| TL Squared Limited | Information & communication | 2024 |
| Tlbl Properties Limited | Real estate | 2025 |
| TLC Consulting Limited | Professional & scientific | 2025 |
| Tldb Limited | Wholesale & retail | 2024 |
| TLF Film Limited | Information & communication | 2024 |
| TLI Horwich Limited | Hospitality | 2020 |
| Tlig Holdings Limited | Transport & logistics | 2015 |
| TLK Capital Investment Management Limited | Real estate | 2012 |
| TLK Holdings Ltd | Financial services | 2019 |
| TLK Hotel Purfleet Limited | Hospitality | 2021 |
| TLK Property Investments Ltd | Real estate | 2020 |
| TLK Serviced Apartments Limited | Hospitality | 2016 |
| TM Bolton Limited | Hospitality | 2024 |
| TM Constructions Bolton Limited | Construction | 2020 |
| TM DEL Ltd | Transport & logistics | 2018 |
| TM Digital Services Ltd | Transport & logistics | 2025 |
| TM Freeholds Limited | Real estate | 2016 |
| Tm-Maha Services Ltd | Construction | 2025 |
| TMA GAS Ltd | Construction | 2017 |
| Tmbl Ltd | Construction | 2025 |
| TMC Industries Ltd | Information & communication | 2019 |
| TMC North West Limited | Manufacturing | 2020 |
| TMD Global Limited | Wholesale & retail | 2017 |
| TMF Collective Ltd | Other services | 2024 |
| TMF Metalcraft Ltd | Manufacturing | 2025 |
| TMG Collective Products Limited | Wholesale & retail | 2025 |
| TMG Cosmetics Ltd | Other services | 2024 |
| TMI Outreach UK Limited | Education | 2010 |
| Tmmc the Manchester Motor Company Ltd | Wholesale & retail | 2018 |
| Tmnk Ltd | Manufacturing | 2007 |
| Tmoor Ltd | Wholesale & retail | 2018 |
| TMS Aesthetics Training Academy Ltd | Education | 2026 |
| TMT Fort Fitness Limited | Arts & recreation | 2024 |
| TMW DRY Risers Ltd | Construction | 2019 |
| Tmyim Film Limited | Information & communication | 2016 |
| TMZ Logistics Ltd | Transport & logistics | 2024 |
| Tn-Media Ltd | Information & communication | 2020 |
| TNA Consultancy Ltd | Real estate | 2025 |
| TNF Foods Ltd | Manufacturing | 2018 |
| TNT Analytics Ltd | Information & communication | 2025 |
| TNT Aquatics Ltd | Wholesale & retail | 2024 |
| TNZ Global Networks Ltd | Wholesale & retail | 2023 |
| TNZ Mobiles Ltd | Wholesale & retail | 2023 |
| TO22.COM Limited | Financial services | 1972 |
| Toag Trans Ltd | Transport & logistics | 2018 |
| Tobias Jackson Consulting Ltd | Administrative & support | 2023 |
| Toby Thompson Flooring Limited | Construction | 2024 |
| Tobys 3D Prints Ltd | Manufacturing | 2026 |
| Tock Ltd | Wholesale & retail | 2026 |
| Todayvan Delivery Courier Limited | Transport & logistics | 2026 |
| Todaywillbe.Com Limited | Other services | 2020 |
| Todd James Handcrafted Kitchens and Bedrooms Limited | Construction | 2019 |
| Todds Services Limited | Wholesale & retail | 2024 |
| Todshey Limited | Real estate | 2025 |
| Together YOU CAN Ltd | Education | 2025 |
| Togetherness Network UK CIC | Hospitality | 2026 |
| Tohl International Ltd | Wholesale & retail | 2003 |
| Token Power Limited | Energy | 2020 |
| Tola Food Production Ltd | Manufacturing | 2026 |
| Tolar Construct Ltd | Construction | 2020 |
| TOM Gallagher Limited | Construction | 1991 |
| TOM Luke Tennis CIC | Arts & recreation | 2022 |
| TOM Mulenge Limited | Health & social care | 2022 |
| TOM Mulenge Music CIC | Other services | 2023 |
| TOM YAM Holdings Limited | Financial services | 2022 |
| TOM YAM Monton Limited | Hospitality | 2021 |
| TOM YAM Poynton Limited | Hospitality | 2023 |
| Tom's Bargain Corner Limited | Wholesale & retail | 2021 |
| Tomas and Joseph Ltd | Health & social care | 2015 |
| Tomasd Ltd | Transport & logistics | 2024 |
| Tomczyk Ltd | Transport & logistics | 2019 |
| Tomideen Ltd | Real estate | 2024 |
| Tomlinsons Plant Ltd | Construction | 2015 |
| Tommia Limited | Energy | 2015 |
| Tommy's Darts Limited | Manufacturing | 2021 |
| Tomoco UK Ltd | Transport & logistics | 2006 |
| Toms Affordable Cars Limited | Wholesale & retail | 2017 |
| Tonge Builders Ltd | Construction | 2016 |
| Tonge Car Sales Limited | Wholesale & retail | 2020 |
| Tonge Fold Local Store Ltd | Wholesale & retail | 2022 |
| Tonge Leisure Ltd | Hospitality | 2003 |
| Tonge Mini Market Ltd | Wholesale & retail | 2025 |
| Tonge Moor Bargains Ltd | Wholesale & retail | 2025 |
| Tonge Moor Convenience Store Ltd | Wholesale & retail | 2026 |
| Tonge Moor Pizzeria Limited | Hospitality | 2018 |
| Tonge Moor Road Management Ltd | Real estate | 2012 |
| Tonge Moor Vapes Limited | Wholesale & retail | 2023 |
| Tongmoor Shop Limited | Wholesale & retail | 2026 |
| Tongs Bolton Ltd | Hospitality | 2019 |
| Tonsor Male Grooming Ltd | Other services | 2021 |
| Tonsor Properties Ltd | Households | 2024 |
| Tony Comley Limited | Professional & scientific | 2023 |
| Tony Dixon Homes & Gardens Limited | Administrative & support | 2024 |
| Tony Jeal Transport Recovery Limited | Transport & logistics | 2025 |
| Tony's Bodywork & Valeting Ltd | Wholesale & retail | 2025 |
| Tony's Hand Car Wash Limited | Other services | 2011 |
| Tony's OFF Licence Limited | Wholesale & retail | 2007 |
| Toolschampcleaningservices Limited | Administrative & support | 2026 |
| Toor Superstore BL Ltd | Wholesale & retail | 2025 |
| Tooth Artist Ltd | Health & social care | 2026 |