| Thalatta Films Ltd | Information & communication | 2014 |
| Thambiyah Ltd | Wholesale & retail | 2025 |
| THE 72 Collective Ltd | Professional & scientific | 2025 |
| THE Author's Odyssey Limited | Arts & recreation | 2021 |
| THE Bespoke Mortgage Business Ltd | Financial services | 2018 |
| THE Bluebird Clearance Co Limited | Water & waste | 2015 |
| THE Bristle Brush Company Limited | Wholesale & retail | 2012 |
| THE Calne TAP Limited | Hospitality | 2025 |
| THE Canine Couple Ltd | Other services | 2025 |
| THE Central Avenue Property Company Limited | Households | 1989 |
| THE Chalfont Dog Spa Limited | Other services | 2024 |
| THE Change Praxis Ltd | Professional & scientific | 2019 |
| THE Cleaner Service Limited | Administrative & support | 2011 |
| THE Confederation, Hillingdon CIC | Health & social care | 2017 |
| THE Construction Services Agency Limited | Construction | 2014 |
| THE Consultancy Partners Limited | Professional & scientific | 2008 |
| THE Curtis Partnership Limited | Professional & scientific | 2015 |
| THE Dietitian Global Ltd | Other services | 2021 |
| THE DPG Agency Ltd | Professional & scientific | 2020 |
| THE Energy Engineers Ltd | Energy | 2018 |
| THE Event Cooperative Limited | Professional & scientific | 2020 |
| THE Face and Body Clinic Ltd | Health & social care | 2002 |
| THE Fitnwell MP Ltd | Education | 2024 |
| THE Flavour Cart Ltd | Hospitality | 2026 |
| THE Flying Masseur Ltd | Other services | 2012 |
| THE Functional Osteopath Limited | Health & social care | 2019 |
| THE G Clothing Store Limited | Wholesale & retail | 2025 |
| THE George Property Group Limited | Real estate | 2024 |
| THE Ghetto Hedge Group Ltd | Financial services | 2021 |
| THE Global Luxury Closet Ltd | Wholesale & retail | 2018 |
| THE Grade Doctor Tuition Limited | Education | 2020 |
| THE Guidance Centre | Education | 2024 |
| THE Harbour Cafe Margate Limited | Hospitality | 2019 |
| THE HLH Imaging Group Limited | Health & social care | 2020 |
| THE Homestead Childcare Ltd | Education | 2016 |
| THE HOP Chapel Limited | Hospitality | 2025 |
| THE Hope Village C.I.C. | Public administration | 2025 |
| THE House of Bursford Ltd | Administrative & support | 2022 |
| THE Hush Group Ltd | Wholesale & retail | 2013 |
| THE Imagination Hub Ltd | Education | 2023 |
| THE Japanese Way Limited | Hospitality | 2022 |
| THE JOE Donoghue Football Academy Ltd | Education | 2024 |
| THE Jungle BUS Limited | Arts & recreation | 2012 |
| THE Kettle Co (London) Ltd | Wholesale & retail | 2017 |
| THE Life Observatory Limited | Professional & scientific | 2009 |
| THE Little Academy Limited | Education | 2003 |
| THE Meghji Group Ltd | Real estate | 2021 |
| THE Minifigure Emporium Ltd | Wholesale & retail | 2026 |
| THE Music & Media Platform CIC | Administrative & support | 2024 |
| THE Natural MUM Marketing Limited | Administrative & support | 2024 |
| THE Neac Trading Company Limited | Wholesale & retail | 2004 |
| THE Old Merquirks Ltd | Other services | 2020 |
| THE Party BUS Limited | Transport & logistics | 2008 |
| THE Peek Partnership Ltd | Professional & scientific | 2015 |
| THE Poetry Takeaway Limited | Arts & recreation | 2017 |
| THE Present Founder Limited | Professional & scientific | 2026 |
| THE Property Guarantee Group Limited | Real estate | 2023 |
| THE Property Planner Limited | Professional & scientific | 2013 |
| THE Pulpit Limited | Hospitality | 2025 |
| THE Roofing Company (London) Ltd | Construction | 2021 |
| THE Rosso Art Company Limited | Arts & recreation | 2016 |
| THE Scoring House Limited | Professional & scientific | 2010 |
| THE Sizzle Restaurant Ltd | Hospitality | 2020 |
| THE Sort System Ltd | Wholesale & retail | 2022 |
| THE Space Design London Limited | Wholesale & retail | 2010 |
| THE Stylux Journey Ltd | Administrative & support | 2021 |
| THE Three Crowns Chippenham Limited | Hospitality | 2025 |
| THE Time Team Limited | Professional & scientific | 2019 |
| THE Trade Academy Ltd | Information & communication | 2020 |
| THE UK Board for Learning and Training Ltd | Education | 2025 |
| THE UK Coaching Consulting Company Ltd | Professional & scientific | 2022 |
| THE Vespertine Partnership Ltd | Information & communication | 2021 |
| THE Visionary World Ltd | Professional & scientific | 2023 |
| THE Welcome Solution Company Ltd | Other services | 2020 |
| THE Wellness Standard Ltd | Wholesale & retail | 2025 |
| THE Write Shirt Limited | Wholesale & retail | 2018 |
| Thebigheart Ltd | Health & social care | 2023 |
| Thikarmar Developments Ltd | Real estate | 2016 |
| Think Fit LDN Limited | Education | 2017 |
| Thinkfit Education Ltd | Education | 2020 |
| Thinksono Ltd | Professional & scientific | 2016 |
| Thinksono Nominee Ltd | Professional & scientific | 2020 |
| THM Architecture Ltd | Construction | 2020 |
| Thomas Ad-Venture Ltd | Hospitality | 2025 |
| Thoracic Limited | Health & social care | 2020 |
| Thorney Meadows Ltd | Real estate | 2014 |
| Thorntail Ltd | Professional & scientific | 2021 |
| Thought Forge Ltd | Information & communication | 2023 |
| Thumps UP Ltd | Real estate | 2024 |
| Thunderbox Limited | Information & communication | 2014 |
| Thurga Enterprises Limited | Real estate | 2006 |
| Thurlow Properties Limited | Real estate | 2021 |
| Tico Technology Ltd | Information & communication | 2019 |
| Tile Basket Limited | Wholesale & retail | 2025 |
| Tilgate Lakeside Cafe Ltd | Hospitality | 2020 |
| Timbawala Consultancy Ltd | Information & communication | 2015 |
| Time for YOU Worthing Limited | Administrative & support | 2018 |
| Timpson Properties Limited | Construction | 2009 |
| Timsam Ltd | Wholesale & retail | 2018 |
| TIN CAN Media Ltd | Administrative & support | 2009 |