| THE Hollies Management (Buxton) Limited | Households | 2004 |
| THE in Accessories Limited | Manufacturing | 2013 |
| THE Knights Table Limited | Hospitality | 2010 |
| THE Little Green Construction Company Ltd | Construction | 2021 |
| THE London House Restoration Company Limited | Construction | 2004 |
| THE Longhill Design Company Ltd | Professional & scientific | 2024 |
| THE Merchant's Yard Limited | Hospitality | 2015 |
| THE Moorland Cafe Ltd | Hospitality | 2023 |
| THE Mulberry Bush Ashbourne Ltd | Education | 2015 |
| THE NO. 1 Pain Relief Clinic Ltd | Health & social care | 2011 |
| THE Normans Hall Mews Management Company Limited | Households | 2019 |
| THE Old Coach House Limited | Hospitality | 2025 |
| THE Old Manse Guest House Limited | Hospitality | 2023 |
| THE Old Sun Inn Limited | Hospitality | 2017 |
| THE Old Town Hall Buxton Limited | Other services | 2026 |
| THE Original Smokey Joe's (Highpeak) Limited | Wholesale & retail | 2014 |
| THE Parks Inn Ltd | Hospitality | 2026 |
| THE Peaks Preschool Limited | Health & social care | 2026 |
| THE Property Organiser Ltd | Construction | 2006 |
| THE Property People Manchester Ltd | Real estate | 2016 |
| THE Residents of Fairfield CIC | Hospitality | 2026 |
| THE Rockfield Partnership Limited | Professional & scientific | 2001 |
| THE Rose Laser Room Ltd | Other services | 2022 |
| THE Schoolhouse Management Company (High Peak) Limited | Households | 2006 |
| THE Star at Tideswell Limited | Hospitality | 2018 |
| THE Swan Buxton Ltd | Hospitality | 2025 |
| THE Talent Mentor Ltd | Administrative & support | 2025 |
| THE TCB Workshop Limited | Agriculture & fishing | 2004 |
| THE Tech Shepherd Limited | Information & communication | 2025 |
| THE Vault (Buxton) Limited | Hospitality | 2003 |
| THE Vault Incorporated Limited | Hospitality | 2021 |
| THE Yoga DEN Buxton Ltd | Health & social care | 2020 |
| Themmes Ltd | Professional & scientific | 2021 |
| Thepropertypeople Limited | Real estate | 2015 |
| Thermal Fluid Solutions Limited | Professional & scientific | 2010 |
| These Boots Consulting Ltd | Professional & scientific | 2026 |
| Thirkelow Limited | Hospitality | 2017 |
| This IS NOT a Game Ltd | Manufacturing | 2023 |
| Thomas Ernest Limited | Information & communication | 2010 |
| Thorough Clean North Laundry Service Ltd | Administrative & support | 2024 |
| Thorough Clean North West Ltd | Administrative & support | 2020 |
| THP Williams Limited | Extraterritorial | 2026 |
| THQ Buxton Ltd | Administrative & support | 2015 |
| THQ Education Ltd | Education | 2022 |
| THQ Group Ltd | Financial services | 2017 |
| Three Shires IT Limited | Information & communication | 2017 |
| Thrive Coaching & Training Ltd | Health & social care | 2025 |
| Throstles CI Ltd | Professional & scientific | 2025 |
| Tic-Tak (Buxton) Ltd | Transport & logistics | 2020 |
| Tideswell Business Development Ltd | Information & communication | 2020 |
| Tideswell Preschool Ltd | Education | 2008 |
| TIN MAN Scrap Ltd | Wholesale & retail | 2016 |
| Tipis in the Peak Installations Ltd | Construction | 2026 |
| Tipis in the Peak Ltd | Administrative & support | 2026 |
| TLP Electrical (Buxton) Limited | Construction | 2016 |
| Tlrt Limited | Other services | 2017 |
| Tmjtransport.Com Ltd | Transport & logistics | 2019 |
| Together Trade Ltd | Wholesale & retail | 2021 |
| Tolley Ltd | Professional & scientific | 2005 |
| TOM SON (Buxton) Limited | Wholesale & retail | 1996 |
| Tonertastic Limited | Wholesale & retail | 2010 |
| Top Cutz Barber (Buxton) Limited | Other services | 2021 |
| Top House Tideswell Limited | Real estate | 2022 |
| Topicnew Enterprises Limited | Professional & scientific | 1998 |
| Tornamoine Farm Limited | Agriculture & fishing | 2024 |
| Total REX Limited | Arts & recreation | 2023 |
| Town & Country (Northern) Limited | Wholesale & retail | 2001 |
| Town & Country Bulk Packaging Limited | Administrative & support | 2019 |
| Town & Country Haulage Ltd | Transport & logistics | 2009 |
| Town and Country Aggregates Limited | Extraterritorial | 2009 |
| Tracker Trading FX Ltd | Wholesale & retail | 2021 |
| Transition Buxton C.I.C. | Wholesale & retail | 2013 |
| Tree Research, Education and Environmental Services Ltd. | Education | 2014 |
| Treeceipt Limited | Information & communication | 2024 |
| Trish Brown Ltd | Professional & scientific | 2004 |
| Tritexius Limited | Professional & scientific | 2024 |
| True Rise Ltd | Hospitality | 2025 |
| Turquoise Design Limited | Professional & scientific | 2012 |
| Uber Competitions Limited | Information & communication | 2024 |
| UK Game Angling Limited | Wholesale & retail | 2010 |
| UK Scaffold Designs Limited | Professional & scientific | 2022 |
| UK System Scaffold Hire Holdings Limited | Financial services | 2020 |
| Ultrotherm Limited | Manufacturing | 2014 |
| Under the Arches Storage Limited | Transport & logistics | 2024 |
| Underhill Farm Ltd | Agriculture & fishing | 2019 |
| Underwood Capital Management Ltd | Real estate | 2021 |
| Uniek Contract Services Ltd | Professional & scientific | 2019 |
| UP Hospitality Group Ltd | Hospitality | 2026 |
| Upcountry (Turkey) Limited | Other services | 1997 |
| Upper Hulme Mill Limited | Real estate | 2019 |
| Upperdale Ltd | Hospitality | 2025 |
| Upperfold Services Ltd | Transport & logistics | 2021 |
| Uppertown Tools Limited | Agriculture & fishing | 1999 |
| Upperworth Studios Ltd | Professional & scientific | 2016 |
| Upwood Retail Limited | Wholesale & retail | 2021 |
| Urban Edge Autos Ltd | Wholesale & retail | 2025 |
| Utilitek Limited | Professional & scientific | 2000 |
| Valley Engineering (Derbyshire) Ltd | Manufacturing | 2007 |
| Valley Engineering (HP) Ltd | Professional & scientific | 2017 |
| Vapour Guys Ltd | Wholesale & retail | 2024 |