| Legacy Property Collective Ltd | Real estate | 2024 |
| Legalise Tomatoes Ltd | Wholesale & retail | 2018 |
| Legendary Larp Ltd | Arts & recreation | 2025 |
| Leisure & Lifestyle Insurance Services Limited | Professional & scientific | 2007 |
| Leisure Ride Ltd | Construction | 2006 |
| Leisurelec Ltd | Extraterritorial | 2010 |
| LEVEL28 Limited | Wholesale & retail | 2017 |
| Lewis Accountancy Ltd | Professional & scientific | 2024 |
| Lewis Critchley Architects Limited | Professional & scientific | 2019 |
| Lexclearing Probate Limited | Professional & scientific | 2019 |
| Lexcosystems IP Limited | Extraterritorial | 2017 |
| Lexcosystems Limited | Information & communication | 2017 |
| LFW Aesthetics Ltd | Health & social care | 2023 |
| Lifemark Ltd | Extraterritorial | 2022 |
| Lifetime Money Ltd | Financial services | 2024 |
| Lift Healthcare Investments Limited | Professional & scientific | 2004 |
| Line Dancing With GAV Ltd | Arts & recreation | 2026 |
| Linear Automation Ltd. | Professional & scientific | 2014 |
| Linear AV Limited | Administrative & support | 2014 |
| Linzwi Ltd | Public administration | 2025 |
| Lippitt Properties Ltd | Real estate | 2023 |
| Lisa Holliday Studio Ltd | Other services | 2023 |
| LIT Electrical Services (South West) Ltd | Construction | 2026 |
| Litacommerce Ltd | Wholesale & retail | 2025 |
| Little and Perfect Convenience Store Ltd | Wholesale & retail | 2011 |
| Little Fish Labs Limited | Professional & scientific | 2020 |
| Live Life Adventure Limited | Education | 2018 |
| LK9 Enrichment Ltd | Other services | 2025 |
| LKB Bookkeeping Services Ltd | Professional & scientific | 2022 |
| LLH Consulting Group Limited | Professional & scientific | 2026 |
| LMJ Services Limited | Health & social care | 2017 |
| Location Drones Limited | Information & communication | 2020 |
| Locomotion (Special Projects) Ltd | Information & communication | 2020 |
| Locomotion Entertainment Ltd | Information & communication | 2004 |
| Lolpros Ltd | Arts & recreation | 2023 |
| Longmarsh Developments Ltd | Construction | 2020 |
| Looker Digital Limited | Information & communication | 2023 |
| Loopy Hair & Beauty Ltd | Wholesale & retail | 2010 |
| Lottsco Ltd | Real estate | 2025 |
| Love Electrical Ltd | Construction | 2022 |
| Love Lucy Online Coaching Ltd | Other services | 2021 |
| Lowen Days Limited | Administrative & support | 2021 |
| LOX Management Consultancy Limited | Professional & scientific | 2015 |
| LOZ Pubs Ltd | Hospitality | 2017 |
| Lspw Properties Limited | Real estate | 2025 |
| LT Accounting Business Services Limited | Professional & scientific | 2022 |
| LT Cards Ltd | Wholesale & retail | 2018 |
| Lupocalabria Ltd | Hospitality | 2019 |
| Luttons Property Ltd | Construction | 2018 |
| Luxury Home Spa Limited | Administrative & support | 2017 |
| Luxworth Ltd | Wholesale & retail | 2025 |
| Lykke and Hygge Ltd | Other services | 2019 |
| M FOX Ltd | Wholesale & retail | 2011 |
| M G Wynn Limited | Construction | 2017 |
| M H Procurement Ltd | Professional & scientific | 2019 |
| M J Jones Sweets Ltd | Hospitality | 2013 |
| M&Y Tewkesbury Ltd | Agriculture & fishing | 2019 |
| Macari Corp Limited | Manufacturing | 2025 |
| Macs ET AL Limited | Professional & scientific | 2011 |
| Magic Marketplace Ltd | Wholesale & retail | 2022 |
| Magna DRY UK Ltd | Wholesale & retail | 2021 |
| Maguires of Cheltenham Ltd | Transport & logistics | 2020 |
| Maguires Transport Ltd | Transport & logistics | 2020 |
| Maisie's Courtyard Cafe Ltd | Hospitality | 2021 |
| Majr Services Limited | Construction | 2017 |
| Malt House Emporium Limited | Wholesale & retail | 2014 |
| Malvern Salvia Collection Ltd | Wholesale & retail | 2025 |
| Manor Farm Barns (Great Washbourne) Limited | Households | 1994 |
| Marden Medical Limited | Health & social care | 2024 |
| Marigloss Ltd | Wholesale & retail | 2026 |
| Mark E Stanton Limited | Professional & scientific | 2012 |
| MARSAR17 Ltd | Transport & logistics | 2019 |
| Martin Green Traditional Decorating Limited | Construction | 2012 |
| Mary P'S BCT Ltd | Education | 2021 |
| Mary P'S Ltd | Education | 2010 |
| Mary P'S Training and Education Ltd | Education | 2022 |
| Mary PS Property Limited | Real estate | 2016 |
| Mason Firearms Limited | Wholesale & retail | 2025 |
| Mason-Brown Financial Planning Limited | Financial services | 2024 |
| Massawe Adventures Ltd | Administrative & support | 2022 |
| Matriks Limited | Information & communication | 2013 |
| Matt Gardiner Distributions Limited | Wholesale & retail | 2011 |
| Matt Grimshaw Carpentry Ltd | Construction | 2014 |
| Mayfield Garden Associates Ltd | Administrative & support | 1998 |
| Maystone Watches Limited | Wholesale & retail | 2026 |
| Mcadam Equine Sports Medicine Ltd | Professional & scientific | 2023 |
| Mccarthy Property Holdings Ltd | Real estate | 2023 |
| Me@Jonathanhall Ltd | Information & communication | 2025 |
| Mechtech Building Services Ltd | Professional & scientific | 2025 |
| Medical Graphics Holdings Limited | Financial services | 2021 |
| Medical Graphics UK Ltd | Wholesale & retail | 2007 |
| Medisil Limited | Extraterritorial | 1988 |
| Meicaman Ltd | Professional & scientific | 2025 |
| Meliha Property Ltd | Real estate | 2025 |
| Melville Management Limited | Professional & scientific | 2014 |
| Meridian Learning Ltd | Education | 2026 |
| Merlin Topco Ltd | Real estate | 2021 |
| MET Property (Gloucestershire) Ltd | Construction | 2017 |
| Mgrlaw Limited | Professional & scientific | 2024 |
| Mgtd Holdings Limited | Financial services | 2023 |