| Merrimack Education Center | 2261399 | 116 | 85 | Intrastate |
| Emanouil Brothers INC | 42493 | 38 | 46 | Interstate |
| Hub Foundation Company Incorporated | 1597756 | 37 | 29 | InterstateHazmat |
| Sterling Corporation-Office Svs Div | 592850 | 23 | 14 | InterstateHazmat |
| Ferreira's | 42690 | 22 | 12 | InterstateHazmat |
| Lifelinks INC | 3371824 | 20 | 20 | Intrastate |
| Environmental Pools INC | 688570 | 16 | 27 | Interstate |
| Colonial Oil | 751537 | 16 | 6 | InterstateHazmat |
| Village Services Corporation | 3239267 | 15 | 15 | Interstate |
| Finest Builders INC | 477667 | 14 | 13 | Intrastate |
| Raymond F Bouley Landscaping INC | 1371587 | 12 | 15 | IntrastateHazmat |
| Paving | 3370034 | 12 | 6 | InterstateHazmat |
| Allied Paving Corp | 441898 | 10 | 9 | Interstate |
| Christopher's Towing | 650297 | 10 | 6 | InterstateHazmat |
| Hm Soares Construction & Landscape INC | 3004010 | 10 | 8 | Interstate |
| Hardy Doric INC | 314891 | 6 | 5 | Interstate |
| Chelmsford Lumber Company INC | 2173606 | 6 | 3 | Interstate |
| Deluxe Limousine | 2985742 | 6 | 5 | Interstate |
| Fougere Landscaping INC | 3154792 | 6 | 6 | InterstateHazmat |
| Milltown Plumbing And Heating INC | 4122592 | 6 | 8 | Interstate |
| Twin Bros Party Rentals | 4164058 | 6 | 3 | Interstate |
| Chelmsford Crane Service INC | 718681 | 5 | 6 | Interstate |
| Cassal Stone Wall Incorporated | 2133143 | 5 | 2 | Interstate |
| Aucoin Telecom & Utility Construction LLC | 2386180 | 5 | 5 | Interstate |
| David G Vail CO INC | 3179707 | 5 | 1 | Intrastate |
| Pespisa Company | 3217799 | 5 | 4 | Intrastate |
| Farmers And Cooks Craft Meats | 6018374 | 5 | 8 | Interstate |
| Kidco Paving | 524612 | 4 | 1 | Interstate |
| Allied Equipment INC | 1406177 | 4 | 4 | Interstate |
| Gervais Lawn Care | 2265700 | 4 | 4 | Intrastate |
| Dun-Rite Landscaping | 3192406 | 4 | 4 | Intrastate |
| Arbor East Tree Service INC | 3320290 | 4 | 3 | Intrastate |
| Stott Brothers Snow Plowing | 3363046 | 4 | 4 | Intrastate |
| Marchand Oil INC | 392242 | 3 | 4 | InterstateHazmat |
| Rowsell Bros | 392323 | 3 | 3 | Intrastate |
| Res Com Construction | 467301 | 3 | 2 | Interstate |
| R M Kaknes Contracting | 1173118 | 3 | 1 | Interstate |
| Performance Building CO INC | 2080481 | 3 | 3 | Interstate |
| Gustavo Preston | 3051387 | 3 | 21 | Interstate |
| Red Wagon Landscaping | 3256965 | 3 | 4 | Intrastate |
| Move It Or Lose It LLC | 3318599 | 3 | 2 | Interstate |
| General Contracting | 3364804 | 3 | 2 | Intrastate |
| Charles G Zaher DBA Buchan Construction | 3373961 | 3 | 1 | Interstate |
| C R Oneill CO | 3375811 | 3 | 3 | Intrastate |
| Courtyard Concepts | 3380141 | 3 | 4 | Intrastate |
| Blackout Corporation | 3430284 | 3 | 2 | Intrastate |
| Pro Gardener And Landscape LLC | 3477522 | 3 | 3 | Intrastate |
| Masonry Pro INC | 3731404 | 3 | 1 | Intrastate |
| Blue Fox Carriers INC | 4053129 | 3 | 3 | InterstateHazmat |
| Brooks Automation US LLC | 4061259 | 3 | 2 | Interstate |
| Kowa Logistics LLC | 4148852 | 3 | 4 | Interstate |
| Marvelle Excavation INC | 4531331 | 3 | 4 | Interstate |
| Waddington North America INC | 158812 | 2 | 4 | Interstate |
| Kendall Boiler & Tank CO INC | 433444 | 2 | 4 | Interstate |
| Freudenberg Filtration Technologies LP | 486658 | 2 | 4 | Intrastate |
| Allied Fuel INC | 671828 | 2 | 1 | Intrastate |
| Pat Daley And Son INC | 1496268 | 2 | 4 | Intrastate |
| Murray Home Improvement INC | 2353155 | 2 | 1 | Interstate |
| Joseph's Landscaping LLC | 2896950 | 2 | 1 | IntrastateHazmat |
| Mix INC | 3114055 | 2 | 1 | Intrastate |
| New England Pool Remodeling LLC | 3140516 | 2 | 2 | Intrastate |
| New England Sports Turf LLC | 3143130 | 2 | 1 | InterstateHazmat |
| Raharvey | 3238441 | 2 | 1 | Intrastate |
| Bwh Landscaping | 3310390 | 2 | 2 | Intrastate |
| Four Seasons Greenery | 3362590 | 2 | 7 | Intrastate |
| Lims Property Maintenance Contractors | 3378599 | 2 | 1 | Intrastate |
| Mcginty Landscape Construction | 3420767 | 2 | 1 | Intrastate |
| Transpex INC | 3447982 | 2 | 1 | InterstateHazmat |
| Bouley Excavation LLC | 3572771 | 2 | 1 | Intrastate |
| Flaherty Equipment Sales Corporation | 3747697 | 2 | 2 | Intrastate |
| Grooveboston LLC | 3798980 | 2 | 5 | Interstate |
| Jnz Industries LLC | 4396449 | 2 | 3 | Interstate |
| Harte-Hanks Logistics LLC | 317384 | 1 | 1 | Interstate |
| Anthony's Loam CO | 399499 | 1 | 1 | Intrastate |
| Sanborn Sewer Service INC | 473123 | 1 | 2 | Interstate |
| Bill Douglas | 481617 | 1 | 2 | InterstateHazmat |
| Jay Engineering Corp | 639693 | 1 | 2 | Intrastate |
| Rillahan & Associates INC | 1375070 | 1 | 2 | Interstate |
| S G T Excavation INC | 1601983 | 1 | 2 | Intrastate |
| Raymond Derosa | 1648062 | 1 | 1 | Intrastate |
| Dale Parent | 1657730 | 1 | 1 | Intrastate |
| School Street Truck Parts | 1930653 | 1 | 1 | Interstate |
| Elm Hill Breeding Labs INC | 2174254 | 1 | 1 | Interstate |
| Rocky's Maintenance Service LLC | 2287684 | 1 | 4 | Interstate |
| Carter Sterling | 2353795 | 1 | 2 | Intrastate |
| The Open Pantry Of Greater Lowell | 2555380 | 1 | 1 | Intrastate |
| Weza Landscaping & Construction | 2983606 | 1 | 1 | Intrastate |
| Mec Electrical And Technologies INC | 3093553 | 1 | 1 | Interstate |
| Chelmsford Fireplace LLC | 3177427 | 1 | 1 | Intrastate |
| East Coast Cuts Landscaping | 3178649 | 1 | 1 | Intrastate |
| Performance Building Company INC | 3183258 | 1 | 2 | Intrastate |
| Mzk Transportation LLC | 3185596 | 1 | 4 | Interstate |
| Whitehouse Enterprises LLC | 3194073 | 1 | 3 | Intrastate |
| Patriot Ambulance INC | 3205969 | 1 | 2 | Intrastate |
| Brian Donnelly | 3212255 | 1 | 2 | Intrastate |
| Brooks Precision Machining INC | 3265237 | 1 | 24 | Intrastate |
| Edwards Vacuum LLC | 3318724 | 1 | 4 | Intrastate |
| Aggregate Service & Supply INC | 3328713 | 1 | 1 | Intrastate |
| The Siding Guy INC | 3364466 | 1 | 2 | Intrastate |
| Loiselle Lawn Care | 3366966 | 1 | 1 | Intrastate |