| Laguna Construction Group Ltd | Construction | 2022 |
| Laguna Court Limited | Households | 1995 |
| LAH Management Ltd | Wholesale & retail | 2016 |
| Laiste Limited | Health & social care | 2014 |
| LAJ Brokerage Services Ltd | Other services | 2025 |
| Lake View Village Hall | Arts & recreation | 2012 |
| Lakes Medicals Limited | Real estate | 2011 |
| Lakesyde Care Limited | Health & social care | 2017 |
| Lall Precision Engineering Ltd | Manufacturing | 1990 |
| Lally Group Ltd | Manufacturing | 2021 |
| LAM Accountancy Limited | Professional & scientific | 2022 |
| LAM Estates Limited | Real estate | 2019 |
| Lambert Projects Limited | Construction | 2025 |
| Lambert Safety Services Ltd | Construction | 2018 |
| Lamberts Bedford Ltd | Wholesale & retail | 2016 |
| Lambo Property Services Limited | Real estate | 2025 |
| Lambo Transport Limited | Transport & logistics | 2025 |
| Lambourn MOT & Service Centre Limited | Other services | 1994 |
| LAN Development Studios Ltd | Information & communication | 2026 |
| Lana LOU Tattoo Ltd | Arts & recreation | 2025 |
| Lanapharm Ltd | Health & social care | 2024 |
| Lancewell Property Group Limited | Hospitality | 2025 |
| Land of Rugs Ltd | Wholesale & retail | 2001 |
| Landelivery Ltd | Transport & logistics | 2025 |
| Landgor LLP | | 2025 |
| Landhurst Roofing Services Limited | Construction | 1990 |
| Landmark Mosaics Ltd | Wholesale & retail | 2005 |
| Landstrade Ltd | Wholesale & retail | 2021 |
| Lane & Holmes LLP | | 2024 |
| Lane 4 Limited | Information & communication | 2025 |
| Lanes Building Contractors Limited | Construction | 2007 |
| Langlands Housing Limited | Real estate | 2018 |
| Langley Jones Limited | Hospitality | 2010 |
| Langlois Limited | Professional & scientific | 2011 |
| Langprofile Ltd | Information & communication | 2026 |
| Langridge Properties Ltd | Real estate | 2017 |
| Language Consulting Ltd | Professional & scientific | 2022 |
| Language Immersion Bedford Limited | Education | 2018 |
| Lani Consultancy Ltd | Health & social care | 2023 |
| Lanner Falcon Limited | Transport & logistics | 2021 |
| Lanora Legal Services Limited | Professional & scientific | 2025 |
| Lantern Civil & Criminal Health Consulting Ltd | Health & social care | 2018 |
| Lanthony Court Management Company Limited | Households | 1986 |
| Lanz Executive Coaching Limited | Professional & scientific | 2006 |
| Laplace's Daemon Limited | Information & communication | 2017 |
| Lara Cornell Projects Limited | Professional & scientific | 2025 |
| Larinof Media Ltd | Professional & scientific | 2016 |
| Larisa Mocanu Ltd | Construction | 2022 |
| Larkin Homes Limited | Construction | 2008 |
| Larking's List Limited | Administrative & support | 2013 |
| Larko Ltd | Wholesale & retail | 2023 |
| LAS Condes Services Ltd | Administrative & support | 2020 |
| LAS Discoveries Ltd | Financial services | 2014 |
| Laser Lite Clinic Limited | Other services | 2019 |
| Laser Skin Spa Limited | Other services | 2001 |
| Laser Tech POD Ltd | Manufacturing | 2024 |
| Lash Doll Beauty Ltd | Other services | 2025 |
| Lashed by LIV Ltd | Other services | 2021 |
| Lashes From TIA Limited | Other services | 2024 |
| Lashup by Deea Ltd | Other services | 2025 |
| Laspruce Properties Ltd | Real estate | 2024 |
| Lasso Projects Limited | Professional & scientific | 2023 |
| Last Orders Bar & Events Ltd | Hospitality | 2025 |
| Latchford Miller Ltd | Health & social care | 2025 |
| Latoo Aesthetics Ltd | Health & social care | 2016 |
| Latrium Carpet & Furniture Ltd | Wholesale & retail | 2021 |
| Laucius Transport Ltd | Transport & logistics | 2025 |
| Laughterandlife Ltd | Other services | 2014 |
| Laura & KIN Ltd | Real estate | 2020 |
| Laura Hall Counselling Ltd | Health & social care | 2022 |
| Laura Jones Properties Ltd | Real estate | 2016 |
| Laurel Leads Limited | Real estate | 2022 |
| Lauvern Care Ltd | Health & social care | 2013 |
| Lavanya & Brother Limited | Construction | 2016 |
| Lavanya & Familia Ltd | Construction | 2023 |
| Lavender Group Ltd | Professional & scientific | 2018 |
| Lavin Software Creations Ltd | Information & communication | 2025 |
| Lavish Kitchen Limited | Hospitality | 2023 |
| Law Maximum Ltd | Professional & scientific | 2021 |
| Laws Estate Management Company Limited | Households | 2024 |
| Lawson Properties (Northants) Ltd | Real estate | 2021 |
| Laxford Limited | Real estate | 2006 |
| Laybury Construction Limited | Construction | 2015 |
| Laycie Services Limited | Water & waste | 2022 |
| Laycroft Park Ltd | Wholesale & retail | 2017 |
| Layer 8 Ltd | Other services | 2013 |
| Layton Beauty Ltd | Other services | 2025 |
| LB Aggregates Ltd | Water & waste | 2021 |
| LB09 Group Limited | Education | 2025 |
| LBA Ventures Ltd | Real estate | 2024 |
| LBC Consult Limited | Professional & scientific | 2022 |
| LCA Clean Ltd | Extraterritorial | 2024 |
| LCB Leisure Ltd | Hospitality | 2011 |
| LCB Property Services Ltd | Real estate | 2023 |
| Lch-Ps Ltd. | Arts & recreation | 2013 |
| LCL Property Holding Ltd | Real estate | 2024 |
| LCM Engineering & Consultancy Limited | Manufacturing | 2006 |
| LCM Investment Company Limited | Real estate | 2016 |
| LCM Manufacturing Limited | Manufacturing | 2015 |
| LCN E-Commerce Limited | Administrative & support | 2025 |