| Concrete General INC | 362184 | 104 | 106 | Interstate |
| Casella Waste | 3360628 | 69 | 64 | Interstate |
| Town And Country Movers INC | 418499 | 64 | 72 | InterstateHazmat |
| Coughlin INC | 1079950 | 52 | 52 | Interstate |
| E&n Trucking LLC | 3588170 | 45 | 45 | Interstate |
| Rainbow Of Montgomery County | 2638370 | 34 | 13 | Intrastate |
| Ecology Services Municipal Operations LLC | 1781952 | 32 | 32 | Intrastate |
| Cheasapeake Petroleum & Supply CO INC | 455062 | 31 | 21 | Interstate |
| Ccacc Adhc | 2957460 | 30 | 33 | Intrastate |
| Jk Moving Services | 1300300 | 29 | 21 | Interstate |
| Next Day Dumpsters | 2907715 | 27 | 28 | Interstate |
| Beautiful Country Landscape LLC | 1900135 | 25 | 19 | Intrastate |
| Selective Hauling LLC | 2007975 | 24 | 19 | Interstate |
| Power Transport Systems LLC | 2185026 | 23 | 20 | InterstateHazmat |
| Robert A Tull INC | 1036422 | 20 | 9 | Intrastate |
| Rippeon Equipment Group LLC | 3077923 | 20 | 22 | Interstate |
| Nourish | 3865918 | 20 | 24 | Intrastate |
| Woodmac INC | 705726 | 17 | 10 | Interstate |
| 1-800-Got-Junk | 1093772 | 17 | 26 | Intrastate |
| Drinkmore Water | 4086265 | 17 | 12 | Interstate |
| Airpark Towing LLC | 485916 | 16 | 14 | InterstateHazmat |
| Willard Packaging CO INC | 394624 | 15 | 12 | Interstate |
| Busy Service INC | 1230172 | 15 | 9 | Interstate |
| Loving Care | 2328956 | 15 | 13 | Intrastate |
| Refuse-Removal Results LLC | 3054193 | 15 | 13 | Intrastate |
| Benitez Towing LLC | 6334140 | 15 | 5 | InterstateHazmat |
| Construction Trades Services INC | 516926 | 14 | 12 | Interstate |
| Family Services INC | 2110455 | 14 | 30 | Intrastate |
| Jmr Trucking INC | 2855021 | 14 | 14 | Interstate |
| Eden Design Group LLC | 3104887 | 14 | 13 | Intrastate |
| Interstate Corporation | 608938 | 13 | 3 | InterstateHazmat |
| Selective Demolition LLC | 930596 | 13 | 10 | Interstate |
| Church Of The Redeemer | 2181468 | 13 | 100 | Interstate |
| Worldshine Adult Medical Day Care Center | 2538433 | 13 | 20 | Intrastate |
| Breitzkeandson | 3663219 | 13 | 2 | Intrastate |
| Delmar Deli Provisions LLC | 1563942 | 12 | 19 | Interstate |
| Mercado & G LLC | 2928414 | 12 | 9 | Interstate |
| Home Improvement | 3852577 | 12 | 24 | Interstate |
| Allstage And Sound INC | 647467 | 11 | 28 | Interstate |
| Ray D Magaha Excavating CO INC | 1115901 | 11 | 6 | Intrastate |
| American Service And Installation Corporation | 1696211 | 11 | 12 | Interstate |
| Eastland Movers LLC | 3426104 | 11 | 15 | Interstate |
| Tmg Holdings LLC | 3684544 | 11 | 11 | Interstate |
| Gazebo Gardens | 1152838 | 10 | 5 | Intrastate |
| American Lawn & Landscape INC | 1182191 | 10 | 10 | Intrastate |
| Mr Georges Driving School INC | 1727951 | 10 | 5 | Intrastate |
| Kidsco INC | 3022402 | 10 | 30 | Intrastate |
| Mek Concrete LLC | 3116769 | 10 | 4 | Intrastate |
| Next Day Dumpsters Nc LLC | 3672999 | 10 | 9 | Interstate |
| Deneau Construction INC | 405037 | 9 | 6 | InterstateHazmat |
| Commonwealth Movers INC | 476249 | 9 | 9 | Interstate |
| Emerald Landscaping Corporation | 1048555 | 8 | 5 | Interstate |
| Stone Works INC | 1146682 | 8 | 8 | Interstate |
| Stolburg Landscaping LLC | 1331843 | 8 | 5 | Intrastate |
| Superior Facilities Management Services | 2093443 | 8 | 4 | Interstate |
| Helix Moving And Storage | 2358272 | 8 | 17 | Interstate |
| Capital Carpets INC | 3431333 | 8 | 10 | Intrastate |
| Gerstel Office Furniture INC | 423151 | 7 | 8 | Interstate |
| Attronica | 841630 | 7 | 5 | Interstate |
| John F Tredway & CO | 1176100 | 7 | 1 | InterstateHazmat |
| Aa Refuse INC | 1405457 | 7 | 6 | Intrastate |
| Laytonsville Turf Farm LLC | 2027929 | 7 | 7 | Interstate |
| King Of Landscaping LLC | 2826093 | 7 | 7 | Intrastate |
| Del Landscapes | 3044731 | 7 | 3 | Intrastate |
| Singleton Electric Company INC | 511029 | 6 | 2 | Interstate |
| Diversified Laboratory Repair INC | 1329233 | 6 | 10 | InterstateHazmat |
| Hope Builders | 1364602 | 6 | 14 | Interstate |
| Broadleaf Grounds Works | 1375695 | 6 | 6 | InterstateHazmat |
| Brian Trucking INC | 1491593 | 6 | 6 | Interstate |
| Bargain Movers | 1866228 | 6 | 7 | Interstate |
| Pj Towing And Services LLC | 2193712 | 6 | 4 | Interstate |
| The Maryland Egress Specialists | 2905663 | 6 | 3 | Intrastate |
| Movers On The Way & Storage LLC | 3587943 | 6 | 5 | Interstate |
| Dme Express LLC | 3705765 | 6 | 9 | InterstateHazmat |
| Spilled Milk Catering | 3802394 | 6 | 6 | Interstate |
| Bob's Transport | 890989 | 5 | 5 | Interstate |
| Interstate Battery | 1105215 | 5 | 6 | Intrastate |
| A & M Repair And Towing INC | 1162531 | 5 | 4 | Intrastate |
| Eureka Concrete Construction INC | 1192879 | 5 | 6 | Interstate |
| 5 Star Trucking | 1297566 | 5 | 5 | Intrastate |
| Storm Water Management Facilities Repair Group INC | 1357322 | 5 | 5 | Intrastate |
| Mvd Movers LLC | 2053312 | 5 | 4 | Interstate |
| Benitez Towing LLC | 2308688 | 5 | 5 | InterstateHazmat |
| Envirenew INC | 2336008 | 5 | 5 | Intrastate |
| A Few Good College Men Movers LLC | 2532940 | 5 | 8 | Interstate |
| Oakridge Landscaping & Construction | 2547943 | 5 | 4 | Interstate |
| Simply Fresh Events LLC | 2633614 | 5 | 5 | Interstate |
| New Generation Enterprise INC | 2876709 | 5 | 5 | Intrastate |
| Dac Trucking LLC | 2898457 | 5 | 3 | Intrastate |
| Jr Moving Corp | 2950322 | 5 | 6 | Interstate |
| Mb Trucking INC | 2960153 | 5 | 4 | Interstate |
| Legacy Auto Transport LLC | 3107317 | 5 | 5 | InterstateHazmat |
| Wales Landscaping | 3652345 | 5 | 5 | Intrastate |
| Mia & Bella Trasportation LLC | 3769653 | 5 | 4 | Interstate |
| Zapp LLC | 3930563 | 5 | 5 | InterstateHazmat |
| Borba Transport LLC | 3967209 | 5 | 5 | Interstate |
| Rm Construction Services INC | 4008344 | 5 | 5 | InterstateHazmat |
| Griffin Roofing | 4308345 | 5 | 10 | Intrastate |
| Rockville Steel & M F G | 873036 | 4 | 6 | Interstate |
| Bethesda Lawn & Maintenance INC | 988334 | 4 | 4 | Intrastate |