| National Delivery Systems INC | 966390 | 147 | 136 | InterstateHazmat |
| Traffic Engineering Services De LLC | 4123317 | 105 | 42 | Interstate |
| Regional Transit Agency Rta | 2512606 | 67 | 150 | Intrastate |
| Saval Foodservice | 176138 | 53 | 51 | Interstate |
| Corrigan Sports Enterprises | 2321485 | 38 | 12 | Interstate |
| J J Mcdonnell & Company INC | 523692 | 29 | 45 | Interstate |
| Rudolph's Office & Computer Supply INC | 873735 | 22 | 22 | InterstateHazmat |
| Larry T Weiss CO INC | 432812 | 18 | 18 | Interstate |
| Barr Transportation LLC | 3449086 | 18 | 23 | Interstate |
| Reico Kitchen & Bath | 94103 | 17 | 17 | Interstate |
| Cameron Building Envelope Specialists LLC | 2108342 | 15 | 15 | Interstate |
| Miles Towing | 571376 | 14 | 9 | InterstateHazmat |
| Dunkin Donut Manufacturing | 1482922 | 14 | 14 | Intrastate |
| Agrolawn INC | 1335527 | 13 | 13 | IntrastateHazmat |
| J A Smith & CO INC | 1040071 | 12 | 12 | Intrastate |
| Network Building & Consulting LLC | 2455086 | 12 | 20 | Interstate |
| W F Wilson And Sons INC | 1034071 | 11 | 23 | IntrastateHazmat |
| Cybercore Technologies LLC | 1343386 | 10 | 19 | Interstate |
| Mts Mayflower Laundry And Linen | 544521 | 9 | 12 | Interstate |
| Yellow Dumpster Service INC | 2826764 | 9 | 6 | Intrastate |
| Maximus Transportation LLC | 2934631 | 9 | 6 | Interstate |
| Fpc Distribution | 335455 | 8 | 10 | InterstateHazmat |
| Paul Federline & Sons LLC | 388420 | 8 | 13 | Interstate |
| Baldwin Line Construction Of Maryland INC | 389295 | 8 | 20 | Intrastate |
| Maryland Mobile Trailer Service INC | 539483 | 8 | 5 | Intrastate |
| Milby Company | 594696 | 8 | 8 | Interstate |
| R And R Trucking Services LLC | 1567095 | 8 | 7 | Interstate |
| T Transport | 3494465 | 8 | 8 | Interstate |
| Yellow Dumpster Service INC | 4337894 | 8 | 5 | Interstate |
| Model Home Interiors INC | 357555 | 7 | 9 | Interstate |
| Servpro Of Howard County | 2589358 | 7 | 7 | Intrastate |
| Md Landscape Supply | 3095650 | 7 | 5 | Intrastate |
| Power Of Communications Technology LLC | 3263545 | 7 | 6 | Interstate |
| Thomas A Mckissick INC | 163631 | 6 | 5 | Interstate |
| Cantwell-Cleary CO INC | 331457 | 6 | 7 | Interstate |
| Neu Valley Nurseries INC | 525699 | 6 | 5 | Intrastate |
| Lenny's Towing | 923362 | 6 | 7 | InterstateHazmat |
| D H Moving & Storage INC | 1015749 | 6 | 7 | Intrastate |
| Asbestos Specialists INC | 1019295 | 6 | 6 | Interstate |
| Aerotech Gutter Service Of Metro Dc INC | 2008326 | 6 | 3 | Interstate |
| Cameron Insulation LLC | 2108278 | 6 | 6 | Interstate |
| Domain Rental Furnishings | 3383529 | 6 | 6 | Interstate |
| Sp Washco LLC | 3506533 | 6 | 10 | Intrastate |
| Pdx | 1061814 | 5 | 5 | InterstateHazmat |
| M&k Food INC | 1069929 | 5 | 4 | Interstate |
| H C Walterhoefer INC | 1198254 | 5 | 3 | Interstate |
| Mom's Organic Market | 2287965 | 5 | 5 | Interstate |
| Strickland Services LLC | 2552750 | 5 | 5 | Intrastate |
| Prestige - Ledroit Distributing Company | 3058183 | 5 | 8 | Interstate |
| Show Flight Transportation LLC | 3091723 | 5 | 3 | Interstate |
| Payne Landscaping INC | 1037891 | 4 | 7 | Intrastate |
| Sapna Foods | 1279948 | 4 | 3 | Interstate |
| Fesco Emergency Sales | 1494265 | 4 | 10 | InterstateHazmat |
| Tidewater INC | 1591354 | 4 | 4 | Interstate |
| Kellaher Maintenance Engineering | 2472381 | 4 | 2 | Intrastate |
| Jb Contractors LLC | 2480647 | 4 | 2 | Intrastate |
| 4 Seasons Rcj LLC | 2489858 | 4 | 4 | Intrastate |
| Yoni's Landscaping LLC | 2781927 | 4 | 3 | Intrastate |
| 1stopp Towing | 3065192 | 4 | 10 | Intrastate |
| O'donnell Metal Deck LLC | 3528813 | 4 | 4 | Interstate |
| Champion Mulch & Outdoor Supply | 3538474 | 4 | 3 | Interstate |
| Er Transport LLC | 3677010 | 4 | 1 | Interstate |
| C-Lay Companies | 3857986 | 4 | 2 | Interstate |
| H & N Cargo INC | 4053119 | 4 | 3 | Interstate |
| Plc Towing LLC | 4451590 | 4 | 4 | IntrastateHazmat |
| Ddl Construction LLC | 4475688 | 4 | 1 | Intrastate |
| All In 1 Stop And Shop LLC | 4545685 | 4 | 16 | Interstate |
| Heavy Motion Towing And Hauling LLC | 7736278 | 4 | 1 | Interstate |
| Outdoor Architects Incorporated | 1056148 | 3 | 3 | Interstate |
| White Contracting INC | 1081641 | 3 | 2 | Intrastate |
| Meadowridge Landscaping CO INC | 1238868 | 3 | 3 | Intrastate |
| C Douglas Stapf & Company | 1394033 | 3 | 2 | Intrastate |
| Absolutely Perfect Catering | 1636338 | 3 | 12 | Intrastate |
| Colemans Flooring Service INC | 1701743 | 3 | 1 | Intrastate |
| Mace Enterprises LLC | 1810536 | 3 | 6 | Intrastate |
| Green Valley Landscaping | 2077668 | 3 | 2 | Interstate |
| Cover All Design Home Improvement | 2106422 | 3 | 5 | Intrastate |
| Event Pro | 2314627 | 3 | 10 | Interstate |
| Cj Browns Automotive LLC | 2327246 | 3 | 1 | Intrastate |
| Nichols Borthers Construction LLC | 2365324 | 3 | 10 | Intrastate |
| 4438727277 | 2455331 | 3 | 4 | Interstate |
| Flatbed Logistics LLC | 2550969 | 3 | 1 | InterstateHazmat |
| Total Image Services | 2931272 | 3 | 1 | Intrastate |
| Jds Landscaping Services LLC | 3399840 | 3 | 2 | IntrastateHazmat |
| P & S Transport LLC | 3767109 | 3 | 3 | Interstate |
| Potomac Valley Installations LLC | 4372576 | 3 | 4 | Interstate |
| Jabcrist Fiber Installation LLC | 4462291 | 3 | 1 | InterstateHazmat |
| Overland Lanes LLC | 4464144 | 3 | 3 | Interstate |
| The Green Tree LLC | 4481328 | 3 | 4 | Interstate |
| Mr Scrapy LLC | 4897844 | 3 | 2 | Intrastate |
| Stevens Auto Recovery & Towing Svc | 545840 | 2 | 1 | Intrastate |
| Global Trading Unlimited INC | 637377 | 2 | 2 | Interstate |
| Arctic Fireproofing INC | 856697 | 2 | 2 | Interstate |
| Solo Furniture Installer And Liquidator Incorporate | 1479313 | 2 | 2 | Interstate |
| Ben Bauman & Sons LLC | 1495880 | 2 | 1 | Intrastate |
| Horizons Unlimited Home Improvements INC | 1541151 | 2 | 2 | Interstate |
| Eastcoast Exteriors | 1563929 | 2 | 2 | Interstate |
| Imperial Stone Paving Corporation | 1697229 | 2 | 1 | Interstate |
| Elkridge Towing LLC | 1722637 | 2 | 1 | IntrastateHazmat |
| Elkridge Towing | 1763257 | 2 | 3 | Intrastate |