| Climatecare Services | 8187103 | 49 | 72 | Interstate |
| Patuxent Materials INC | 517342 | 41 | 39 | Interstate |
| Lorenzo Construction CO LLC | 2536761 | 30 | 30 | Intrastate |
| Delmarva Site Development INC | 1053810 | 25 | 39 | InterstateHazmat |
| Bay Ready Mix Concrete LLC | 1876049 | 18 | 9 | Intrastate |
| Specialized Services INC | 525219 | 17 | 16 | Interstate |
| C S Lawn & Landscape INC | 1089936 | 12 | 15 | Intrastate |
| Bowen Remodeling & Design | 2549941 | 12 | 3 | Intrastate |
| Marty Mows | 1923723 | 11 | 8 | Intrastate |
| Patuxent Roll Off LLC | 729912 | 9 | 9 | Interstate |
| Seasonal Changes Lawns & Landscapes | 1053827 | 6 | 7 | Intrastate |
| Sunset Pool Contractors LLC | 1239130 | 6 | 6 | Interstate |
| Chimney Works LLC | 3278161 | 6 | 6 | Interstate |
| A&f General Contractor LLC | 3303632 | 6 | 6 | Interstate |
| Increte Of Maryland INC | 1055177 | 5 | 6 | Intrastate |
| Terra Nova Design INC | 1335392 | 5 | 6 | Interstate |
| Maryland Mold And Waterproofing LLC | 2820814 | 5 | 5 | Interstate |
| Standard Concrete Of Maryland | 3633084 | 5 | 5 | InterstateHazmat |
| Cunningham Sand & Gravel | 1117959 | 4 | 3 | Intrastate |
| Clayton Landscaping Technologies INC | 1269513 | 4 | 4 | Intrastate |
| Alloy Wheel Repair Specialists | 1903438 | 4 | 5 | Interstate |
| Ram Jack Chesapeake | 3099004 | 4 | 3 | InterstateHazmat |
| Jay Vending Company | 3186498 | 4 | 1 | InterstateHazmat |
| Pacifics Irrigation & Lighting LLC | 3890088 | 4 | 3 | Intrastate |
| Journeyman Mechanical Contractors INC | 500228 | 3 | 3 | Interstate |
| Sommer's Lawn & Landscape INC | 1073571 | 3 | 4 | Intrastate |
| Potomac Testing INC | 1867526 | 3 | 3 | Interstate |
| Bartons Tree Care LLC | 2036389 | 3 | 2 | Intrastate |
| Humdinger Productions | 2781932 | 3 | 8 | Interstate |
| Cynergy Electric Company INC | 2793783 | 3 | 3 | Interstate |
| Ace Home Improvements LLC | 3310695 | 3 | 3 | Interstate |
| Jw Marshall Aerial Lift | 3672658 | 3 | 1 | Intrastate |
| Wilson Companies LLC | 4216147 | 3 | 3 | Interstate |
| Legacy Companies INC | 4225928 | 3 | 3 | Interstate |
| Clifton M Hedley | 1019500 | 2 | 2 | Intrastate |
| B & D Provisions INC | 1108943 | 2 | 3 | Intrastate |
| Timberline Tree Service INC | 1229243 | 2 | 3 | Interstate |
| Aggregate Industries Building Materials LLC | 1610079 | 2 | 3 | Intrastate |
| America's Best Service INC | 2089311 | 2 | 4 | Interstate |
| Richard Tansey Construction INC | 2943960 | 2 | 1 | Intrastate |
| Harbor Roofing And Contracting INC | 2945560 | 2 | 3 | Interstate |
| Davest LLC | 3272157 | 2 | 1 | Interstate |
| Belt Built Contracting LLC | 3366177 | 2 | 2 | Intrastate |
| R&a Truckin LLC | 3618404 | 2 | 2 | Interstate |
| Bowen Remodeling & Design | 3762539 | 2 | 2 | Intrastate |
| Fca Moving Services LLC | 3997568 | 2 | 2 | Interstate |
| Breakthrough Worldwide LLC | 4130104 | 2 | 2 | Interstate |
| Transition Truck | 4349463 | 2 | 3 | Interstate |
| G&p Consulting | 4430504 | 2 | 3 | Intrastate |
| The Cox Group LLC | 8698903 | 2 | 2 | Interstate |
| Solsound INC | 983943 | 1 | 2 | Interstate |
| Capital Concrete Foundations INC | 1083658 | 1 | 1 | Intrastate |
| Wells & Associates INC | 1219729 | 1 | 1 | Interstate |
| All Around Edging LLC | 1333528 | 1 | 1 | Intrastate |
| Lechariott Enterprises LLC | 1366573 | 1 | 1 | Intrastate |
| Maryland Elevator Services INC | 1446467 | 1 | 1 | Intrastate |
| A To Z Generators | 1501718 | 1 | 3 | Interstate |
| Mb Nichols Contracting | 1563201 | 1 | 1 | Intrastate |
| Caffes Construction INC | 1563415 | 1 | 2 | Intrastate |
| Brady's Auto Care INC | 1574285 | 1 | 1 | InterstateHazmat |
| Karol Windows Incorporated | 1622833 | 1 | 1 | Interstate |
| Allen Hall & Sons | 1747458 | 1 | 4 | Interstate |
| Sm Gutters Va LLC | 1795974 | 1 | 1 | Intrastate |
| Sign And Lighting Solutions INC | 1877004 | 1 | 1 | Intrastate |
| Michael A Fiels | 2064599 | 1 | 1 | Intrastate |
| Bay Lighting Services Company LLC | 2082971 | 1 | 1 | Interstate |
| Premier Lawn Care INC | 2282000 | 1 | 1 | Intrastate |
| Crofton Piano Company | 2354151 | 1 | 1 | Intrastate |
| Solstice Kitchen And Bath | 2382596 | 1 | 2 | Intrastate |
| 2012 | 2409548 | 1 | 1 | Intrastate |
| Trappro | 2412506 | 1 | 1 | Interstate |
| Grove Heating And Cooling INC | 2418393 | 1 | 1 | Intrastate |
| N & V Contracting INC | 2423386 | 1 | 1 | Intrastate |
| Teodor Stronciu | 2429197 | 1 | 1 | Intrastate |
| Verticon INC | 2470064 | 1 | 1 | Intrastate |
| Martin C Pena | 2475122 | 1 | 1 | Intrastate |
| David Russell | 2499814 | 1 | 1 | Intrastate |
| Green Beret Vending INC | 2502354 | 1 | 1 | Intrastate |
| Servpro Of Crofton Gambrills Odenton | 2526990 | 1 | 4 | Intrastate |
| Eastern Fire Protection Services INC | 2871067 | 1 | 1 | Interstate |
| Easy Hauling Services LLC | 2892980 | 1 | 2 | Intrastate |
| Eric S Ruff, Authorized Snap On Tools Franchisee | 2914197 | 1 | 2 | Intrastate |
| Cr General Construction Services LLC | 3023532 | 1 | 1 | Intrastate |
| Eastern Regional Electric | 3031217 | 1 | 3 | Intrastate |
| D&h Demolition LLC | 3032287 | 1 | 1 | Intrastate |
| Saco Construction | 3072696 | 1 | 2 | Intrastate |
| Brightview Crofton Riverwalk | 3379172 | 1 | 6 | Interstate |
| Capital Sheet Metal Services | 3429709 | 1 | 1 | Interstate |
| Independent Courier | 3431293 | 1 | 1 | Intrastate |
| Mejia Landscaping INC | 3431977 | 1 | 2 | Interstate |
| Ucda Services LLC | 3483180 | 1 | 1 | InterstateHazmat |
| Smart Transport LLC | 3530089 | 1 | 2 | IntrastateHazmat |
| Hicks Hauling LLC | 3571672 | 1 | 1 | Interstate |
| One Nation Landscaping LLC | 3620699 | 1 | 1 | Intrastate |
| Darko Logistics LLC | 3643548 | 1 | 2 | Interstate |
| Logistic Soldiers LLC | 3794788 | 1 | 1 | Interstate |
| Chesapeake Production Services LLC | 3832541 | 1 | 1 | Interstate |
| Heritage Mechanical LLC | 3863648 | 1 | 2 | Interstate |
| Big Show Game Truck LLC | 3876427 | 1 | 1 | Intrastate |
| Jamesbrand Trucking & Logistics LLC | 3917099 | 1 | 1 | Interstate |