| THE Kirsty Farrow Dance Academy LLP | | 2026 |
| THE Kitchen Collective Limited | Construction | 2025 |
| THE Kitchen Guys Ltd | Construction | 2025 |
| THE Koromas' Real Estate Investment Holding Group Limited | Real estate | 2019 |
| THE Lacey’S Shop Ltd | Manufacturing | 2021 |
| THE Lady Powerhouse CIC | Education | 2023 |
| THE Langton Residents Association Limited | Households | 2003 |
| THE Laser Clinic Limited | Health & social care | 2008 |
| THE Lazy Frog Swindon Ltd | Wholesale & retail | 2025 |
| THE Leadership Black Belt Academy LLP | | 2018 |
| THE Leadership Growth Company Limited | Professional & scientific | 2009 |
| THE Legacy Pet Media Company Ltd | Professional & scientific | 2026 |
| THE Liberti Group Limited | Financial services | 2011 |
| THE Limes Property Services Ltd | Real estate | 2026 |
| THE Lion Cleaners Ltd | Administrative & support | 2025 |
| THE Little Dance Academy LLP | | 2019 |
| THE Little Factory Limited | Wholesale & retail | 2007 |
| THE Little GEM Limited | Hospitality | 2021 |
| THE Little Loft Ltd | Wholesale & retail | 2023 |
| THE Little Pineapple Parties Ltd | Administrative & support | 2023 |
| THE Little Pottery Painting Co. Ltd | Arts & recreation | 2023 |
| THE Live Well Food Company Ltd. | Wholesale & retail | 2013 |
| THE Local Marketing Business Ltd | Professional & scientific | 2009 |
| THE Loft Swindon Ltd | Hospitality | 2026 |
| THE London Cargo Limited | Transport & logistics | 2024 |
| THE London Dance Company Limited | Arts & recreation | 2016 |
| THE London Medical Group Limited | Health & social care | 2026 |
| THE London Warehouse Limited | Wholesale & retail | 2022 |
| THE Longevity Games CIC | Arts & recreation | 2025 |
| THE Luxe Collection Events Ltd | Administrative & support | 2019 |
| THE Luxury Photobooth Company Ltd | Arts & recreation | 2025 |
| THE Mabbs Academy of Beauty Ltd | Other services | 2023 |
| THE Magic Laser Ltd | Wholesale & retail | 2025 |
| THE Maids Cleaning Service Ltd | Administrative & support | 2022 |
| THE Maids Laundry Services Ltd | Other services | 2024 |
| THE Malt Miller Limited | Wholesale & retail | 2011 |
| THE Management Company for 14 Milton Road Limited | Hospitality | 2004 |
| THE Marketing Centre Limited | Professional & scientific | 2010 |
| THE Marketing Connection Group Ltd | Professional & scientific | 2020 |
| THE Medics Specialists UK Limited | Financial services | 2018 |
| THE Mews (Watchfield) Management Company Ltd. | Households | 1991 |
| THE Mews Cricklade Street Ltd | Households | 2002 |
| THE Mind Gardener Ltd | Professional & scientific | 2019 |
| THE Mindi Project Limited | Real estate | 2016 |
| THE Missing Part Limited | Information & communication | 2001 |
| THE MJS PUB Group Limited | Hospitality | 2018 |
| THE Model Steam Road Vehicle Society Limited | Other services | 1999 |
| THE Mojo Project Limited | Administrative & support | 2013 |
| THE Mortgage Works (UK) PLC | Financial services | 1988 |
| THE National Trust Retirement and Death Benefits Scheme Corporate Trustee Limited | Other services | 2018 |
| THE New Mechanics' Institution Preservation Trust Limited | Arts & recreation | 1995 |
| THE New Window Company Limited | Construction | 2007 |
| THE Noisy Drinks Company (South West) Limited | Hospitality | 2002 |
| THE Norman Trust | Professional & scientific | 2019 |
| THE Nurseries Management (NO 1) Limited | Administrative & support | 1989 |
| THE Nurseries Management Company Limited | Households | 2005 |
| THE Nursery of Narnia Community Interest Company | Other services | 2018 |
| THE Nurture Project TNP CIC | Other services | 2024 |
| THE Oaktree Building Company Limited | Construction | 2004 |
| THE Old Bakehouse Group Limited | Agriculture & fishing | 2025 |
| THE Old Bakery (Bakery) Highworth Limited | Manufacturing | 2019 |
| THE Old Bakery (Tea Rooms) Highworth Limited | Hospitality | 2019 |
| THE Old Bakery Highworth Limited | Hospitality | 2017 |
| THE Old Bear Inn Ltd | Hospitality | 2019 |
| THE Old Bell Malmesbury Limited | Real estate | 2020 |
| THE Old Coachyard Lambourn Property Management Company Limited | Households | 1989 |
| THE Online Edge Group Ltd | Professional & scientific | 2026 |
| THE Open Door Centre (Swindon & District) Limited | Health & social care | 2004 |
| THE Optimists' Club Limited | Education | 2014 |
| THE Orchard (South Marston) Management Limited | Households | 2014 |
| THE Orchard Residents Management Company Limited | Real estate | 2006 |
| THE Orchards (Thames Avenue) Management Company Limited | Water & waste | 1999 |
| THE Outdoors Project (Franchising) Limited | Administrative & support | 2020 |
| THE Outdoors Project Ltd | Arts & recreation | 2013 |
| THE Oxford Chef Shop Limited | Wholesale & retail | 2011 |
| THE Paddocks (Blunsdon) Management Company Limited | Households | 2020 |
| THE Pamper Lounge Highworth Ltd | Other services | 2018 |
| THE Paper Sector Climate Change Management Co. Limited | Other services | 1993 |
| THE Park Academies Trust | Education | 2011 |
| THE Parks Volunteer Resource and Retail Outlet | Wholesale & retail | 1998 |
| THE Pathways Foundation Community Interest Company | Education | 2026 |
| THE Performance Window Group Limited | Manufacturing | 2006 |
| THE Phlebotomist Ltd | Health & social care | 2023 |
| THE Phone Doctor(Swindon) Ltd | Wholesale & retail | 2025 |
| THE Platform Project CIC | Education | 2015 |
| THE Play DEN Nursery Ltd | Education | 2016 |
| THE Play House (Swindon) Ltd | Health & social care | 2024 |
| THE Plug and Chain Bathroom Company Ltd | Construction | 2018 |
| THE Plumb Boss Ltd | Construction | 2025 |
| THE Plywood Kitchen Company Ltd | Manufacturing | 2016 |
| THE Point-To-Point Authority Limited | Other services | 2008 |
| THE Postnatal Support Hub Ltd | Public administration | 2026 |
| THE Powerhouse Project Community CIC | Education | 2024 |
| THE Practical Life Coach Ltd | Health & social care | 2025 |
| THE Producers Limited | Information & communication | 2014 |
| THE Professional Window Cleaner Magazine Limited | Extraterritorial | 2005 |
| THE Proffitt Partnership Limited | Professional & scientific | 2004 |
| THE Profit Guru Limited | Professional & scientific | 2014 |
| THE Project Combination Limited | Information & communication | 2013 |
| THE Property Hunt Ltd | Construction | 2018 |