| Aquarion Water CO Of Connecticut | 409079 | 202 | 187 | Intrastate |
| Safety Marking LLC | 580484 | 154 | 121 | InterstateHazmat |
| Santa Fuel Incorporated | 462520 | 50 | 47 | InterstateHazmat |
| Standard Oil Of Connecticut INC | 351019 | 43 | 31 | IntrastateHazmat |
| Wades Dairy INC | 476125 | 35 | 34 | Interstate |
| Bud's Truck & Diesel Repairs | 447533 | 34 | 12 | InterstateHazmat |
| Ccc Delivery LLC | 3438792 | 31 | 25 | Interstate |
| Regional Express LLC | 3280393 | 30 | 45 | Interstate |
| Goodwill | 630547 | 27 | 10 | Intrastate |
| Big Little Sanitation | 619869 | 23 | 12 | Intrastate |
| Anthony Julian Railroad Construction Company INC | 682439 | 22 | 26 | Intrastate |
| A & A Crane And Rigging LLC | 1214982 | 22 | 10 | Interstate |
| People To Places INC | 1456941 | 21 | 21 | Intrastate |
| Enviro Express INC | 349686 | 19 | 15 | Interstate |
| Certified Auto Parts, INC | 7677058 | 19 | 21 | Interstate |
| Hi Ho Petroleum Ct Coke INC | 730467 | 18 | 15 | IntrastateHazmat |
| The Greenwich Tent Company | 2816883 | 18 | 10 | Interstate |
| Northeast Horticultural | 1672364 | 17 | 15 | Intrastate |
| Butterdrive LLC | 3441840 | 16 | 35 | Interstate |
| Diamond Landscapes & Athletic Fields INC | 852241 | 15 | 18 | Intrastate |
| The Chapin & Bangs Company INC | 42134 | 14 | 15 | Interstate |
| Northeast Building & Home LLC | 619959 | 14 | 8 | Interstate |
| Midtown Auto Body & Sales INC Of Bridgeport | 706359 | 13 | 13 | Interstate |
| H R Candee Construction CO INC | 622840 | 12 | 9 | Intrastate |
| Sultan | 2469670 | 12 | 12 | Interstate |
| Waters Construction CO INC | 705956 | 11 | 10 | Interstate |
| Bruce And Sons INC | 3019784 | 11 | 2 | Intrastate |
| Dltl Landscape Contractors | 641426 | 10 | 10 | Intrastate |
| Granados General Contracting & Landscaping INC | 871094 | 10 | 4 | Interstate |
| Mid-Town Auto Body INC | 4421453 | 10 | 22 | Intrastate |
| Nick's Carting INC | 705656 | 9 | 5 | Intrastate |
| Kerigan's Fuel INC | 873960 | 9 | 3 | IntrastateHazmat |
| Interstate Batteries Of Fairfield & Litchfield Counties | 1522135 | 9 | 9 | Intrastate |
| Connecticut Landscapes LLC | 2123459 | 9 | 5 | Intrastate |
| Feroleto Steel CO INC | 146129 | 8 | 8 | Interstate |
| Standard Petroleum Company | 494014 | 8 | 4 | IntrastateHazmat |
| Mojos Trucking LLC | 1457822 | 8 | 4 | Intrastate |
| Eleve 11 Express LLC | 3724853 | 8 | 8 | InterstateHazmat |
| The Homer C Godfrey CO | 244225 | 7 | 8 | Interstate |
| Mickey's Towing & Repair Station INC | 889928 | 7 | 7 | Interstate |
| Chaves Bakery II INC | 1026466 | 7 | 15 | Interstate |
| King Floor Supplies | 2572112 | 7 | 5 | Interstate |
| Rowamerica LLC | 3927203 | 7 | 4 | Interstate |
| Valley Container INC | 288675 | 6 | 5 | Interstate |
| M & L Construction INC | 672937 | 6 | 4 | Interstate |
| Ramos Fuel & Trucking LLC | 705649 | 6 | 4 | IntrastateHazmat |
| Vaz Quality Works LLC | 1171342 | 6 | 5 | Intrastate |
| Southern Connecticut Ice & Oil LLC | 1193502 | 6 | 3 | Interstate |
| Hope Kitchen Cabinets & Stone Supply LLC | 2868549 | 6 | 5 | Interstate |
| Mt Trucking LLC | 2942677 | 6 | 5 | Interstate |
| Mcnally Logistics INC | 3866991 | 6 | 2 | Intrastate |
| 3a & G Express Trucking LLC | 4232930 | 6 | 4 | Interstate |
| Smbwest Contracting & Development LLC | 4500296 | 6 | 8 | Interstate |
| Alds Drywall Services LLC | 5526797 | 6 | 20 | Interstate |
| Martin Transportation LLC | 6852425 | 6 | 1 | Interstate |
| Park Ave Auto Services Towing Brakes And Tires LLC | 8723204 | 6 | 3 | Intrastate |
| M J Metal INC | 387686 | 5 | 2 | Interstate |
| Mail Center Services INC | 472822 | 5 | 12 | Interstate |
| G Pic & Sons Construction Company | 632900 | 5 | 5 | Intrastate |
| West End Lumber CO | 640521 | 5 | 5 | Intrastate |
| P C Metals INC | 706962 | 5 | 4 | Interstate |
| Ericks Tree Removal And Garden Services LLC | 1628336 | 5 | 2 | Intrastate |
| Valentin Cari Insulation & The Fast LLC | 2197415 | 5 | 5 | Interstate |
| Connecticut Towing & Recovery | 2307256 | 5 | 2 | IntrastateHazmat |
| Open Road Logistic Incorporation | 2964195 | 5 | 4 | Interstate |
| G&v Services LLC | 3573433 | 5 | 4 | Intrastate |
| Mcnally Logistics INC | 3866888 | 5 | 1 | Intrastate |
| Worldwide International LLC | 4415268 | 5 | 5 | Interstate |
| Jewish Senior Services | 710085 | 4 | 2 | Interstate |
| Bridgeport Paving CO INC | 837093 | 4 | 2 | Intrastate |
| Joe's Fuel Company INC | 853163 | 4 | 4 | IntrastateHazmat |
| O'hara's LLC | 875588 | 4 | 2 | Intrastate |
| T Dev Construction Services INC | 1878305 | 4 | 4 | Intrastate |
| Cityline Sales & Ser Auto Collision | 1994302 | 4 | 2 | IntrastateHazmat |
| Success Village Apartments | 2424090 | 4 | 4 | Intrastate |
| Sarene Craft Beer Distributors Connecticut | 2790896 | 4 | 4 | Interstate |
| Pro-Sealer's | 2878704 | 4 | 4 | Intrastate |
| Cruz's Landscaping LLC | 3044543 | 4 | 2 | Interstate |
| Connecticut Demolition LLC | 3055860 | 4 | 2 | Intrastate |
| J & Sons Transport Services INC | 3739087 | 4 | 4 | InterstateHazmat |
| Acg Logistics Corp | 4332211 | 4 | 4 | Interstate |
| H & H Shellfish LLC | 6319967 | 4 | 1 | Interstate |
| Point A To B Inc. | 7955598 | 4 | 6 | Interstate |
| New England Wholesale Division | 291312 | 3 | 3 | Intrastate |
| Massey Fuel INC | 354418 | 3 | 2 | IntrastateHazmat |
| Globe Equipment CO INC | 446856 | 3 | 3 | Interstate |
| Astro Moving INC | 570181 | 3 | 4 | Interstate |
| Deyulio's Sausage Company | 590906 | 3 | 3 | Interstate |
| Abc Sign Corp | 615855 | 3 | 2 | InterstateHazmat |
| Liberty Auto & Electric CO | 661784 | 3 | 3 | Intrastate |
| J R Mont's Service | 836805 | 3 | 2 | Intrastate |
| T Arduini Company INC | 891841 | 3 | 2 | Intrastate |
| Akdo Intertrade | 967809 | 3 | 2 | Interstate |
| Clearview INC | 1018708 | 3 | 2 | Interstate |
| Madison Supply CO LLC | 1081726 | 3 | 3 | Interstate |
| Lanese Construction | 1127189 | 3 | 3 | Intrastate |
| B&e Juice INC | 1195840 | 3 | 2 | Intrastate |
| Rjz Enterprises | 1275793 | 3 | 3 | Interstate |
| Madison Automotive Sales & Service INC | 1673740 | 3 | 2 | IntrastateHazmat |
| The Installation Company | 1828141 | 3 | 2 | Intrastate |