| Capital Shipping LLC | 3702263 | 116 | 202 | Interstate |
| Orndorff & Spaid INC | 329686 | 65 | 46 | InterstateHazmat |
| Superior Mechanical Services INC | 1077649 | 65 | 65 | Interstate |
| Olney Masonry Corporation | 522258 | 60 | 60 | Interstate |
| Excellent Tours | 1512245 | 57 | 87 | Interstate |
| Sun Services LLC | 1241633 | 51 | 39 | Interstate |
| Pcm Services | 665093 | 46 | 39 | Interstate |
| Global Solutions Services LLC | 3308320 | 46 | 75 | InterstateHazmat |
| Overhead Door Company Of Washington Dc | 405597 | 37 | 37 | InterstateHazmat |
| Murphy Pipeline Contractors A Puris Company | 2301715 | 36 | 32 | InterstateHazmat |
| Jl City Concrete INC | 2521833 | 35 | 35 | Interstate |
| R D Bean INC | 357111 | 33 | 18 | InterstateHazmat |
| Adirondack Tree Experts | 1230285 | 30 | 30 | Interstate |
| Worldshine Adult Medical Day Care Center | 3074590 | 28 | 28 | Intrastate |
| Monumental Markets | 878558 | 21 | 21 | Interstate |
| First Onsite Property Restoration | 935718 | 21 | 38 | Interstate |
| Johnson Crane Service INC | 506252 | 20 | 8 | Interstate |
| Wm Enterprise LLC | 3240952 | 20 | 20 | Interstate |
| Bulldog Distribution Trucking LLC | 1993539 | 19 | 11 | Interstate |
| W E Bowers INC | 691792 | 18 | 12 | Interstate |
| B & R Associates | 475013 | 17 | 15 | Interstate |
| O'brien Bus Service INC | 618101 | 15 | 9 | Interstate |
| Asrc Communications Ltd | 2924411 | 14 | 32 | IntrastateHazmat |
| Rapid Services Group INC | 4175448 | 14 | 14 | Intrastate |
| B & R Siding INC | 2056049 | 13 | 10 | Interstate |
| United Rigging | 45718 | 12 | 9 | Interstate |
| Sundun | 452459 | 12 | 11 | Interstate |
| U S Beef INC | 507711 | 12 | 12 | Interstate |
| Edge Energy | 2066930 | 12 | 15 | Interstate |
| Dalton Electric Service INC | 1328046 | 11 | 1 | Interstate |
| Jps | 473818 | 10 | 3 | Interstate |
| Pamex Food INC | 823649 | 10 | 8 | Interstate |
| DBA Freestate Electrical Construction Company DBA Freestate Electrical Service Company DBA Ta Beach | 824341 | 10 | 6 | Interstate |
| J & M Utlities | 1060167 | 10 | 12 | Intrastate |
| Roque Trucking LLC | 2055079 | 10 | 10 | Intrastate |
| Sdj Trucking LLC | 3740628 | 10 | 4 | Interstate |
| J P Seworootor INC | 4407769 | 10 | 6 | Interstate |
| College Park Paving | 337865 | 9 | 7 | Interstate |
| N Z I Construction Corp | 400727 | 9 | 7 | Intrastate |
| The James Myers CO INC | 421679 | 9 | 4 | InterstateHazmat |
| A Marquez Services INC | 968280 | 9 | 9 | Intrastate |
| Ed's Tree Service INC | 1461993 | 9 | 9 | Interstate |
| District Concrete LLC | 2837433 | 9 | 6 | Interstate |
| Richard Transportation LLC | 4434638 | 9 | 9 | Interstate |
| Browns Welding & Crane Service INC | 570864 | 8 | 4 | Interstate |
| Choice Concrete Construction INC | 1015724 | 8 | 8 | Interstate |
| M & R Contracting Services INC | 1421193 | 8 | 2 | Interstate |
| Pcm Services | 1624373 | 8 | 6 | InterstateHazmat |
| Diaz Trucking INC | 1701737 | 8 | 8 | Interstate |
| Lynn Wholesale Flooring | 2205010 | 8 | 6 | Interstate |
| Perfect Auto LLC | 7696956 | 8 | 6 | InterstateHazmat |
| Ally Moving LLC | 2845439 | 7 | 6 | Interstate |
| Office Movers Express | 3302289 | 7 | 8 | Interstate |
| Rrf Trucking LLC | 4101034 | 7 | 7 | Interstate |
| Affluent Luxe Rentals | 4290187 | 7 | 6 | Interstate |
| Clevenger Corporation | 463696 | 6 | 3 | Interstate |
| Atlantic General Contractors INC | 1184815 | 6 | 2 | Interstate |
| C & R Construction LLC | 2828693 | 6 | 6 | Intrastate |
| Hoffberger Moving Systems | 4381487 | 6 | 6 | Interstate |
| Jolles Plumbing Air Conditiong & Heating | 436380 | 5 | 4 | Intrastate |
| Minkoff Company INC | 476722 | 5 | 5 | Interstate |
| Carbo-Mix Dispenser Of Md | 504845 | 5 | 5 | Interstate |
| N & S Towing INC | 668943 | 5 | 3 | Interstate |
| Kc Company INC | 806035 | 5 | 5 | Intrastate |
| Lr Trucking INC | 1132433 | 5 | 5 | Interstate |
| Beltsville Utility & Rental INC | 1542892 | 5 | 4 | Intrastate |
| Britos Distributor INC | 1563603 | 5 | 5 | Interstate |
| Owens Corning Basement Finishing Systems | 2133753 | 5 | 5 | Interstate |
| Sardis Pollo A La Brasa | 2374644 | 5 | 5 | Interstate |
| H & H Autobody & Towing LLC | 2388340 | 5 | 1 | Interstate |
| Leonel Lima Morales | 3162979 | 5 | 1 | Intrastate |
| Pella Windows And Doors | 3222425 | 5 | 5 | Interstate |
| Redwood Landscaping & Tree Service LLC | 3350509 | 5 | 2 | InterstateHazmat |
| Jeg Plumbing LLC | 3440428 | 5 | 4 | Intrastate |
| La Ricura Foods Maryland Ltd | 6832271 | 5 | 5 | Interstate |
| Wm E Kingswell INC | 418758 | 4 | 4 | Interstate |
| B & P Utilities INC | 1064648 | 4 | 4 | Intrastate |
| L E Blue And Associates INC | 1091412 | 4 | 4 | Intrastate |
| Atlantic Refinishing & Restoration INC | 1190911 | 4 | 4 | Interstate |
| Consolidated Waterproofing Contractors | 1318854 | 4 | 4 | Interstate |
| Catering By Uptown | 1394164 | 4 | 6 | Intrastate |
| Jrm Concrete | 1750082 | 4 | 2 | Intrastate |
| Jorge Andrade | 1777212 | 4 | 2 | Intrastate |
| Beltsville Refuse Service | 1789048 | 4 | 3 | Intrastate |
| Prince George Towing And Recovery LLC | 1888569 | 4 | 4 | IntrastateHazmat |
| S Albert Glass CO INC | 1918904 | 4 | 5 | Intrastate |
| Green Bay Landscaping LLC | 2164449 | 4 | 2 | Interstate |
| East Quality Concrete LLC | 2327810 | 4 | 3 | Interstate |
| Tri-State Hospitality | 2447093 | 4 | 4 | Interstate |
| Abm Facility Support Services | 3231169 | 4 | 6 | Intrastate |
| Hannan Crain Service LLC | 3260890 | 4 | 3 | IntrastateHazmat |
| A1 Property Management INC | 3346268 | 4 | 4 | IntrastateHazmat |
| Commonwealth Joe Commonwealth Joe Coffee Roasters | 3404474 | 4 | 7 | InterstateHazmat |
| Alma Express LLC | 3518685 | 4 | 4 | Interstate |
| Prism Specialties Of Dc Md And Va Metro Art Of Dc Md And Va Metro Ers Of Dc Md And Va Metro | 3533963 | 4 | 8 | Interstate |
| Sl Landscaping INC | 3641717 | 4 | 4 | Intrastate |
| Cerno Communication LLC | 3674955 | 4 | 6 | Interstate |
| Millennium Transportation Services LLC | 3717078 | 4 | 4 | Interstate |
| Vargas Reliable Carriers LLC | 3749479 | 4 | 4 | Interstate |
| Zewd LLC | 4222993 | 4 | 3 | InterstateHazmat |