| TJS Bathrooms & Kitchens Ltd | Construction | 2021 |
| TK Couture Ltd | Wholesale & retail | 2024 |
| Tk&Sk Limited | Wholesale & retail | 2025 |
| TKY Autos Ltd | Wholesale & retail | 2025 |
| Tkypuk Ltd | Wholesale & retail | 2026 |
| Tkyup Ltd | Wholesale & retail | 2025 |
| TL Development Property Ltd | Real estate | 2020 |
| TL Huddersfield Limited | Hospitality | 2026 |
| Tlc&C (Consultancy) Limited | Real estate | 2007 |
| TLG Structures Limited | Construction | 2020 |
| TLR Performance Ltd | Wholesale & retail | 2024 |
| TLT Management Limited | Real estate | 2016 |
| TM Locum Solutions Ltd | Health & social care | 2018 |
| TM Medico Legal Ltd | Health & social care | 2019 |
| TM Plumbing & Heating HFD Ltd | Construction | 2023 |
| TMA Trustee Company Limited | Professional & scientific | 2018 |
| TMG Estates Limited | Real estate | 2022 |
| TMG Property Investments Limited | Real estate | 2012 |
| TN Trading Huddersfield Ltd | Wholesale & retail | 2018 |
| TNA Property Ltd | Real estate | 2024 |
| TNC Cleaning Solution Limited | Administrative & support | 2025 |
| TNS 365 Limited | Information & communication | 2018 |
| Toasty Kitchens Ltd | Wholesale & retail | 2018 |
| Tobest Healthcare Solutions Limited | Health & social care | 2025 |
| Today's Bathrooms Limited | Wholesale & retail | 2016 |
| Todd Psychology Limited | Professional & scientific | 2017 |
| Tojo Bar Ltd | Hospitality | 2025 |
| Tolson Care Limited | Health & social care | 2021 |
| TOM Batley (Engineering Services) Limited | Professional & scientific | 2002 |
| TOM Bushell Live Ltd | Arts & recreation | 2026 |
| TOM Stringer Upholstery Limited | Manufacturing | 2018 |
| Tommy's Lounge Ltd | Hospitality | 2022 |
| Tomsar Engineering Ltd | Manufacturing | 2021 |
| Tonalex 1 | Administrative & support | 2014 |
| Tonalex 2 | Administrative & support | 2014 |
| Tonalex 3 | Administrative & support | 2014 |
| Tonalex a | Administrative & support | 2014 |
| Tonia Victoria Fitness Ltd | Manufacturing | 2024 |
| Tonisoft Technologies Limited | Information & communication | 2025 |
| Tonjan 1 | Administrative & support | 2014 |
| Tonjan 2 | Administrative & support | 2014 |
| Tonjan 3 | Administrative & support | 2014 |
| Tonjan 4 | Administrative & support | 2014 |
| Tony Bearder Electrical Ltd | Construction | 2025 |
| Tony LEE First AID Training Limited | Health & social care | 2013 |
| Tony's Business Ltd | Construction | 2025 |
| Toot Investments Limited | Financial services | 2012 |
| Top Beds Bespoke Ltd | Wholesale & retail | 2020 |
| Top Body Limited | Arts & recreation | 2024 |
| Top Class Schoolwear Ltd | Wholesale & retail | 2024 |
| Top Decor & Property Limited | Construction | 2026 |
| Top Empire Establishment Limited | Extraterritorial | 2017 |
| Top END Supplies Limited | Wholesale & retail | 2020 |
| Top Express UK Limited | Wholesale & retail | 2018 |
| Top HAT Developments Limited | Construction | 2002 |
| Top Notch Joinery HD Ltd | Construction | 2013 |
| Top Pack Co Limited | Manufacturing | 2022 |
| Top Taste (Hudds) Ltd | Hospitality | 2025 |
| Top Tech Point Limited | Wholesale & retail | 2022 |
| Top Tier Media Limited | Manufacturing | 2025 |
| Topec Holdings Limited | Transport & logistics | 2015 |
| Topec Properties Limited | Real estate | 2021 |
| Topham Transport (Yorkshire) Limited | | 1982 |
| Topkenn Cleaning Service Limited | Administrative & support | 2025 |
| Toplink Cleaning Service Ltd | Administrative & support | 2025 |
| Tops Huddersfield Ltd | Real estate | 2024 |
| Tops'N'Bottoms Limited | Wholesale & retail | 2024 |
| Topscape Limited | Administrative & support | 2025 |
| Torbett Holdings Ltd | Construction | 2025 |
| Torbett Travels Ltd | Administrative & support | 2026 |
| Torchbearer Interactive Ltd | Information & communication | 2016 |
| Torcomms Limited | Information & communication | 2025 |
| Torgnyson Ltd | Professional & scientific | 2026 |
| Torq Consulting Ltd | Professional & scientific | 2018 |
| Torque Business Solutions Ltd | Professional & scientific | 2013 |
| Torsten Limited | Real estate | 2023 |
| Total Car Wash Ltd | Wholesale & retail | 2017 |
| Total CNC Repairs Limited | Professional & scientific | 2009 |
| Total Convenience (Yorkshire) Limited | Wholesale & retail | 2013 |
| Total Dilapidations Service Limited | Administrative & support | 2012 |
| Total GAS Technology Limited | Construction | 2008 |
| Total Interior Contracts Ltd | Construction | 2014 |
| Total Laundry Systems Ltd | Manufacturing | 2026 |
| Total Masonry Solutions Ltd | Construction | 2015 |
| Total SA Limited | Financial services | 2022 |
| Total Solutions Consultancy Limited | Professional & scientific | 1993 |
| Total Trendz Ltd | Wholesale & retail | 2025 |
| Total Workspace Solutions Ltd | Wholesale & retail | 2012 |
| Touch Clean Limited | Administrative & support | 2022 |
| Tovy Property Limited | Real estate | 2012 |
| TOW & Go Transport Ltd | Wholesale & retail | 2024 |
| Towerbarn Property Co. Limited | Real estate | 1992 |
| Town & Country Insurance Brokers Ltd | Financial services | 2010 |
| Town & Country Properties (Twin Trees) Ltd | Real estate | 2019 |
| Town & Country Properties (Yorkshire) Ltd | Real estate | 2017 |
| Town and Country Financial Services (UK) Ltd | Financial services | 2008 |
| Town Express HUD Ltd | Wholesale & retail | 2021 |
| Town Pizza Ltd | Hospitality | 2025 |
| Town Spares Ltd | Other services | 2025 |
| Town Sports & Entertainment Group Limited | Arts & recreation | 1992 |