| Teodor Tiron 2017 Ltd | Transport & logistics | 2017 |
| TEP Drones Ltd | Manufacturing | 2025 |
| Terry Window Cleaning Ltd | Administrative & support | 2026 |
| Tetra Project Services Ltd | Information & communication | 2023 |
| Tetragrammaton Holdings Limited | Financial services | 2023 |
| TF Estates Limited | Real estate | 2021 |
| TF LET Limited | Hospitality | 2024 |
| TFB Services Ltd | Construction | 2025 |
| TFT Properties Ltd | Real estate | 2023 |
| TG Vents Ltd | Construction | 2020 |
| Thai House Restaurant Limited | Hospitality | 2018 |
| Thai Orchid UK Restaurants Ltd | Hospitality | 2023 |
| Thames Park Real Estate Ltd | Real estate | 2022 |
| Thames Tiling Contractors Ltd | Construction | 2019 |
| That Feeling When Ltd | Health & social care | 2021 |
| That Healing Feeling Ltd | Health & social care | 2022 |
| That Pension Girl Limited | Professional & scientific | 2026 |
| Thattattooedgymguy Ltd | Professional & scientific | 2023 |
| THE 179 Bar Limited | Hospitality | 2025 |
| THE 19 Glebe Road Freehold Management Company Limited | Real estate | 2014 |
| THE 63 Motorcycle Club Limited | Other services | 2021 |
| THE Almaghrib Foundation | Education | 2013 |
| THE Assessment Team Ltd | Health & social care | 2021 |
| THE Avenue Consultancy Ltd | Professional & scientific | 2008 |
| THE Baby Basket Limited | Wholesale & retail | 2023 |
| THE Beauty Retreat Essex Limited | Other services | 2012 |
| THE Bedford Inn PUB Company Ltd | Hospitality | 2015 |
| THE Beech Collective Ltd | Professional & scientific | 2021 |
| THE Big Blue Box Limited | Administrative & support | 2002 |
| THE Big Picture Pyjamas Ltd | Real estate | 2019 |
| THE Blackbull PUB Company Ltd | Hospitality | 2015 |
| THE Blake Ashley Group Ltd | Professional & scientific | 2022 |
| THE Body & Sole Clinic UK Limited | Health & social care | 2025 |
| THE Body Edit Pilates Studio Ltd | Arts & recreation | 2026 |
| THE Boiler Replacement Company (Essex) Limited | Construction | 2013 |
| THE Buddy Ball Limited | Other services | 2021 |
| THE Butty Box Limited | Hospitality | 2020 |
| THE Calendar Magazine Ltd | Extraterritorial | 2020 |
| THE Camilla Sanderson Method Ltd | Other services | 2025 |
| THE Campion School | Education | 2011 |
| THE Cedars (Springfield Road) Management Company Limited | Real estate | 2004 |
| THE Chequers Public House Ltd | Hospitality | 2024 |
| THE Clinic Chiswick Limited | Financial services | 2015 |
| THE Clove South Asian Restaurant Limited | Hospitality | 2024 |
| THE Complete Circuit Ltd | Construction | 2025 |
| THE Deaf Agency Limited | Administrative & support | 2009 |
| THE Defining Decorators Co. Ltd | Construction | 2019 |
| THE Dental Centre Cowplain Limited | Health & social care | 2012 |
| THE Derby Oval Limited | Hospitality | 2026 |
| THE Dial Exchange Limited | Wholesale & retail | 2026 |
| THE Dirt Destroyers Limited | Administrative & support | 2021 |
| THE Dog House Hornchurch Limited | Administrative & support | 2013 |
| THE Ealing Dental Practice Limited | Health & social care | 2013 |
| THE Essex Plumbing Company Limited | Construction | 2020 |
| THE Essex Window Store Laindon Ltd | Construction | 2023 |
| THE Evergreen Drinks Company Limited | Hospitality | 2017 |
| THE Evil Corporation Ltd | Information & communication | 2012 |
| THE Farmers Friend Limited | Agriculture & fishing | 2022 |
| THE FAT Pizza Ltd | Hospitality | 2019 |
| THE Finance Fairy (London) Ltd | Information & communication | 2025 |
| THE Flash S Services Ltd | Construction | 2019 |
| THE Forge Cricket Hub Ltd | Arts & recreation | 2026 |
| THE Fyzz Facility Film 7 Limited | Information & communication | 2016 |
| THE Fyzz Facility Limited | Information & communication | 2010 |
| THE Fyzz Facility Pictures Limited | Information & communication | 2016 |
| THE Gables Dental Practice Limited | Health & social care | 2006 |
| THE H Exclusive Limited | Other services | 2021 |
| THE Hair & Beauty Shop Limited | Extraterritorial | 2015 |
| THE Happy Shop Company Global Limited | Wholesale & retail | 2025 |
| THE Havering Daily Ltd | Information & communication | 2019 |
| THE Havering Theatre Trust Limited | Arts & recreation | 1953 |
| THE Highlight Partnership Ltd | Financial services | 2023 |
| THE House of Design Felsted Ltd | Wholesale & retail | 2019 |
| THE House of Nature. Aquariums, Terrariums,Plants Limited | Financial services | 2019 |
| THE House Specialists Ltd | Real estate | 2024 |
| THE HR Handbook Ltd | Administrative & support | 2023 |
| THE Huntsmith Limited | Administrative & support | 2018 |
| THE Ideas Table Ltd | Professional & scientific | 2026 |
| THE Intérieur Limited | Information & communication | 2021 |
| THE Joy in Simple CIC | Professional & scientific | 2022 |
| THE Joyfulknot Weddings Ltd | Professional & scientific | 2025 |
| THE Junenineteen Group Ltd | Financial services | 2025 |
| THE Kaizen Network Ltd | Information & communication | 2019 |
| THE Kitchen Fitter Pro Limited | Construction | 2021 |
| THE Laureates Consultants Limited | Education | 2016 |
| THE Laurels (Weybridge) Management Company Limited | Households | 2000 |
| THE Lead in Limited | Information & communication | 2026 |
| THE Local PUB Company Limited | Professional & scientific | 2026 |
| THE London Landscaper Ltd | Administrative & support | 2010 |
| THE MDJ Training Academy Ltd | Other services | 2020 |
| THE Mediation Station Limited | Other services | 2012 |
| THE Merchant Public House Limited | Hospitality | 2026 |
| THE Moneta Partnership Ltd | Professional & scientific | 2004 |
| THE Nails Boutique Hornchurch Branch Limited | Other services | 2014 |
| THE Naked Face, In-Camera Ltd | Administrative & support | 2018 |
| THE Nokken Group Ltd | Wholesale & retail | 2022 |
| THE Noted Company Specialists Ltd | Manufacturing | 2021 |
| THE O.S East Coast Limited | Extraterritorial | 2017 |
| THE Official Black CAB Company Ltd | Extraterritorial | 2025 |
| THE Other Partnership Ltd | Wholesale & retail | 2022 |