| Thames Electrical Contractors Ltd | Construction | 2022 |
| Thames Removals and Storage Limited | Transport & logistics | 2025 |
| Thames Skills Academy Limited | Other services | 2016 |
| Thames Travel UK Limited | Transport & logistics | 2008 |
| THAMES21 Limited | Water & waste | 2003 |
| Thamesgate Car Wash Ltd | Other services | 2019 |
| Thamesgate Estates Ltd | Real estate | 2011 |
| Thameside Controls Limited | Construction | 2024 |
| Thameside Mortgages Ltd | Financial services | 2018 |
| Thamesmere (Thamesmead) Management Company Limited | Households | 2001 |
| Thamesview Property Development Ltd | Construction | 2018 |
| Thanasias Builder Ltd | Construction | 2023 |
| Thandi Homes Limited | Real estate | 2024 |
| Thandi Property Developments Ltd | Wholesale & retail | 2010 |
| Thanet Turf Ltd | Construction | 2021 |
| That Chunky Yellow Mouse Limited | Extraterritorial | 2024 |
| THE 'a' Stars Childcare Ltd | Health & social care | 2026 |
| THE AD House Ltd | Professional & scientific | 2025 |
| THE Aesthetics Room PVE Ltd | Health & social care | 2026 |
| THE Air of the Dog Ltd | Hospitality | 2022 |
| THE Alpine Group (England) Limited | Financial services | 2025 |
| THE Altar Edit Ltd | Wholesale & retail | 2026 |
| THE Angel Celebrant Ltd | Other services | 2025 |
| THE Artist Surfaces Property Company Ltd | Real estate | 2020 |
| THE Autism Whisperer Limited | Education | 2022 |
| THE BA Mentor Ltd | Professional & scientific | 2026 |
| THE Bear Inn (Kent) Ltd | Other services | 2019 |
| THE BEE Kind Project Ltd | Health & social care | 2025 |
| THE Big MOW Ltd | Administrative & support | 2022 |
| THE Black BAG Company Ltd | Construction | 2019 |
| THE Bookkeeper Recruitment Company Ltd | Administrative & support | 2024 |
| THE Botanical Beverage Co. Limited | Manufacturing | 2024 |
| THE Bottle Factory Limited | Manufacturing | 2010 |
| THE Bougainvillea Beauty Ltd | Wholesale & retail | 2021 |
| THE Brand Bucket Company Limited | Professional & scientific | 2008 |
| THE Bridging Group Limited | Administrative & support | 2018 |
| THE Bright Star Child Care and After School Club Limited | Health & social care | 2025 |
| THE Candle Store Ltd | Wholesale & retail | 2025 |
| THE Cat's Pyjamas Cattery Ltd | Administrative & support | 2004 |
| THE Chandelier Cleaning Company Ltd | Administrative & support | 2020 |
| THE Change Leaders (COP) Limited | Other services | 2014 |
| THE City HMO Ltd | Real estate | 2016 |
| THE Clarendon Gravesend Limited | Real estate | 2005 |
| THE Cloth Merchant Limited | Wholesale & retail | 2025 |
| THE Cloudy Marshmellow Company Limited | Manufacturing | 2018 |
| THE Collectives Events Ltd | Administrative & support | 2026 |
| THE Controller People Ltd | Manufacturing | 2018 |
| THE Copper Kettle IOW Ltd | Hospitality | 2025 |
| THE Craft Dispenser Ltd | Arts & recreation | 2024 |
| THE Dance Zone Limited | Extraterritorial | 2026 |
| THE Deal Sellers Ltd | Wholesale & retail | 2022 |
| THE Direct Marketing House Limited | Professional & scientific | 2004 |
| THE Doorshop Ltd. | Wholesale & retail | 1997 |
| THE Drinks Bureau Ltd | Manufacturing | 2023 |
| THE Duke of Wellington PUB Company Limited | Hospitality | 2002 |
| THE Dupe Group Ltd | Real estate | 2022 |
| THE Dyer Group Ltd | Professional & scientific | 2025 |
| THE Edibles Group Ltd | Manufacturing | 2026 |
| THE Eggfree Cakebox Blackburn Limited | Manufacturing | 2017 |
| THE Empowerment Christian Center | Other services | 2004 |
| THE Entertainment Shed Ltd | Professional & scientific | 2020 |
| THE Entrepreneur Plan Company Ltd | Administrative & support | 2016 |
| THE EWA Experience Ltd | Other services | 2026 |
| THE Family Ness Company Limited | Information & communication | 2019 |
| THE Fawrient Express Ltd | Hospitality | 2024 |
| THE Firecracker Five Limited | Wholesale & retail | 2025 |
| THE Flower POT Florist Ltd | Administrative & support | 2017 |
| THE Funemployed Agency Ltd | Wholesale & retail | 2018 |
| THE Funemployed Ltd | Wholesale & retail | 2018 |
| THE Glow Lounge Kent Limited | Other services | 2025 |
| THE Gravesend Hotel Company Limited | Real estate | 2012 |
| THE Gravesend Model Marine and Engineering Society | Arts & recreation | 1996 |
| THE Graylings Management Company Limited | Households | 2000 |
| THE Great Food Factory Ltd | Wholesale & retail | 2020 |
| THE Green House(Ka) Ltd | Wholesale & retail | 2021 |
| THE Grub Hub Kent Ltd | Hospitality | 2026 |
| THE Hamptons RTM Limited | Households | 2016 |
| THE Hardie Group Limited | Financial services | 2023 |
| THE Harmer Street Clinic Limited | Health & social care | 2014 |
| THE Haven Management (Sandgate) Company Limited | Households | 1996 |
| THE Hill Property Holding Company Ltd | Real estate | 2020 |
| THE Hollies Care Home Limited | Health & social care | 2026 |
| THE House of Adam Events Ltd | Hospitality | 2025 |
| THE House of Refuge Limited | Health & social care | 2018 |
| THE Housekeeping and Cleaning Co Ltd | Administrative & support | 2025 |
| THE INOV8 Group Ltd | Financial services | 2005 |
| THE Italian MOP Ltd | Administrative & support | 2025 |
| THE Jolly Drayman Ltd | Hospitality | 2015 |
| THE Kids' Cookery Co. CIC | Hospitality | 2026 |
| THE Knowledge Brokers Ltd | Professional & scientific | 2018 |
| THE Kuflink Foundation | Health & social care | 2008 |
| THE Laser & Aesthetic Clinic Limited | Administrative & support | 2009 |
| THE Leather Bottle Limited | Hospitality | 2011 |
| THE Leather Bottle Tea Room Ltd | Hospitality | 2018 |
| THE Life Center Ltd | Health & social care | 2024 |
| THE Light of the World Holy Ghost Church of GOD | Other services | 2004 |
| THE Link Franchise Group Ltd | Financial services | 2024 |
| THE Little Sombrero Ltd | Hospitality | 2023 |
| THE Live Dept Limited | Extraterritorial | 2015 |
| THE London Fire Door & Carpentry Company Ltd | Construction | 2014 |