| Thande Ltd | Health & social care | 2019 |
| Thandistrends Limited | Wholesale & retail | 2025 |
| Thandor Limited | Health & social care | 2013 |
| Thanks to Earth Ltd | Manufacturing | 2021 |
| Tharm Ltd | Real estate | 2025 |
| That Doggy in the Window Ltd. | Wholesale & retail | 2024 |
| That GUY Beard Care Limited | Other services | 2022 |
| That Old Chestnut Ltd | Wholesale & retail | 2016 |
| That's Amore Leeds Limited | Hospitality | 2016 |
| Thatname Woman | Health & social care | 2019 |
| Thats HOW the Light Gets in Limited | Professional & scientific | 2018 |
| Thatshallot Limited | Manufacturing | 2013 |
| Thatyummyfoodplace Ltd | Hospitality | 2026 |
| That’S Pearly Limited | Manufacturing | 2025 |
| THB Cross Gates Ltd | Other services | 2024 |
| THD International Ltd | Transport & logistics | 2024 |
| THE Greenleaf Care Solutions Ltd | Health & social care | 2022 |
| THE 2 Glamz Hair and Beauty Studio Limited | Other services | 2016 |
| THE 90 Day Game Changer Limited | Wholesale & retail | 2020 |
| THE 90 Day Money Game Limited | Wholesale & retail | 2020 |
| THE Academy at the Glam Bar Leeds Ltd | Other services | 2019 |
| THE Academy of Facial Aesthetics Ltd | Education | 2020 |
| THE Acapella Leeds Ltd | Hospitality | 2023 |
| THE Accident Aftercare Company (Leeds) Limited | Other services | 2012 |
| THE Adaptive Design Studio Ltd | Professional & scientific | 2024 |
| THE Aesthetic Paramedic Ltd | Health & social care | 2022 |
| THE Aesthetics Diaries Ltd | Professional & scientific | 2023 |
| THE African Financial & Economic Crimes Academy | Professional & scientific | 2015 |
| THE After Work Club Limited | Other services | 2020 |
| THE Agile Warehouse Ltd | Information & communication | 2016 |
| THE Aire and Ouse Farms Limited | Agriculture & fishing | 1915 |
| THE Aireborough Learning Partnership - a Co-Operative Trust | Education | 2013 |
| THE Albert Public House Limited | Hospitality | 2018 |
| THE Alchemist Coffee Company Ltd | Hospitality | 2016 |
| THE Alders (Allerton Park) Management Company Limited | Households | 1998 |
| THE Aligned Self Consultancy Ltd | Health & social care | 2026 |
| THE Allegory Artwork Ltd | Wholesale & retail | 2024 |
| THE Allegory Practice Ltd | Health & social care | 2024 |
| THE Alternative Wedding Collective Ltd | Professional & scientific | 2018 |
| THE Alwoodley Golf Club Trustee Company Ltd | Real estate | 2023 |
| THE Amazing Grace Christian Centre | Other services | 2016 |
| THE Antiques Collective Ltd | Wholesale & retail | 2022 |
| THE Arches Social Community Interest Company | Hospitality | 2025 |
| THE Architects' Bureau Ltd | Professional & scientific | 2014 |
| THE ARK Design & Print Limited | Information & communication | 2002 |
| THE ARK Marketing & Media Ltd | Professional & scientific | 2017 |
| THE ARK Smallholding Ltd | Education | 2020 |
| THE Artist Development Academy Ltd | Information & communication | 2025 |
| THE Ascendance Repertory Company Limited | Arts & recreation | 2005 |
| THE Asda Foundation | Administrative & support | 2008 |
| THE Assembly (Crossgates) Limited | Hospitality | 2019 |
| THE Association of Direct Medical Experts Limited | Administrative & support | 2015 |
| THE Atelier Project CIC | Education | 2025 |
| THE Athlete Factory Ltd | Administrative & support | 2014 |
| THE Atrium Management Company (Greek Street) Limited | Households | 1999 |
| THE Automart Lagos Ltd | Health & social care | 2022 |
| THE Automation Agency Ltd | Information & communication | 2023 |
| THE Autumn Project Ltd | Administrative & support | 2020 |
| THE Avenue Clinic Ltd | Health & social care | 2022 |
| THE Avenue Fish Bar Ltd | Hospitality | 2021 |
| THE Avenue Medical Group Ltd | Health & social care | 2024 |
| THE Avenue Ultrasound Ltd | Health & social care | 2024 |
| THE BAD Toolkit Ltd | Professional & scientific | 2017 |
| THE Ballet Retreat Ltd | Arts & recreation | 2021 |
| THE Bandsaw Shop Limited | Professional & scientific | 2024 |
| THE Bar With NO Name Limited | Hospitality | 2009 |
| THE Barbers @ Rmuk Ltd | Other services | 2022 |
| THE Barbers Shop Garforth Ltd | Other services | 2017 |
| THE Barkbers Ltd | Other services | 2025 |
| THE Barn at Emsleys Farm Ltd | Education | 2013 |
| THE Barn Community Enterprise Ltd | Hospitality | 2013 |
| THE Barn Nursery & Preschool Ltd | Health & social care | 2023 |
| THE Barr Agency Limited | Professional & scientific | 1996 |
| THE Barrow Property Consultancy Ltd | Professional & scientific | 2022 |
| THE Bartlett Foundation | Education | 1995 |
| THE Base Retreat Ltd | Other services | 2026 |
| THE Bath Bomb Shop Ltd | Manufacturing | 2017 |
| THE Bathroom House Limited | Wholesale & retail | 2015 |
| THE Beach Tanning and Beauty Ltd | Other services | 2026 |
| THE Bear Ingdown Company | Financial services | 2020 |
| THE Bear Mining Group Limited | Financial services | 2023 |
| THE Beast UK Productions Ltd | Arts & recreation | 2023 |
| THE Beauty Coven Ltd | Other services | 2022 |
| THE Beauty Studio (Leeds) Limited | Other services | 2013 |
| THE Beauty Works Clinic Ltd | Other services | 2025 |
| THE BED Company Leeds Ltd | Manufacturing | 2024 |
| THE Beehive Veterinary Practice Ltd | Professional & scientific | 2020 |
| THE Beer People Limited | Wholesale & retail | 2014 |
| THE Belgravia (Leeds) Flat Company Limited | Real estate | 2024 |
| THE Bell in Driffield Limited | Hospitality | 1984 |
| THE Bell Tent Shop Limited | Wholesale & retail | 2020 |
| THE Belling Desk Limited | Administrative & support | 2023 |
| THE Belmont Headingley Management Company Limited | Households | 2023 |
| THE BEN Manning Music Foundation | Education | 2011 |
| THE BEN Manning Music Foundation Shops Ltd | Wholesale & retail | 2012 |
| THE Best of Yorkshire Limited | Administrative & support | 2015 |
| THE Beta Theory Limited | Professional & scientific | 2025 |
| THE Beulah Bistro Ltd | Hospitality | 2019 |
| THE Big Barn JLI Limited | Real estate | 2022 |
| THE Big Bookend Limited | Arts & recreation | 2012 |