| THE Cosmetic & Beauty Lounge Limited | Other services | 2017 |
| THE Dolly TUB Ltd | Other services | 2017 |
| THE Face Space Lincs Ltd | Other services | 2026 |
| THE Fishdock Fryer Ltd | Hospitality | 2026 |
| THE Flag Wizard Limited | Extraterritorial | 2008 |
| THE Gingerbread House DN Ltd | Hospitality | 2019 |
| THE Grimsby Fish GUY Ltd | Wholesale & retail | 2021 |
| THE Grumpy Kitchen Ltd | Hospitality | 2023 |
| THE Hair Saloon Limited | Other services | 2024 |
| THE Haunted Alchemist Ltd | Wholesale & retail | 2024 |
| THE Haven Inn Limited | Hospitality | 2017 |
| THE Hive Cleethorpes Limited | Other services | 2022 |
| THE Joseph Lorraine Bewick Trading Company Ltd | Hospitality | 2025 |
| THE Kingsway Club Ltd | Hospitality | 2019 |
| THE Laurels Maintenance Company Ltd | Construction | 2022 |
| THE Marketing Firm Agency Ltd | Administrative & support | 2024 |
| THE Motorsport Group Ltd | Arts & recreation | 2025 |
| THE Other Collective CIC | Arts & recreation | 2025 |
| THE Parkway Group Limited | Financial services | 2020 |
| THE PEA Bung Limited | Hospitality | 2017 |
| THE Pizza Kitchen Ltd | Hospitality | 2025 |
| THE Safety Practice Limited | Professional & scientific | 2017 |
| THE Smugglers Limited | Hospitality | 2002 |
| THE Sunrise Centre Limited | Wholesale & retail | 2019 |
| THE Sweetie TIN Limited | Wholesale & retail | 2023 |
| THE Traditional Building Company Limited | Construction | 2014 |
| THE Vines Guesthouse Limited | Hospitality | 2023 |
| THE Working Tools Limited | Information & communication | 2024 |
| There and Back Fast Ltd | Transport & logistics | 2025 |
| Theridion Technologies Ltd. | Information & communication | 2016 |
| Thesa Investments Limited | Hospitality | 2017 |
| THG GRP Ltd | Wholesale & retail | 2026 |
| Think Bubble DS Limited | Wholesale & retail | 2022 |
| Thinkhealth Ltd | Health & social care | 2019 |
| Thomas Lettings Grimsby Limited | Households | 2022 |
| Thomas Mantripp Racing Team Ltd | Arts & recreation | 2022 |
| Thrunscoe Holdings Ltd | Financial services | 2021 |
| Thrunscoe Primary and Nursery Academy | Education | 2012 |
| Tidy Property Services Limited | Households | 2022 |
| Tifflec Ltd | Construction | 2025 |
| Tiger Transport and Recovery Services Limited | Transport & logistics | 2019 |
| Tile Services Limited | Wholesale & retail | 2021 |
| TJP Civil Engineering Limited | Construction | 2019 |
| TLK Designs Ltd | Wholesale & retail | 2025 |
| TM Maintenance Lincs Ltd | Real estate | 2025 |
| TMC Projects Limited | Professional & scientific | 2018 |
| Toby Trans Ltd | Transport & logistics | 2025 |
| Todd Willis Engineering Services Ltd | Professional & scientific | 2021 |
| Tolls Metals Ltd | Wholesale & retail | 2025 |
| Tony Marklew Ltd | Arts & recreation | 2016 |
| Tony's Fish Limited | Wholesale & retail | 2002 |
| Topuz Ltd | Other services | 2022 |
| Total Tree and Vegetation Solutions Ltd | Administrative & support | 2025 |
| Totalclean Solutions Limited | Other services | 2003 |
| Tower Services (Grimsby) Limited | Other services | 2013 |
| Town & Country Cars Limited | Wholesale & retail | 2010 |
| TP Training & Resources Ltd | Education | 2023 |
| TPJ Services Ltd | Construction | 2014 |
| TR Carpets Limited | Wholesale & retail | 2008 |
| Trade&Driver Services Limited | Transport & logistics | 2023 |
| Treehub Services Ltd | Construction | 2022 |
| Triple 8 Management Limited | Professional & scientific | 2022 |
| TSH Properties Ltd | Real estate | 2016 |
| TTC Properties Ltd | Construction | 2017 |
| TVM Contract Services Limited | Extraterritorial | 2023 |
| TWB Contractors Limited | Construction | 2023 |
| Two.Marketing Ltd | Professional & scientific | 2020 |
| Twofold Entertainment Ltd | Arts & recreation | 2022 |
| TYE Holmes Ltd | Wholesale & retail | 2023 |
| TYE Properties Limited | Real estate | 2019 |
| Tyme Services Limited | Professional & scientific | 2024 |
| UGR Traction Limited | Transport & logistics | 2021 |
| UK Catering and Consulatancy Co Limited | Hospitality | 2025 |
| UK Rigging Resources Ltd | Construction | 2022 |
| Ultragreen BIO Methanol Ltd | Professional & scientific | 2024 |
| Ultragreen Hydrogen Limited | Professional & scientific | 2021 |
| Ultrasonics Flightcases Limited | Manufacturing | 2014 |
| Under the Clock Limited | Wholesale & retail | 2003 |
| Uniprogress Ltd. | Professional & scientific | 2012 |
| Universal Building and Joinery Ltd | Construction | 2023 |
| Universal Leisure Solutions Limited | Extraterritorial | 2011 |
| Upgraded ERA Solutions Ltd | Information & communication | 2025 |
| Urban PK Limited | Hospitality | 2026 |
| Urban Sidestreet Ltd | Hospitality | 2025 |
| Utilities R US (UK) Ltd | Administrative & support | 2012 |
| UTM Enterprises Limited | Hospitality | 2020 |
| V Heat Plumbing & Heating Limited | Construction | 2025 |
| Valecrest Marketing Limited | Transport & logistics | 2002 |
| Vanmat Campers Limited | Wholesale & retail | 2026 |
| Vanply Services Ltd | Wholesale & retail | 2022 |
| Vaverite Solutions Ltd | Professional & scientific | 2024 |
| Velkas Food and Wine Limited | Wholesale & retail | 2025 |
| Venneys at the Granby Limited | Hospitality | 2025 |
| Verona Pizzeria Limited | Hospitality | 2006 |
| Vicarious Safety Limited | Public administration | 2020 |
| Vicolad Media Limited | Manufacturing | 2025 |
| Vinelow Limited | Arts & recreation | 1983 |
| Viorel Transport Logistic Ltd | Transport & logistics | 2025 |
| VIP Bins Grimsby Ltd | Administrative & support | 2023 |
| Visit Cleethorpes Limited | Wholesale & retail | 2023 |