166 | — |
|
MBG ENTERPRISES INC
USDOT 1126119
|
HARMANS | 130 | 80 | — |
|
ENVIRONMENTAL ALTERNATIVES LLC
USDOT 1289796
|
CLARKSBURG | 130 | 130 | — |
|
TONY HENDERSON
USDOT 1383769
|
SEVERN | 130 | 55 | — |
|
TECTA AMERICA EAST LLC
USDOT 1497382
|
JESSUP | 129 | 79 | — |
|
RELIABLE CONTRACTING CO INC
USDOT 1018322
|
GAMBRILLS | 128 | 201 | — |
|
DECISIVE COMMUNICATIONS INC
USDOT 1732994
|
IJAMSVILLE | 128 | 73 | — |
|
VERMEER MID ATLANTIC LLC
USDOT 2871837
|
ANNAPOLIS JCT | 128 | 140 | — |
|
M K COALE ENTERPRISES INC
USDOT 110309
|
JOPPA | 127 | 106 | — |
|
ALLIED DRILLING LLC
USDOT 1064198
|
LAUREL | 127 | 119 | — |
|
DAYTON TRANSPORT CORPORATION
USDOT 84303
|
NEW MARKET | 124 | 75 | — |
|
SPINIELLO GLOBAL
USDOT 2941786
|
BALTIMORE | 122 | 55 | — |
|
GIANT OF MARYLAND LLC
USDOT 110018
|
JESSUP | 121 | 282 | — |
|
CHESAPEAKE CHARTER INC
USDOT 350703
|
ANNAPOLIS | 121 | 145 | — |
|
DILLONS BUS LINES LLC
USDOT 4259861
|
HANOVER | 121 | 114 | — |
|
ATLANTIC TRACTOR LLC
USDOT 173187
|
SALISBURY | 120 | 138 | — |
|
UNITY DISPOSAL & RECYCLING LLC
USDOT 672770
|
LAUREL | 118 | 118 | — |
|
ANDERSON MID-ATLANTIC NEWS LLC
USDOT 906605
|
HAMPSTEAD | 118 | 89 | — |
|
THE JACOBS COMPANIES INC
USDOT 32591
|
LANDOVER | 117 | 159 | — |
|
THE ARC OF PRINCE GEORGE'S COUNTY
USDOT 1037953
|
LARGO | 117 | 50 | — |
|
CAPITAL SHIPPING LLC
USDOT 3702263
|
BELTSVILLE | 116 | 202 | — |
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Frequently asked questions
About trucking companies in Maryland
How big is the trucking industry in Maryland?
Nightly aggregation of the FMCSA census puts Maryland at 44,197 active motor carriers running roughly 363,771 power units combined, and about 53% of those carriers are single-truck owner-operators. Average active fleet size works out to 9.1 trucks.
How fast is the Maryland carrier market changing?
416 new MD carrier registrations appeared in the last 90 days — and 889 registrations carry an FMCSA prior-revocation link, the raw material of chameleon re-registrations.
Which Maryland carrier runs the biggest fleet?
PRESTON TRUCKING COMPANY INC out of PRESTON tops the MD ranking with 2097 power units on its latest MCS-150. Its complete vetting workup — risk flags, score breakdown, insurance filings, and record timeline — is at https://mclookup.com/carrier/45629.
Where does this Maryland ranking come from?
The list orders every carrier headquartered in MD by self-reported power units, filtered for plausibility (a driver-to-truck ratio between 0.3 and 5.0 screens out data-entry junk like thousand-truck fleets with zero drivers). Showing the top 100 of 7,430 qualifying carriers; every row links to that carrier's full public record.
Can I vet a Maryland carrier that isn't listed here?
Yes — this page only surfaces the largest fleets. Any of the 7,430 registered MD carriers can be pulled up by typing its USDOT or MC number into the search bar, which returns the same risk-flag screening, score breakdown, and month-over-month record history.
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