| THE Hair Fairy Limited | Other services | 2018 |
| THE Home Surveyor (South East) Ltd | Professional & scientific | 2021 |
| THE Hoops Inn (Holdings) Limited | Financial services | 2025 |
| THE Hoops Inn Limited | Administrative & support | 2009 |
| THE House That Print Built Ltd | Real estate | 2021 |
| THE Hub Loughton Limited | Hospitality | 2018 |
| THE Hungry Gandhi Restaurant Limited | Hospitality | 2025 |
| THE Intimacy Coach UK Ltd | Education | 2022 |
| THE Italian Supermarket Ltd | Wholesale & retail | 2025 |
| THE Jazz Core Ltd | Arts & recreation | 2022 |
| THE Lake House Studio Ltd | Hospitality | 2024 |
| THE Lambs Health Ltd | Health & social care | 2018 |
| THE Legal Agency Ltd | Administrative & support | 2025 |
| THE Lift Consultancy East Ltd | Manufacturing | 2011 |
| THE Links Land Limited | Real estate | 2005 |
| THE Little Flower Shop (London) Ltd | Wholesale & retail | 2021 |
| THE Little Play HUT Ltd | Hospitality | 2025 |
| THE LOG Cabin Limited | Wholesale & retail | 2003 |
| THE London Flower House Ltd | Wholesale & retail | 2025 |
| THE Lovely Edit Boutique Ltd | Wholesale & retail | 2018 |
| THE Lowtaxgroup Limited | Professional & scientific | 2013 |
| THE Luxury Flower Company Ltd | Wholesale & retail | 2025 |
| THE Luxury Glamping Company Ltd | Hospitality | 2015 |
| THE Manor House (Property & Land) Limited | Construction | 2007 |
| THE Meat Technician Ltd | Wholesale & retail | 2023 |
| THE Mint 2 Mint Group Limited | Other services | 2011 |
| THE Pbfs Group Limited | Financial services | 2024 |
| THE Photographic Lounge Limited | Professional & scientific | 2011 |
| THE Pink Painter Ltd | Construction | 2019 |
| THE Pink Teapot Limited | Extraterritorial | 2007 |
| THE Plastic Shop Limited | Construction | 2003 |
| THE Pond Specialist Limited | Construction | 2010 |
| THE Project Control Partnership Limited | Professional & scientific | 1993 |
| THE Properties Designs and Renovations Company Limited | Construction | 2010 |
| THE Property Specialists Ltd | Real estate | 2007 |
| THE PUB (Gunmaker Arms) Limited | Hospitality | 2021 |
| THE Ramsden Import Company Ltd | Wholesale & retail | 2023 |
| THE Red Lion Billericay Ltd | Hospitality | 2024 |
| THE Registered Dietitians Ltd | Health & social care | 2024 |
| THE Resin Floor & Wall Co. Ltd | Construction | 2018 |
| THE Resin Floor Co. (UK) Limited | Construction | 2012 |
| THE Rooftop Ministries | Education | 2008 |
| THE School Fees Company Limited | Financial services | 2025 |
| THE Silk Lounge Limited | Other services | 2014 |
| THE Sober Experience Limited | Administrative & support | 2024 |
| THE Sovereign Club Limited | Wholesale & retail | 2023 |
| THE Stewart Family LLP | | 2020 |
| THE Summerdale Farm Enterprise Community Interest Company | Health & social care | 2015 |
| THE TAG Group Limited | Manufacturing | 1999 |
| THE Treadstone Group (Europe) Ltd | Wholesale & retail | 2026 |
| THE Tutor Suite Ltd | Education | 2024 |
| THE UK Fire Curtain Company Limited | Construction | 2024 |
| THE Valley Rides Ltd | Education | 2026 |
| THE Vintage Pattern Shop Ltd | Wholesale & retail | 2016 |
| THE Walter Group Limited | Health & social care | 2018 |
| THE Waters Project Ltd | Construction | 2020 |
| THE Wellspring Foundation | Education | 2015 |
| THE Yoga Club Limited | Arts & recreation | 2024 |
| THE Zone Partners Limited | Administrative & support | 2018 |
| Thermal Heating Essex Limited | Construction | 2023 |
| Think Green Constructions Ltd | Construction | 2014 |
| Think Green Energy Limited | Construction | 2011 |
| Think Green Homes Ltd | Extraterritorial | 2015 |
| Think Green Investment Services Limited | Administrative & support | 2013 |
| Think Green Land Ltd | Construction | 2017 |
| Think Green Recreation Limited | Construction | 2016 |
| Think-In-Ovation Limited | Professional & scientific | 2005 |
| Thinking Edge Ltd | Professional & scientific | 2015 |
| Third Dimension Architectural Design Limited | Professional & scientific | 2007 |
| Thomas & Holland Limited | Wholesale & retail | 2009 |
| Thorndon Windows Limited | Construction | 2014 |
| Thorogood Electrical Ltd | Construction | 2026 |
| Threadixfur Ltd | Wholesale & retail | 2025 |
| Threedotsperinch Limited | Information & communication | 2006 |
| Thresher Consultancy Limited | Professional & scientific | 2010 |
| Thrive Child and Family Psychology Limited | Education | 2024 |
| Thunder Sparks Ltd | Construction | 2019 |
| TIB Retail Ltd | Wholesale & retail | 2024 |
| Tifftib Limited | Professional & scientific | 2013 |
| TIG in the Garden Ltd | Professional & scientific | 2021 |
| Tigas Catering Limited | Hospitality | 2024 |
| Tiger Contracts Limited | Wholesale & retail | 2025 |
| Tiger Self Storage Ltd | Real estate | 2018 |
| Tigerlilys Wraparound Care Ltd | Health & social care | 2026 |
| TIKTECH21 Ltd | Manufacturing | 2023 |
| Tilley Home Developments Limited | Real estate | 2018 |
| Tills Motors Ltd | Wholesale & retail | 2021 |
| Tilly Shoes Limited | Wholesale & retail | 2005 |
| Timbertherm Ltd | Extraterritorial | 2014 |
| Timbertherm Windows.Com Ltd | Professional & scientific | 2013 |
| Time - 2 - Shine Limited | Other services | 2005 |
| Timeless Blinds Ltd | Construction | 2021 |
| Timoha Contractors Ltd | Construction | 2015 |
| Tinto Property Services Limited | Other services | 2007 |
| TIP Top Plumbing & Property Maintenance Ltd | Construction | 2024 |
| Titan Structures and Refurbishments Limited | Construction | 2025 |
| TJL Security Integrators Limited | Administrative & support | 2015 |
| TK Copy & Creative Strategy Limited | Administrative & support | 2026 |
| TKD Solutions Ltd | Professional & scientific | 2024 |
| TKL Carpentry Limited | Manufacturing | 2025 |