Workplace injury records in Groton, CT
215 establishments in Groton filed an OSHA Form 300A summary at least once between 2016 and 2025. The largest industries here: Health Care and Social Assistance (40), Retail Trade (25), Manufacturing (22). 106 had 30 to 200 employees at their latest filing.
| Establishment | Industry | Avg. employees (last filing) | Years filed | TRIR (last filing) | Industry median TRIR |
|---|---|---|---|---|---|
| #29 Groton TLC East LLC DBA: Applebee's Neighborhood Grill & Bar | Full service restaurants | 36 | 2020 · 1 | 10.23 | 0.00 |
| 04816 STORE 04816 Dollar Tree Stores Inc. STORE 04816 | All Other General Merchandise Retailers | 42 | 2024 · 1 | 14.18 | 0.00 |
| 083110-GROTON PO USPS | Mail and Parcel Delivery | 54 | 2017–2020 · 4 | 12.21 | 7.73 |
| 083110-GROTON PO US Postal Service | Mail and Parcel Delivery | 54 | 2021–2022 · 2 | 20.54 | 9.22 |
| 083414-GRO-GROTON BOROUGH STA US Postal Service | Mail and Parcel Delivery | 1 | 2022 · 1 | 224.72 | 9.22 |
| 100682 Stop & Shop | — | 177 | 2021 · 1 | 11.48 | 4.50 |
| 110027800 ELECTRIC BOAT GROTON Aramark ELECTRIC BOAT GROTON | Food Service Contractors | 28 | 2023–2025 · 2 | 13.37 | 0.00 |
| 110027800 ELECTRIC BOAT GROTON FORMERLY GENERAL D Aramark | Food Services | 30 | 2024 · 1 | — | 0.00 |
| 163010-Groton | CT | CTG-500 Student Transportation of America | 485410 | 72 | 2022–2024 · 2 | 2.03 | 2.85 |
| 163010-Groton | CT | CTG-500 Student Transportation of America | 485410 | 72 | 2023–2025 · 2 | 2.09 | 2.16 |
| 1GRC1 SPAWAR Groton CT Amentum Services Inc | Engineering Services | 10 | 2022 · 1 | 0.00 | 0.00 |
| 1GRC9 Pfizer Power Groton CT Amentum Services Inc | Commercial and industrial machinery and equipment (except automotive and electronic) repair and maintenance | 37 | 2022 · 1 | 0.00 | 1.09 |
| 1GRC9 - Pfizer - Power - Groton, CT Amentum Services, Inc | Commercial and industrial machinery and equipment (except automotive and electronic) repair and maintenance | 27 | 2021 · 1 | 0.00 | 1.15 |
| 2096-AI2035-GROTON-CT | Automotive parts and accessories stores | 34 | 2018 · 1 | 10.95 | 4.88 |
| 2200 Wal-Mart Stores East, LP | All Other General Merchandise Stores | 187 | 2021 · 1 | 8.07 | 5.19 |
| 318 Groton CT OSJ | Variety stores | 46 | 2016–2017 · 2 | 11.43 | 3.77 |
| 401 Goldstar Hwy Comcast | — | 51 | 2017–2019 · 3 | 12.19 | 1.42 |
| 460 GROTON VT SERVICES, INC | Ship repair done in a shipyard | 20 | 2020 · 1 | 9.06 | 3.70 |
| 470 Groton Kohls Department Stores | Department Stores | 67 | 2016–2023 · 6 | 0.00 | 2.45 |
| 470 Groton Kohls Inc | Department Store | 60 | 2022–2024 · 2 | 5.86 | 2.78 |
| 470 GROTON Kohls Inc. | — | 61 | 2025 · 1 | 0.00 | 2.56 |
| 5839- WINDHAM FALLS ESTATES Holiday Retirement Corp | NULL | 44 | 2016 · 1 | 3.06 | 6.19 |
| 6140-61400318 | All Other General Merchandise Stores | 26 | 2018–2020 · 2 | 12.66 | 3.72 |
| 61400318 CT318 GROTON Ocean State Job Lot CT318 GROTON | All Other General Merchandise Stores | 21 | 2019–2023 · 3 | 33.14 | 0.00 |
| 61400318 CT318 GROTON Ocean State Job Lot | All Other General Merchandise Stores | 18 | 2021–2024 · 3 | 19.78 | 0.00 |
| 68501173--PFIZER ABM | — | 37 | 2017 · 1 | 0.00 | 1.03 |
| 90007870 General Dynamics Skanska USA Civil Inc. | Marine construction | 131 | 2019–2020 · 2 | 10.95 | 0.00 |
| 90007870 General Dynamics Skanska USA Civil Inc. | Marine construction | 25 | 2021 · 1 | 0.00 | 0.00 |
| Admin Office Noank Community Support Services | Mental health facilities, residential | 28 | 2023 · 1 | 0.00 | 0.00 |
| AFM East - Groton, CT | Aircraft maintenance and repair services (except factory conversion, factory overhaul, factory rebuilding) | 39 | 2025 · 1 | 0.00 | 2.37 |
| Big Y Foods, Inc. Groton Big Y Foods, Inc. | Supermarkets | 120 | 2016–2020 · 5 | 3.45 | 4.24 |
| Big Y Foods, Inc. Groton Big Y Foods, Inc. | Supermarkets | 114 | 2021–2022 · 2 | 9.52 | 4.52 |
| Branford Manor | Lessor of Res Bldgs | 1 | 2019 · 1 | — | 0.00 |
| Breezeline - Groton COGECO US FINANCE, LLC (d/b/a BREEZELINE) | Internet service providers, using own operated wired telecommunications infrastructure (e.g., cable, DSL) | 13 | 2023–2025 · 2 | 7.40 | 0.36 |
| Breezeline - Groton COGECO US FINANCE, LLC (d/b/a BREEZELINE) | Internet service providers, using own operated wired telecommunications infrastructure (e.g., cable, DSL) | 14 | 2024 · 1 | 6.87 | 0.00 |
| Catherine Kolnaski School Groton Public Schools | School districts, elementary or secondary | 88 | 2018–2023 · 4 | 6.09 | 2.90 |
| Catherine Kolnaski School Groton Public Schools | School districts, elementary or secondary | 81 | 2021–2024 · 3 | 8.29 | 2.74 |
| Catherine Kolnaski Steam Magnet School Groton Public Schools | Elementary and secondary schools | 102 | 2025 · 1 | 12.32 | 2.72 |
| Chalet Navy-Groton Chalet Navy - Groton | Hotels (except casino hotels) | 28 | 2017–2023 · 5 | 6.06 | 2.40 |
| Chalet Navy-Groton Chalet Navy - Groton | Hotels (except casino hotels) | 25 | 2021–2022 · 2 | 12.46 | 2.88 |
| Charles Barnum Magnet School Groton Public Schools | Elementary and secondary schools | 92 | 2018–2025 · 5 | 13.59 | 2.72 |
| Charles Barnum School Groton Public Schools | School districts, elementary or secondary | 67 | 2021–2024 · 3 | 9.23 | 2.74 |
| City of Groton | General services departments, government | 305 | 2016–2018 · 3 | 2.84 | 1.85 |
| Claude Chester School Groton Public Schools | School districts, elementary or secondary | 72 | 2018–2020 · 3 | 1.73 | 1.39 |
| Claude Chester School Groton Public Schools | School districts, elementary or secondary | 47 | 2021 · 1 | 7.82 | 2.31 |
| Complete Care at Groton Regency | Nursing homes | 120 | 2021 · 1 | 55.27 | 7.06 |
| Complete Care Groton Regency | Skilled nursing facilities | 157 | 2025 · 1 | — | 4.17 |
| CT - Groton, 401 Goldstar Hwy Comcast Cable Communications Management, LLC | Cable and Other Subscription Programming | 38 | 2022 · 1 | 5.65 | 2.80 |
| CT - Groton, 401 Goldstar Hwy Comcast Cable Communications Management, LLC | Cable and Other Subscription Programming | 43 | 2023 · 1 | 4.92 | 0.38 |
| CT-Groton International Marine and Industrial Applicators, LLC | Ship repair done in a shipyard | 8 | 2017–2019 · 3 | 0.00 | 4.05 |
| CT-Groton International Marine and Industrial Applica | Ship repair done in a shipyard | 2 | 2021 · 1 | 0.00 | 4.23 |
| CTANG1-YUCN Yulista Contract Services LLC | — | 59 | 2023–2025 · 2 | 7.57 | 0.85 |
| CTANG1-YUCN Yulista Contract Services LLC | — | 62 | 2024 · 1 | 5.56 | 0.84 |
| CTG01 Comcast Cable Communications Management, LLC | Cable and Other Subscription Programming | 47 | 2024 · 1 | 9.23 | 0.00 |
| CTG05 Comcast Cable Communications Management, LLC | Cable and Other Subscription Programming | 11 | 2024 · 1 | 0.00 | 0.00 |
| CWITT - Groton, CT Amentum Services Inc | Base facilities operation support services | 84 | 2020–2025 · 3 | 0.00 | 0.00 |
| DEALERTRACK GROTON Cox Enterprises, Inc. | Computer Systems Design Services | 151 | 2020 · 1 | 0.00 | 0.00 |
| Doncasters Precision Castings | Investment castings, steel, unfinished, manufacturing | 227 | 2023 · 1 | 5.51 | 5.00 |
| Doncasters Precision Castings - New England Doncasters Group | Steel investment foundries | 275 | 2018 · 1 | 6.31 | 6.30 |
| Doncasters Structural Castings of Groton | Investment castings, steel, unfinished, manufacturing | 205 | 2025 · 1 | 5.17 | 4.04 |
| Electric Boat General Dynamics | Submarine building | 13,609 | 2021–2022 · 2 | 4.88 | 4.04 |
| Electric Boat Groton Ct General Dynamics | Submarine building | 16,009 | 2023–2025 · 2 | 2.87 | 2.72 |
| Electric Boat, Groton, CT. General Dynamics | Submarine building | 15,849 | 2022–2024 · 2 | 2.76 | 2.80 |
| ET Grasso SE THS State of Connecticut | Art schools, commercial or graphic | 100 | 2020 · 1 | 2.75 | 0.00 |
| ETC The Arc New London County--Employment Transition Center | Rehabilitation job counseling and training, vocational | 40 | 2016 · 1 | 16.67 | 3.31 |
| ETC-Employment Transition Center The Arc Eastern CT | Vocational rehabilitation or habilitation services (e.g., job counseling, job training, work experience) | 49 | 2024 · 1 | 0.00 | 0.00 |
| Fairview Odd Fellows Home | Homes for the elderly with nursing care | 195 | 2021 · 1 | 13.50 | 7.06 |
| Fairview Odd Fellows Home of CT | Convalescent homes or convalescent hospitals (except psychiatric) | 232 | 2016–2020 · 3 | 15.03 | 10.04 |
| Fitch High School Groton Public Schools | Elementary and secondary schools | 199 | 2018–2025 · 5 | 4.64 | 2.72 |
| Fitch High School Groton Public Schools | School districts, elementary or secondary | 164 | 2021–2024 · 3 | 4.35 | 2.74 |
| Fleet Roads and Streets Town of Groton | Construction management, highway, road, street and bridge | 27 | 2021–2022 · 2 | 14.70 | 2.02 |
| Garbo Lobster - CT American Holdco | Fresh seafood merchant wholesalers | 40 | 2016–2017 · 2 | 0.00 | 4.52 |
| GE1610 Groton High Line Lube | Automotive | 14 | 2022 · 1 | 0.00 | 0.00 |
| General Dynamics / Electric Boat HC 743-20 H. Carr & Sons | Drywall contractors | 35 | 2022 · 1 | 13.57 | 2.03 |
| General Dynamics Electric Boat Electric Boat Groton | Naval ship building | 12,015 | 2016–2020 · 5 | 3.13 | 3.70 |
| Granite City Electric Supply Co Groton Location Granite City Electric Supply Co | Fixtures, electric lighting, merchant wholesalers | 4 | 2016–2017 · 2 | 51.09 | 0.00 |
| GROTON Crystal Rock LLC | Water, bottled (except water treating), merchant wholesalers | 9 | 2016 · 1 | 0.00 | 2.79 |
| Groton Tilcon CT | Pavement, highway, road, street, bridge or airport runway, construction | 5 | 2016 · 1 | 32.28 | 2.97 |
| GROTON Goodwill Southern New England | Used merchandise stores | 76 | 2017–2025 · 6 | 16.07 | 3.17 |
| Groton Progeny Systems Corporation | Engineering research and development laboratories or services | 49 | 2017–2023 · 5 | 4.28 | 0.00 |
| GROTON Goodwill Southern New England | Used merchandise stores | 55 | 2021–2024 · 3 | 15.76 | 3.51 |
| Groton THE CONNECTION INC | 813211 Grantmaking Foundations | 2 | 2023–2025 · 2 | 0.00 | 0.00 |
| Groton Ambulance Association | Ambulance services, air or ground | 20 | 2017–2025 · 5 | 0.00 | 0.50 |
| Groton Ambulance Association | Ambulance services, air or ground | 20 | 2021–2024 · 2 | 5.15 | 1.55 |
| Groton CT Progeny Systems Corporation | Engineering research and development laboratories or services | 51 | 2021 · 1 | 1.96 | 0.00 |
| Groton CT Dispensary Curaleaf Inc | Cannabis Company | 38 | 2024 · 1 | 0.00 | 0.00 |
| Groton Hess Aldin Associates LP | Convenience food with gasoline stations | 6 | 2016 · 1 | 21.45 | 0.00 |
| Groton HVAC Maintenance BryMak & Associates, Inc. | Government Contractor | 16 | 2022–2025 · 3 | 0.00 | 1.10 |
| Groton Maintenance CTDOT | Repair, highway, road, street, bridge or airport runway | 20 | 2017 · 1 | 9.94 | 2.84 |
| Groton Middle School Groton Public Schools | Elementary and secondary schools | 175 | 2020–2025 · 3 | 0.68 | 2.72 |
| Groton Middle School Groton Public Schools | Elementary and secondary schools | 151 | 2021–2024 · 3 | 3.05 | 2.74 |
| Groton Parks & Recreation Town of Groton | Recreational camps without accommodations | 50 | 2016–2025 · 7 | 13.26 | 0.00 |
| Groton Parks & Recreation Town of Groton | Recreational camps without accommodations | 51 | 2021–2024 · 3 | 5.58 | 0.00 |
| Groton Parks Maintenance Town of Groton | Landscape care and maintenance services | 16 | 2016–2025 · 7 | 0.00 | 0.00 |
| Groton Parks Maintenance Town of Groton | Landscape care and maintenance services | 8 | 2021–2022 · 2 | 31.89 | 0.00 |
| Groton Parks Maintenance Town of Groton | Landscape care and maintenance services | 7 | 2024 · 1 | 0.00 | 0.00 |
| Groton Public Library Town of Groton | Libraries (except motion picture stock footage, motion picture commercial distribution) | 37 | 2016–2025 · 7 | 0.00 | — |
| Groton Public Library Town of Groton | Libraries (except motion picture stock footage, motion picture commercial distribution) | 37 | 2021–2024 · 3 | 10.58 | 0.00 |
| Groton Regency Complete Care | Clinics/centers of health practitioners from more than one industry practicing within the same establishment | 175 | 2016–2023 · 6 | — | 0.07 |
| Groton Regency Complete Care | Clinics/centers of health practitioners from more than one industry practicing within the same establishment | 170 | 2024 · 1 | — | 0.00 |
| Groton Senior Center Town of Groton | Centers, senior citizens' | 20 | 2021–2022 · 2 | 12.38 | 0.00 |
| Groton Social Services Town of Groton | Individual and family social services, multi-purpose | 6 | 2016–2025 · 7 | 0.00 | 0.01 |
| Groton Social Services Town of Groton | Individual and family social services, multi-purpose | 6 | 2021–2024 · 3 | 0.00 | 0.00 |
| Groton Towers Ansonia Acquisitions 1, LLC | Apartment managers' offices | 3 | 2018–2020 · 3 | 0.00 | 0.00 |
| Groton Town Hall Town of Groton | City and town managers' offices | 38 | 2016–2025 · 7 | 0.00 | 0.39 |
| Groton Town Hall Town of Groton | City and town managers' offices | 37 | 2021–2024 · 3 | 0.00 | 1.19 |
| Groton Town Hall Annex Public Works Town of Groton | General services departments, government | 28 | 2016–2025 · 7 | 3.64 | 0.39 |
| Groton Town Hall Annex Public Works Town of Groton | General services departments, government | 27 | 2021–2024 · 3 | 4.62 | 1.19 |
| Groton Town Police Town of Groton | Police departments (except American Indian or Alaska Native) | 93 | 2016–2025 · 7 | 5.38 | 3.68 |
| Groton Town Police Town of Groton | Police departments (except American Indian or Alaska Native) | 96 | 2021–2024 · 3 | 8.35 | 3.92 |
| Groton Transfer Station Town of Groton | Hazardous waste disposal facilities combined with collection and/or local hauling of hazardous waste | 2 | 2024 · 1 | 0.00 | 0.59 |
| Groton Transfer Station Town of Groton | Hazardous waste disposal facilities combined with collection and/or local hauling of hazardous waste | 3 | 2025 · 1 | 0.00 | 1.18 |
| Groton Voter Registration/Community Center Town of Groton | General services departments, government | 3 | 2022–2024 · 2 | 0.00 | 1.19 |
| Groton Voter Registration/Community Center Town of Groton | General services departments, government | 5 | 2023–2025 · 2 | 0.00 | 0.39 |
| Groton WPCF Town of Groton | Water control and quality program administration | 17 | 2021–2022 · 2 | 0.00 | 0.00 |
| Groton, CT | Aircraft maintenance and repair services (except factory conversion, factory overhaul, factory rebuilding) | 79 | 2016–2017 · 2 | 2.77 | 2.66 |
| Groton-New London Airport Connecticut Airport Authority | Aircraft hangar rental | 4 | 2016–2025 · 6 | 88.24 | 2.37 |
| Groton-New London Airport Connecticut Airport Authority | Aircraft hangar rental | 4 | 2021–2024 · 2 | 0.00 | 2.60 |
| GROTON_1365768 | Mail and Parcel Delivery | 51 | 2023–2025 · 2 | 7.05 | 6.06 |
| GROTON_1365768 US Postal Service | Mail and Parcel Delivery | 50 | 2024 · 1 | 0.00 | 6.83 |
| HART Engineering Corporation - Groton WWTF HART Engineering Corporation | Sewage treatment plant construction | 2 | 2016–2017 · 2 | — | 1.32 |
| IMIA, LLC Groton IMIA, LLC | Ship Repair | 22 | 2022–2024 · 2 | 0.00 | 2.80 |
| IMIA, LLC Groton IMIA, LLC | Ship Repair | 31 | 2023–2025 · 2 | 2.63 | 2.72 |
| L&M Sleep Center Lawrence & Memorial Hospital | Sleep disorder centers and clinics, outpatient | 12 | 2020 · 1 | 17.51 | 0.00 |
| L&M Sleep Center Lawrence & Memorial Hospital | Sleep disorder centers and clinics, outpatient | 9 | 2021–2022 · 2 | 0.00 | 1.52 |
| Marine Science Magnet High School LEARN | Academies, elementary or secondary | 50 | 2017–2025 · 6 | 0.00 | 2.72 |
| Marine Science Magnet High School LEARN | Academies, elementary or secondary | 54 | 2021–2024 · 3 | 0.00 | 2.74 |
| MARMC US CT Groton CT CT992 Amentum Services Inc | — | 28 | 2020–2023 · 2 | 0.00 | 0.00 |
| MARMC US CT Groton CT CT992 Amentum Services Inc | — | 30 | 2021–2024 · 3 | 3.32 | 0.00 |
| Mary Morrison Building Groton Public Schools | Elementary and secondary schools | 7 | 2018–2025 · 4 | 0.00 | 2.72 |
| Mary Morrisson School Groton Public Schools | School districts, elementary or secondary | 39 | 2021 · 1 | 3.12 | 2.31 |
| Modern Aviation - GON Modern Aviation | Fixed base operators | 16 | 2025 · 1 | 0.00 | 2.37 |
| MS - Groton, CT - 1GRC7 (FOM FM OCCUP) AECOM | Base facilities operation support services | 111 | 2017–2018 · 2 | 0.90 | 0.31 |
| Naval Health Clinic Groton Teya Support Services LLC | Government base facilities operation support services | 13 | 2025 · 1 | 10.21 | 0.00 |
| NBHC Groton DILLIGAS CORP | 561320 Temporary Help Services | — | 2020–2025 · 3 | — | 0.00 |
| NBHC Groton DILLIGAS CORP | 561320 Temporary Help Services | 3 | 2021 · 1 | 0.00 | 0.00 |
| NEmSI - General Dynamics - EB - Groton New England Mechanical Services, Inc. | Plumbing, Heating and Air-Conditioning | 10 | 2022–2024 · 2 | 0.00 | 1.23 |
| NEmSI - General Dynamics - EB - Groton New England Mechanical Services, Inc. | Plumbing, Heating and Air-Conditioning | 9 | 2023–2025 · 2 | 0.00 | 1.10 |
| NETC US CT Groton CT CT995 Amentum Services Inc | — | 63 | 2021–2024 · 3 | 0.00 | 0.00 |
| Odd Fellows Home of CT D/B/A Fairview Odd Fellows home of CT - D.B.A. Fairview | Convalescent homes or convalescent hospitals (except psychiatric) | 177 | 2023 · 1 | 11.89 | 5.00 |
| PCC Structurals | Foundries, steel investment | 168 | 2016–2020 · 3 | 2.95 | 4.97 |
| PCC Structurals Precision Casting Corp - Structurals Corp. | Foundries, iron (i.e., ductile, gray, malleable, semisteel) | 245 | 2017 · 1 | 6.20 | 6.29 |
| PCC Structurals Groton PCC Structurals | Foundries, die-casting, nonferrous metals | 168 | 2021 · 1 | 2.84 | 5.53 |
| PCC Structurals Groton Wyman Gordon Investment Castings, Inc. dba PCC Structurals, Inc. | Foundries (except die-casting), nonferrous metals (except aluminum) | 159 | 2022 · 1 | 3.20 | 5.72 |
| PCC Structurals Groton Wyman Gordon Investment Castings, Inc. dba PCC Structurals, Inc. | Foundries (except die-casting), nonferrous metals (except aluminum) | 171 | 2023 · 1 | 6.62 | 5.00 |
| Pequot Health Center: Lawrence & Memorial Hospital Lawrence & Memorial Hospital | General medical and surgical hospitals | 158 | 2019–2020 · 2 | 10.95 | 5.74 |
| Pequot Health Center: Lawrence & Memorial Hospital Lawrence & Memorial Hospital | General medical and surgical hospitals | 122 | 2021–2022 · 2 | 7.99 | 4.60 |
| Pfizer US CT Groton CT CT993 Amentum Services Inc | — | 48 | 2020–2025 · 3 | 2.08 | 0.42 |
| Pfizer US CT Groton CT CT993 Amentum Services Inc | — | 45 | 2021–2024 · 3 | 2.22 | 0.00 |
| Pfizer US CT Groton CT CT994 Amentum Services Inc | — | 34 | 2024 · 1 | 2.91 | 0.00 |
| Pfizer - Groton, CT (Pfizer CT Power) Amentum Services Inc | Industrial equipment and machinery repair and maintenance services | 27 | 2023–2025 · 2 | 0.00 | 0.42 |
| Pfizer Groton MML Eurest Services Sector | — | 28 | 2018–2023 · 4 | 3.76 | 0.00 |
| Pfizer Groton MML Compass Group | — | 27 | 2021–2024 · 2 | 7.90 | 0.00 |
| Pfizer Inc | Biotechnology research and development laboratories or services | 2,975 | 2016–2020 · 5 | 0.57 | 0.00 |
| Pfizer-Groton 200 Eurest Sector | — | 19 | 2018–2023 · 4 | 6.04 | 0.00 |
| Pfizer-Groton 200 Compass Group NA | — | 21 | 2021–2024 · 2 | 0.00 | 0.00 |
| PFIZER-GROTON CT Cianbro | — | 9 | 2018–2019 · 2 | 0.00 | 0.00 |
| PMGCoOp Store 7424 Petroleum Marketing Group | Petroleum, gas stations bulk | 7 | 2023 · 1 | 29.79 | 0.00 |
| PMGCoOp Store 7436 Petroleum Marketing Group | Petroleum, gas stations bulk | 9 | 2023 · 1 | 0.00 | 0.00 |
| PMGCoOp Store 7439 Petroleum Marketing Group | Petroleum, gas stations bulk | 7 | 2023 · 1 | 0.00 | 0.00 |
| PMGCoOp Store 7443 Petroleum Marketing Group | Petroleum, gas stations bulk | 8 | 2023 · 1 | 0.00 | 0.00 |
| PMGCoOp Store 7454 Petroleum Marketing Group | Petroleum, gas stations bulk | 15 | 2023 · 1 | 0.00 | 0.00 |
| Precision Castings of Groton Doncasters Inc. | Investment castings, steel, unfinished, manufacturing | 213 | 2022–2024 · 2 | 3.40 | 4.68 |
| RA Management LLC Branford Manor RA Management LLC | — | 15 | 2025 · 1 | 6.41 | 0.00 |
| Related Management Company LP Branford Manor Related Management Company LP | — | 10 | 2022 · 1 | 9.91 | 0.00 |
| Related Management Company LP Branford Manor Related Management Company LP | — | 15 | 2024 · 1 | 0.00 | 0.00 |
| Salem SPICER PLUS INC | Liquefied petroleum gas (LPG) dealers, direct selling | 13 | 2016–2018 · 2 | 8.10 | 4.31 |
| Seabird Enterprises | Work experience centers (i.e., sheltered workshops) | 164 | 2017–2025 · 3 | 14.29 | 0.00 |
| Seabird Enterprises | Work experience centers (i.e., sheltered workshops) | 200 | 2024 · 1 | 15.71 | 0.00 |
| Shennecossett Golf Course Town of Groton | Golf and country clubs | 17 | 2016–2025 · 7 | 0.00 | 0.00 |
| Shennecossett Golf Course Town of Groton | Golf and country clubs | 16 | 2021–2024 · 3 | 0.00 | 0.00 |
| Ship Provisioning CW Resources | Job counseling, vocational rehabilitation or habilitation | 10 | 2017–2019 · 2 | 43.78 | 3.54 |
| Ship Provisioning CW Group | — | 3 | 2023–2025 · 2 | 32.96 | 0.00 |
| ShipProvisioning CWResources | — | 11 | 2021 · 1 | 0.00 | 2.17 |
| SODEXO AT DECA NEW LONDON GROTON Sodexo Inc. | Food Service Contractors | 13 | 2023–2025 · 2 | 0.00 | 0.00 |
| SODEXO AT DECA NEW LONDON GROTON Sodexo Inc | Food Service Contractors | 15 | 2024 · 1 | 0.00 | 0.00 |
| Solstice at Groton | Senior citizens' homes without nursing care | 33 | 2018–2025 · 4 | 22.87 | 4.90 |
| SPAWAR US CT Groton CT CT988 Amentum Services Inc | — | 10 | 2023 · 1 | 0.00 | 0.00 |
| SPICER PLUS INC | Liquefied petroleum gas (LPG) dealers, direct selling | 46 | 2016–2025 · 6 | 2.04 | 1.29 |
| SPICER PLUS INC | Liquefied petroleum gas (LPG) dealers, direct selling | 36 | 2019 · 1 | 13.77 | 3.00 |
| SPICER PLUS INC | Liquefied petroleum gas (LPG) dealers, direct selling | 49 | 2021–2024 · 3 | 2.04 | 3.46 |
| STONINGTON INSTITUTE BH-279B UNIVERSAL HEALTH SERVICES | Res Mental Health Substance Abuse Facilit | — | 2025 · 1 | — | 0.00 |
| STSC - Groton, CT | Engineering services | 37 | 2025 · 1 | 0.00 | 0.00 |
| Student Transportation of America | School bus services | 88 | 2021 · 1 | 7.99 | 3.02 |
| Sub Base CW Group | — | 28 | 2023–2025 · 2 | 20.34 | 0.00 |
| Sub Base Galley CW Resources | Job counseling, vocational rehabilitation or habilitation | 59 | 2017–2020 · 4 | 4.55 | 0.99 |
| Sub Base Galley CW Group | — | 22 | 2023–2025 · 2 | 0.00 | 0.00 |
| Sub Base Grounds CW Group | — | 30 | 2023–2025 · 2 | 9.64 | 0.00 |
| Sub Base Janitorial CW Resources | Job counseling, vocational rehabilitation or habilitation | 60 | 2017–2020 · 3 | 11.25 | 0.99 |
| Sub Base Landscaping CW Resources | Job counseling, vocational rehabilitation or habilitation | 22 | 2017–2020 · 4 | 0.00 | 0.99 |
| Sub Base Landscaping CW Resources | Job counseling, vocational rehabilitation or habilitation | 24 | 2019 · 1 | 9.16 | 3.54 |
| SubBaseGalley CWResources | — | 57 | 2021 · 1 | 0.00 | 2.17 |
| SubBaseJanitorial CWResources | — | 70 | 2021 · 1 | 15.41 | 2.17 |
| SubBaseLandscaping CWResources | — | 13 | 2021 · 1 | 20.28 | 2.17 |
| SUPER STOP & SHOP 0682 STOP & SHOP | Grocery Stores | 153 | 2016–2025 · 7 | 3.08 | 3.16 |
| SUPER Stop And Shop 0682 Stop And Shop | Grocery Stores | 158 | 2022–2024 · 2 | 9.08 | 3.36 |
| SWN 52 ALDI INC. (CONNECTICUT) | — | 17 | 2017–2020 · 2 | 22.50 | 4.24 |
| Thames River Magnet School Groton Public Schools | Elementary and secondary schools | 124 | 2018–2025 · 5 | 7.97 | 2.72 |
| Thames River School Groton Public Schools | Academies, elementary or secondary | 92 | 2021–2024 · 3 | 2.80 | 2.74 |
| ThayerMahan Headquaters ThayerMahan Inc | Marine engineering services | 157 | 2024 · 1 | 0.00 | 0.00 |
| ThayerMahan, Inc | Search and detection systems and instruments manufacturing | 249 | 2020–2025 · 2 | 1.39 | 0.00 |
| ThayerMahan, Inc. | Acoustical engineering consulting services | 52 | 2021–2022 · 2 | 1.20 | 0.00 |
| Thrive 55+ Senior Center Town of Groton | Senior citizens centers | 17 | 2016–2025 · 7 | 22.00 | 0.01 |
| Thrive 55+ Senior Center Town of Groton | Senior citizens centers | 17 | 2024 · 1 | 11.31 | 0.00 |
| TOG Fleet Roads & Streets Town of Groton | Pothole filling, highway, road, street or bridge | 26 | 2016–2025 · 7 | 0.00 | 1.05 |
| TOG Fleet Roads & Streets Town of Groton | Pothole filling, highway, road, street or bridge | 26 | 2024 · 1 | 11.75 | 1.26 |
| Town of Groton WPCF Town of Groton | Pollution control program administration | 17 | 2016–2025 · 7 | 30.52 | 0.00 |
| Town of Groton WPCF Town of Groton | Pollution control program administration | 15 | 2024 · 1 | 7.03 | 0.06 |
| UConn - Avery Point Campus University of Connecticut | Academies, college or university | 294 | 2021 · 1 | 0.00 | 0.95 |
| University of Connecticut, Marine Sciences University of Connecticut | Academies, college or university | 103 | 2016–2017 · 2 | 0.00 | 1.32 |
| University of Connecticut- Avery Point Campus University of Connecticut | Academies, college or university | 312 | 2016–2025 · 7 | 1.26 | 1.01 |
| University of Connecticut- Avery Point Campus University of Connecticut | Academies, college or university | 326 | 2022–2024 · 2 | 1.29 | 1.25 |
| Western New England Region-401 Goldstar Hwy | — | 43 | 2020 · 1 | 0.00 | 1.91 |
| Windham Falls Estates Holiday Retirement | — | 37 | 2017 · 1 | 28.58 | 6.04 |
| WM 2200 Wal-Mart Stores East, LP | Discount Department Stores | 171 | 2016–2025 · 6 | 2.12 | 4.54 |
Alphabetical order — this site ranks no one. TRIR = recordable cases × 200,000 ÷ hours worked, for the latest year the establishment filed. The industry median is that of establishments filing with OSHA in the same 4-digit NAICS industry and year; a median of 0.00 means that at least half of them recorded no case that year. Select a name for the full year-by-year record. How to read this.