| THE Business Academy Group Limited | Administrative & support | 2021 |
| THE Business Mountain Limited | Administrative & support | 2011 |
| THE Camelot Network Limited | Information & communication | 2020 |
| THE Capture Agency Limited | Professional & scientific | 2013 |
| THE Chauffeur Division Limited | Transport & logistics | 2015 |
| THE Choice Cricket Centre Limited | Arts & recreation | 2000 |
| THE Clean Bros. Ltd | Administrative & support | 2022 |
| THE Coaching GUY Ltd | Professional & scientific | 2023 |
| THE Comic Clinic Ltd | Wholesale & retail | 2019 |
| THE Commercial Sherpa Ltd | Professional & scientific | 2025 |
| THE Company of General Commerce Limited | Professional & scientific | 2009 |
| THE Compasses (Abbots Langley) Limited | Administrative & support | 2006 |
| THE Connected Care Tech Ltd | Information & communication | 2023 |
| THE Contemporary Co. Art Ltd | Wholesale & retail | 2024 |
| THE Contracts Room Limited | Professional & scientific | 2018 |
| THE Cotswold HAT Club Ltd | Wholesale & retail | 2018 |
| THE Counselling Training Centre Ltd | Real estate | 2017 |
| THE Country Kitchen Ltd. | Wholesale & retail | 2006 |
| THE Cr&C Organisation Limited | Professional & scientific | 2005 |
| THE Creative Place Limited | Manufacturing | 1992 |
| THE Cyser Company Beverages Ltd | Manufacturing | 2023 |
| THE Daily Dosa Ltd | Hospitality | 2025 |
| THE Dame Hilary Cropper Charitable Foundation Limited | Financial services | 2004 |
| THE Decision Tree Limited | Other services | 2007 |
| THE Deli ST Albans Limited | Wholesale & retail | 2021 |
| THE Dell (ST Albans) Limited | Households | 1965 |
| THE Doodler Ltd | Professional & scientific | 2022 |
| THE Drake Memorial Park Limited | Other services | 1942 |
| THE Dressing Room Retail Limited | Wholesale & retail | 2004 |
| THE Electric Drawing Board Limited | Information & communication | 1997 |
| THE Endless Bookcase Ltd | Information & communication | 2013 |
| THE Evidence and Evaluation Club Ltd | Professional & scientific | 2019 |
| THE Fells Retreat Ltd | Real estate | 2025 |
| THE Ferrers Partnership Limited | Professional & scientific | 2025 |
| THE Figment Group Limited | Information & communication | 1993 |
| THE Five Points Project Ltd | Wholesale & retail | 2022 |
| THE Flute Store Ltd | Wholesale & retail | 2025 |
| THE Flying Physios Ltd. | Other services | 2012 |
| THE Furniture Shacks Ltd | Wholesale & retail | 2022 |
| THE Garsin Property Group Limited | Real estate | 2022 |
| THE Gentle Cycle Ltd | Other services | 2026 |
| THE George Plumbing 24H Ltd | Construction | 2025 |
| THE Glass Warehouse Limited | Manufacturing | 2020 |
| THE Glaze Bakery Ltd | Hospitality | 2024 |
| THE Go to Broker Limited | Financial services | 2018 |
| THE Golden Tooth Limited | Hospitality | 2026 |
| THE Goodness Brewing Company Ltd | Manufacturing | 2017 |
| THE Goodrum Company Ltd | Information & communication | 2015 |
| THE Green House ST Albans CIC | Wholesale & retail | 2023 |
| THE Harpenden Directory Limited | Information & communication | 2006 |
| THE Harrison Brothers Limited | Professional & scientific | 2017 |
| THE HIDEAWAY8 Ltd | Real estate | 2021 |
| THE Hideout Kafe Limited | Hospitality | 2018 |
| THE Highland COW Ranch Limited | Agriculture & fishing | 2024 |
| THE History Boys Battlefield Tours Ltd | Administrative & support | 2024 |
| THE Hub ST Albans Limited | Hospitality | 2021 |
| THE Humming Labs Ltd | Professional & scientific | 2024 |
| THE Hunton and Langley Group Ltd | Construction | 2019 |
| THE Industry Skin Ltd | Information & communication | 2026 |
| THE International Organ Festival Society Limited | Arts & recreation | 1991 |
| THE Investors Media Company Ltd | Information & communication | 2010 |
| THE Jobbing Plumber Ltd | Construction | 2026 |
| THE Journalest Ltd | Wholesale & retail | 2025 |
| THE Joyful Doctor Limited | Other services | 2017 |
| THE LAB Conventions Limited | Administrative & support | 2026 |
| THE Landscape Centre Limited | Wholesale & retail | 2000 |
| THE Leadership in Business Group Limited | Information & communication | 2017 |
| THE Lilac Wellness Retreat Limited | Health & social care | 2025 |
| THE Lingerie SET Limited | Wholesale & retail | 2022 |
| THE Little Puffin Ltd | Professional & scientific | 2010 |
| THE London OT Ltd | Health & social care | 2022 |
| THE Love Anna Company Ltd | Arts & recreation | 2011 |
| THE Luxuria Group Limited | Administrative & support | 2024 |
| THE Mallard Public House Limited | Hospitality | 2023 |
| THE Maltings Residents Management Company Ltd | Households | 1987 |
| THE Maltings Theatre Limited | Extraterritorial | 2020 |
| THE Marvellous Sleepover Company Ltd | Arts & recreation | 2023 |
| THE Mcpherson Partnership Limited | Real estate | 2008 |
| THE Mega Agency for Content Ltd | Information & communication | 2016 |
| THE Mets Trading Company Limited | Construction | 2017 |
| THE Mews Culver Road Management Company Limited | Real estate | 2010 |
| THE Modern Mini Ltd | Wholesale & retail | 2018 |
| THE Monomoy Company Ltd | Professional & scientific | 2013 |
| THE Mortgage Store (T.M.S) Limited | Financial services | 2003 |
| THE Music Webstore Ltd | Wholesale & retail | 2025 |
| THE Narrators Lens CIC | Professional & scientific | 2022 |
| THE National Car Care Club Limited | | 1988 |
| THE New Athens Limited | Information & communication | 2017 |
| THE New Homes Consultancy Limited | Professional & scientific | 2017 |
| THE Next Layer Ltd | Professional & scientific | 2025 |
| THE Nodes Global Limited | Information & communication | 2026 |
| THE Nurseries Sarum Road Limited | Real estate | 2010 |
| THE Odyssey Cinema ST Albans Limited | Arts & recreation | 2009 |
| THE Official Formula Ltd | Arts & recreation | 2026 |
| THE Old Cottage Limited | Hospitality | 2017 |
| THE Old Substation Property Management Company Limited | Real estate | 2013 |
| THE Oliver and Hare Limited | Hospitality | 2017 |
| THE One Venture Capital Partners I LP | | 2022 |
| THE Organic Junction Limited | Hospitality | 2019 |
| THE Other Tour TOO Limited | Arts & recreation | 2011 |