Data / Carriers / Hazardous materials carriers / Connecticut
Hazardous materials carriers carriers in Connecticut: 488 carriers with 5+ trucks
FMCSA lists 488 active carriers in Connecticut with 5 or more power units that report hazardous materials carriers, 96 of them with 20 or more, running 11,032 power units with 11,275 drivers. Their vehicles went out of service in 22.6% of 2,205 vehicle inspections from November 7, 2024 to November 7, 2026, against 22.9% for all carriers.
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- Carriers with 5+ power units
- 488
- With 20+ power units
- 96
- Power units
- 11,032
- Drivers
- 11,275
- Inspections
- 3,692
- Crashes involving these carriers, wherever they happened
- 278
- Vehicle out of service rate
- 22.6% (0.3 points below the national rate, national 22.9%)
Largest of these carriers in Connecticut
Ranked by power units. Counts cover November 7, 2024 to November 7, 2026.
| Carrier | City | Power units | Drivers | Inspections | Vehicle out of service | Crashes |
|---|---|---|---|---|---|---|
| Nstar Electric Company | Berlin | 787 | 1,214 | 0 | Not listed | 1 |
| The Connecticut Light & Power Co | Berlin | 735 | 1,047 | 3 | Not listed | 3 |
| M&M Transport Services LLC | Putnam | 585 | 563 | 539 | 27.4% | 44 |
| Public Service of New Hampshire | Berlin | 404 | 456 | 67 | 9.5% | 3 |
| O & G Industries Inc | Torrington | 294 | 202 | 25 | 13.3% | 5 |
| Eversource Energy Service Company | Berlin | 244 | 209 | 4 | Not listed | 1 |
| US Electrical Services Inc | Middletown | 207 | 212 | 262 | 8.5% | 3 |
| Tilcon Connecticut Inc | New Britain | 189 | 134 | 14 | Not listed | 6 |
| Supreme Industries Inc | Harwinton | 175 | 169 | 46 | 33.3% | 0 |
| Safety Marking LLC | Bridgeport | 154 | 121 | 11 | 33.3% | 1 |
| The Lane Construction Corporation | Cheshire | 143 | 200 | 23 | 35.3% | 6 |
| Yankee Gas Services | Berlin | 124 | 286 | 2 | Not listed | 1 |
| Mcvac Environmental Services Inc | New Haven | 122 | 121 | 43 | 11.1% | 5 |
| Raytheon Technologies Corporation | East Hartford | 121 | 517 | 1 | Not listed | 0 |
| Nec Group LLC | Bloomfield | 100 | 100 | 39 | 30% | 0 |
| Tradebe Treatment and Recycling Northeast LLC | Meriden | 98 | 54 | 53 | 31.2% | 0 |
| TRC Environmental Corporation | Windsor | 94 | 126 | 15 | 25% | 0 |
| Technical Gas Products Inc | Wallingford | 87 | 87 | 166 | 6.1% | 4 |
| Norbert E Mitchell Co Inc | Danbury | 83 | 77 | 15 | 0% | 6 |
| Sysco Connecticut LLC | Rocky Hill | 80 | 89 | 36 | 26.7% | 5 |
| Hocon Gas Inc | Shelton | 78 | 41 | 6 | Not listed | 1 |
| Manafort Brothers Inc | Plainville | 77 | 40 | 36 | 40% | 1 |
| Teed & Brown Inc | Norwalk | 75 | 40 | 1 | Not listed | 0 |
| Coastal Carriers of Connecticut LLC | Ansonia | 70 | 46 | 29 | 8.3% | 6 |
| A Royal Flush Inc | Southport | 66 | 46 | 17 | 50% | 0 |
| Pace Motor Lines Inc | Stratford | 65 | 73 | 53 | 27.5% | 7 |
| H I Stone & Son Inc | Southbury | 61 | 63 | 33 | 38.9% | 4 |
| Thurston Foods Inc | Wallingford | 58 | 54 | 58 | 17.9% | 2 |
| Forbes Transport Inc | East Haven | 57 | 20 | 38 | 13.9% | 1 |
| Charter Oak Utility Constructors Inc | Cromwell | 56 | 13 | 5 | Not listed | 0 |
| LH Gault & Son Inc | Westport | 53 | 30 | 16 | 33.3% | 2 |
| CPP Transport LLC | Marlborough | 53 | 17 | 1 | Not listed | 0 |
| Julianos Pools LLC | Vernon | 52 | 47 | 51 | 48.1% | 4 |
| Santa Fuel Incorporated | Bridgeport | 50 | 47 | 15 | 9.1% | 7 |
| Wilcox Fuel Inc | Westbrook | 50 | 40 | 0 | Not listed | 0 |
| Galasso Materials LLC | East Granby | 49 | 35 | 4 | Not listed | 0 |
| Connecticut Natural Gas Corporation | East Hartford | 48 | 76 | 2 | Not listed | 1 |
| East Side Auto Transport LLC | Wallingford | 48 | 48 | 37 | 38.5% | 8 |
| The Southern Connecticut Gas Company | Orange | 47 | 44 | 3 | Not listed | 0 |
| Cherry Hill Const Inc | North Branford | 47 | 40 | 44 | 36% | 7 |
| Hoffman Fuel Co of Danbury | Danbury | 47 | 20 | 3 | Not listed | 0 |
| Soundview Transportation LLC | Guilford | 45 | 48 | 39 | 19.4% | 5 |
| Electric Boat Corporation | Groton | 45 | 43 | 3 | Not listed | 0 |
| Pan Leasing LLC | Berlin | 45 | 40 | 0 | Not listed | 0 |
| Ef&g Construction Inc | Plainville | 45 | 30 | 9 | 0% | 0 |
| VMS Construction Company | Vernon | 44 | 33 | 7 | Not listed | 0 |
| Standard Oil of Connecticut Inc | Bridgeport | 43 | 31 | 4 | Not listed | 1 |
| These Guys' New York Deli Corp | Danbury | 41 | 65 | 0 | Not listed | 0 |
| Laydon Industries General Contractors LLC | New Haven | 41 | 17 | 12 | 16.7% | 1 |
| Torrison Stone & Garden LLC | Durham | 40 | 35 | 3 | Not listed | 0 |
| Andreucci Trucking Inc | North Haven | 39 | 85 | 55 | 25% | 4 |
| Quality Propane Inc | Clinton | 38 | 22 | 6 | 0% | 0 |
| New England Road Inc | Clinton | 38 | 4 | 1 | Not listed | 0 |
| Yale University | New Haven | 37 | 77 | 2 | Not listed | 5 |
| Hartford Provision Company Inc | South Windsor | 36 | 41 | 47 | 8.3% | 1 |
| Laydon Industries LLC | New Haven | 36 | 35 | 1 | Not listed | 0 |
| Simoniz USA Inc | Bolton | 34 | 34 | 75 | 12% | 0 |
| Devine Bros Inc | Norwalk | 34 | 33 | 11 | 50% | 2 |
| Buds Truck & Diesel Service Inc | Bridgeport | 34 | 12 | 37 | 47.4% | 0 |
| Max Transportation LLC | Avon | 33 | 19 | 66 | 18.2% | 2 |
| Ceci Brothers Inc | Greenwich | 32 | 70 | 3 | Not listed | 1 |
| Levco Tech Inc | Trumbull | 32 | 24 | 4 | Not listed | 1 |
| Energy Management Professionals LCC | Waterbury | 29 | 66 | 0 | Not listed | 2 |
| Thermo King Northeast LLC | New Britain | 29 | 60 | 14 | 0% | 0 |
| Leahy's Fuels Inc | Danbury | 29 | 18 | 1 | Not listed | 1 |
| Daniels Oil Co Inc | Portland | 28 | 14 | 1 | Not listed | 0 |
| DW Transport & Leasing Inc | N Franklin | 27 | 39 | 51 | 43.3% | 1 |
| The Bell Pump Service Co Inc | Glastonbury | 27 | 37 | 37 | 8% | 1 |
| J Vitali Transportation LLC | Meriden | 27 | 24 | 27 | 28.6% | 3 |
| Ecoservices LLC | Wethersfield | 26 | 29 | 2 | Not listed | 0 |
| Mal's Auto & Truck Repair Inc | Saybrook | 26 | 18 | 4 | Not listed | 0 |
| Mitchell's Auto Parts Inc | Southington | 25 | 25 | 39 | 26.1% | 3 |
| Tuxis Ohr's Fuel Incorporated | Meriden | 25 | 20 | 12 | 50% | 1 |
| Plunske's Garage LLC | Wallingford | 25 | 13 | 0 | Not listed | 0 |
| Chip's Wrecker Service Inc | Milford | 25 | 12 | 1 | Not listed | 0 |
| Earthlight Technologies LLC | Ellington | 24 | 53 | 3 | Not listed | 0 |
| Fusco Bros Inc | Windsor | 24 | 9 | 0 | Not listed | 0 |
| Santoro Inc | Newington | 24 | 3 | 2 | Not listed | 0 |
| The Berlin Steel Construction Company | Kensington | 23 | 35 | 3 | Not listed | 0 |
| Andersen Oil Company | Ledyard | 23 | 23 | 3 | Not listed | 0 |
| Az Corporation | No Stonington | 23 | 20 | 2 | Not listed | 0 |
| Altadis Shade Company LLC | Somers | 23 | 7 | 0 | Not listed | 0 |
| Spicer Plus Inc | Groton | 22 | 25 | 6 | 20% | 0 |
| Connecticut Cartage Company Inc | Wolcott | 22 | 17 | 11 | 20% | 1 |
| John Degrand & Son Inc | West Haven | 22 | 13 | 27 | 7.1% | 0 |
| Greenwich Propane Co Inc | Bethel | 22 | 10 | 6 | 0% | 1 |
| Viking Fuel LLC | Norwich | 22 | 7 | 5 | Not listed | 0 |
| D'amato Construction Company Inc | Bristol | 21 | 26 | 2 | Not listed | 1 |
| Ace Energy LLC | Broadbrook | 21 | 14 | 1 | Not listed | 0 |
| Plaza Service Center Inc | Wallingford | 21 | 11 | 1 | Not listed | 0 |
| Rvos Inc | Middletown | 21 | 5 | 0 | Not listed | 0 |
| Martin Laviero Contractor Inc | Bristol | 20 | 22 | 2 | Not listed | 0 |
| Rafferty Fine Grading Inc | Enfield | 20 | 22 | 0 | Not listed | 1 |
| The Aero All-Gas Co | Hartford | 20 | 16 | 14 | 9.1% | 0 |
| Laframboise Well Drilling Inc | Thompson | 20 | 5 | 3 | Not listed | 0 |
| Rsolutions LLC | Cromwell | 20 | 3 | 0 | Not listed | 0 |
| M & S Paving and Sealing Inc | South Windsor | 19 | 31 | 0 | Not listed | 0 |
| S Camerota & Sons Inc | Enfield | 19 | 31 | 33 | 7.7% | 0 |
| Carolyn's Transport LLC | Cromwell | 19 | 20 | 23 | 0% | 4 |
| Red Technologies LLC | Portland | 19 | 16 | 29 | 11.1% | 0 |
Cities
| City | Carriers |
|---|---|
| Danbury | 21 |
| Bridgeport | 10 |
| Stamford | 10 |
| Norwalk | 7 |
Updated November 7, 2026. Read from US Department of Transportation, FMCSA Motor Carrier Census, Inspection, Crash and Licensing files. Public domain (U.S. government work). Inspection and crash counts cover November 7, 2024 to November 7, 2026. Fleet size, drivers, cargo and operation are as each carrier reports them to FMCSA and can be out of date. A vehicle or driver out of service order means an inspector ordered the vehicle or driver off the road until the problem was fixed. The national rate comes from every inspection in the same window. Crashes are those state police reported to FMCSA and are not a finding of fault. This page uses US Department of Transportation data and is not endorsed or certified by the Department of Transportation or FMCSA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.