| Connetquot Central School District | 702796 | 218 | 119 | Intrastate |
| Ahrc Suffolk | 1772721 | 121 | 300 | Intrastate |
| Maya Streamline Solutions INC | 4443702 | 110 | 105 | Interstate |
| Hinck Electrical Contractor INC | 1742785 | 48 | 48 | Intrastate |
| Norris Food Services | 967180 | 33 | 62 | Interstate |
| Village Plumbing & Heating Ny INC | 1572083 | 28 | 28 | Intrastate |
| Lightning Transport INC | 2489206 | 26 | 63 | Interstate |
| Commander Electric INC | 1390679 | 25 | 13 | Intrastate |
| Delfino Insulation CO INC | 1362312 | 23 | 20 | Intrastate |
| Jci | 582211 | 20 | 18 | Interstate |
| Varsity Home Service Company INC | 1713453 | 17 | 25 | Intrastate |
| 7bus | 1860452 | 17 | 42 | Intrastate |
| Ray The Plumber | 2141950 | 15 | 10 | Intrastate |
| DBA Transportation INC | 2400144 | 15 | 15 | Intrastate |
| Citnalta Construction Corp | 9054123 | 14 | 10 | Intrastate |
| Bohemia Garden Center INC | 1884344 | 13 | 4 | Intrastate |
| Precision Aire INC | 2782960 | 13 | 13 | IntrastateHazmat |
| Fanelli Sanitation Waste Corp | 1168037 | 12 | 9 | Intrastate |
| Zoom Drain & Cesspool Direct Drainage | 2593192 | 12 | 8 | Intrastate |
| Fairway Burner Service INC | 1603750 | 11 | 12 | Intrastate |
| Sir Oliver Limousine | 1761723 | 11 | 17 | Intrastate |
| Ny Tent LLC | 2491154 | 11 | 14 | Interstate |
| A&a Transportation US LLC | 3940962 | 11 | 4 | Intrastate |
| American Interstate Signcrafters | 1244139 | 10 | 6 | Interstate |
| Northeast Equipment Sales Corp | 2522517 | 10 | 10 | Intrastate |
| Northstar Electrical Services & Contractors INC | 4423823 | 10 | 11 | Intrastate |
| Jpg Electric | 1527749 | 9 | 6 | Intrastate |
| Tiki Industries INC | 2925866 | 9 | 9 | Intrastate |
| Petes Fuel Oil & Pjp Petroleum Products | 1295098 | 8 | 4 | Intrastate |
| Piping Rock Health Products LLC | 2256784 | 8 | 10 | Intrastate |
| C And L Aluminum And Glass INC | 2447805 | 8 | 12 | Intrastate |
| Judge Family Enterprises INC | 2474236 | 8 | 7 | Intrastate |
| Home Improvement Contractor | 3057275 | 8 | 4 | Intrastate |
| Bargainmoulding | 3519931 | 8 | 10 | Interstate |
| Oxcrete Leasing INC | 833152 | 7 | 5 | Intrastate |
| Suffolk County Deck And Fence | 1468212 | 7 | 4 | Intrastate |
| Trius INC | 1611255 | 7 | 22 | IntrastateHazmat |
| Accent Estates | 2144101 | 7 | 7 | Intrastate |
| Contract Glazing | 2479801 | 7 | 7 | Intrastate |
| Winters Residentail Waste Services LLC | 2496110 | 7 | 6 | Intrastate |
| Brentwood Door CO | 4442347 | 7 | 7 | Intrastate |
| Classic Construction LLC | 1229121 | 6 | 6 | Intrastate |
| K & P Trucking And Delivery Service INC | 1539580 | 6 | 6 | Intrastate |
| All Suffolk Plumbing Contractors | 1599957 | 6 | 6 | Intrastate |
| Eastern Coffee Products INC | 1605011 | 6 | 6 | Intrastate |
| Zippboxx | 3077817 | 6 | 6 | Interstate |
| Mass Merchandising | 1027203 | 5 | 5 | Interstate |
| G Melomo INC | 1481834 | 5 | 3 | Intrastate |
| Jc Steel Corp | 1646958 | 5 | 4 | Intrastate |
| Advanced Epoxy Flooring | 1740802 | 5 | 3 | Interstate |
| Jl Home Design | 1759722 | 5 | 5 | Intrastate |
| New Dimension Residential And Commerical INC | 2181162 | 5 | 5 | Intrastate |
| Global Freight Management | 2262854 | 5 | 5 | Intrastate |
| Mr D's Self Storage | 2267823 | 5 | 5 | Intrastate |
| Long Island Sound Productions INC | 2485821 | 5 | 5 | Intrastate |
| Certified Cesspool And Drain INC | 2940213 | 5 | 5 | Intrastate |
| Zenu Products CO | 3081734 | 5 | 5 | Interstate |
| North Shore Climate Control INC | 3108150 | 5 | 2 | Intrastate |
| Pinnacle Pump And Tank Corp | 3516109 | 5 | 5 | Intrastate |
| Green Island Transportation Group Corp | 3872290 | 5 | 4 | Intrastate |
| Dunrite Pools Retail | 4089210 | 5 | 6 | Intrastate |
| W H M Contracting CO INC | 620770 | 4 | 4 | Interstate |
| Roy Wanser INC | 1143740 | 4 | 4 | Intrastate |
| Apple Environmental | 1409593 | 4 | 2 | Interstate |
| Complete Quality Landscaping Ltd | 1567960 | 4 | 3 | Intrastate |
| Allstate Mechanical INC | 1571717 | 4 | 4 | Intrastate |
| Roadrunner Express Trucking Systems INC | 1609973 | 4 | 4 | Interstate |
| Impact Environmental | 1640873 | 4 | 2 | InterstateHazmat |
| Pool Care INC | 1707807 | 4 | 2 | Intrastate |
| Anthony's Roofing | 1906826 | 4 | 4 | Intrastate |
| G - Rock Handcovers INC | 1934189 | 4 | 4 | Interstate |
| Servpro Of Greater Smithtown | 2361239 | 4 | 4 | Intrastate |
| Rescue Cesspool & Drain | 2845554 | 4 | 2 | Intrastate |
| Meadowbrook Florist | 2970542 | 4 | 3 | Intrastate |
| Tri-State Paving LLC | 3103536 | 4 | 5 | Intrastate |
| G-Tech Restoration INC | 3111294 | 4 | 7 | Intrastate |
| Kaste Landscape & Design INC | 3346020 | 4 | 10 | Intrastate |
| Latinfoodfl INC | 4357233 | 4 | 4 | Intrastate |
| Global Imports Solutions INC | 4364973 | 4 | 3 | Interstate |
| Coast 2 Coast Trucks LLC | 4442533 | 4 | 2 | Intrastate |
| Fortunato Sons INC | 1135473 | 3 | 2 | Intrastate |
| Marshall Industries Ltd | 1199655 | 3 | 6 | Intrastate |
| All Island Media INC | 1397458 | 3 | 3 | Intrastate |
| Aj Lynn Dist INC | 1527143 | 3 | 3 | Intrastate |
| Sani Lav INC | 1553263 | 3 | 2 | Intrastate |
| J & A Concrete Pumping Corp | 1573191 | 3 | 3 | Intrastate |
| Bare Boards | 1585765 | 3 | 3 | Intrastate |
| Noah Construction & Builders | 1646703 | 3 | 3 | Intrastate |
| Gary Carter Home Improvement INC | 1650986 | 3 | 3 | Intrastate |
| Noble Elevator Company INC | 1678601 | 3 | 1 | Intrastate |
| Herman Brothers Landscape Contracting Corp | 1748498 | 3 | 3 | Intrastate |
| Belvedere Construction LLC | 1761902 | 3 | 1 | Intrastate |
| Brick It | 1775075 | 3 | 2 | Interstate |
| Gidch Construction INC | 1935832 | 3 | 3 | Intrastate |
| Knot Just Trees INC | 2276629 | 3 | 2 | Intrastate |
| Best Built Barns INC | 2363666 | 3 | 1 | Intrastate |
| Hy-Grade Contractors Corp | 2402016 | 3 | 3 | Intrastate |
| The Bbq King | 2420185 | 3 | 3 | Intrastate |
| Gerard Leone Concrete INC | 2461838 | 3 | 3 | Intrastate |
| Empire Tent Rental | 2490628 | 3 | 3 | Intrastate |