| L & J Gull Fine Arts Limited | Professional & scientific | 1993 |
| L & K Flowers Ltd | Wholesale & retail | 2018 |
| L & M Property Company Limited | Real estate | 2015 |
| L B G (UK) Limited | Other services | 2014 |
| L B Installs Ltd | Professional & scientific | 2020 |
| L B Sports Management Limited | Professional & scientific | 2014 |
| L E S Transport Ltd | Transport & logistics | 2023 |
| L G I Services Limited | Transport & logistics | 2015 |
| L Morningstar Ltd | Administrative & support | 2018 |
| L&D Estate Agents Ltd | Real estate | 2023 |
| L&D Estates Limited | Real estate | 2025 |
| L&D Evergreen Health and Care Ltd | Health & social care | 2022 |
| L&D Physio Ltd | Health & social care | 2025 |
| L&Gg Services Ltd | Construction | 2022 |
| L&J Biswas Property Ltd | Real estate | 2026 |
| L&J Lifestyle Ltd | Real estate | 2024 |
| L&L Autos Limited | Wholesale & retail | 2023 |
| L&M Quays Properties Ltd | Real estate | 2023 |
| L&P Park Homes Ltd | Real estate | 2021 |
| L&V Distribution Limited | Transport & logistics | 2022 |
| L'Artista Studio Hair and Beauty Unisex Ltd | Other services | 2024 |
| L'Atelier Beauty by C Limited | Other services | 2025 |
| L'Shay Creatives Ltd | Administrative & support | 2025 |
| L.A.D Development and Project Management Ltd | Construction | 2019 |
| L.C.L & ANA Ltd | Transport & logistics | 2015 |
| L.Patience OFF the Wall Ltd | Hospitality | 2024 |
| L.Rochelle STR Ltd | Hospitality | 2023 |
| L.T.H.Electronics Limited | Manufacturing | 1967 |
| L.Wesley Recovery Ltd | Transport & logistics | 2021 |
| L1FECHOICES Ltd | Information & communication | 2017 |
| LA 4 Ace Productions Ltd | Information & communication | 2025 |
| LA Baguette Parisienne Ltd | Hospitality | 2018 |
| LA Casa DE Barber Ltd | Other services | 2021 |
| LA Dragoi Limited | Wholesale & retail | 2025 |
| LA Familia Properties Ltd | Households | 2021 |
| LA Fresa Limited | Wholesale & retail | 2015 |
| LA Hlife Nutrition Coach Ltd. | Arts & recreation | 2021 |
| LA Interiors Plumbing and Heating Ltd | Construction | 2025 |
| LA LA Cars Ltd | Wholesale & retail | 2019 |
| LA Mamaya Limited | Wholesale & retail | 2025 |
| LA Maramures Ltd | Hospitality | 2023 |
| LA Nashu Limited | Transport & logistics | 2014 |
| LA Piña Limited | Wholesale & retail | 2022 |
| LA Signature Vehicle Rentals Ltd | Administrative & support | 2022 |
| LA Spedition Ltd | Transport & logistics | 2018 |
| LA Toks Consulting Ltd | Professional & scientific | 2024 |
| Laaibah Transport Ltd | Transport & logistics | 2018 |
| Labeeda Ahmed Limited | Professional & scientific | 2024 |
| Laburnum Moon Properties Limited | Real estate | 2023 |
| Lacious Looks Ltd | Other services | 2023 |
| Lackers Ltd | Transport & logistics | 2017 |
| Lacore Limited | Construction | 2024 |
| Lacunar Group Holdings Limited | Financial services | 2017 |
| Lacunar Healthcare Projects Limited | Construction | 2015 |
| Lacunar Limited | Construction | 2011 |
| Lacus Mode Ltd | Construction | 2015 |
| Ladhar Transport Company Ltd | Transport & logistics | 2019 |
| Ladicore Group Limited | Professional & scientific | 2026 |
| Ladies Hair and Beauty Training Academy C.I.C. | Education | 2021 |
| Lady Anna 1 Beauty & Fashion Ventures Ltd | Administrative & support | 2026 |
| Lady Care Beauty Limited | Other services | 2018 |
| Lady Sativa Genetics Ltd | Administrative & support | 2020 |
| Lady White Glove Ltd | Administrative & support | 2022 |
| LAE Creative Ltd | Professional & scientific | 2019 |
| LAF Trading Company Limited | Information & communication | 2025 |
| Lafeaux Corp Limited | Transport & logistics | 2026 |
| Lagaan International Limited | Information & communication | 2025 |
| Laguna Beach & Golf Resorts Ltd | Real estate | 2025 |
| Laguna Resorts Vlora Ltd | Construction | 2025 |
| Lahman Auto Ltd | Wholesale & retail | 2020 |
| Laird & Kinsman Property Holdings Limited | Real estate | 2023 |
| Lajawab Foods Ltd | Wholesale & retail | 2016 |
| Lake Luton Limited | Real estate | 2024 |
| Lake RAJ Ltd. | Hospitality | 2013 |
| Lakes Property Commercial Limited | Real estate | 2020 |
| Lakeview Residents Association Limited | Households | 1972 |
| Lako Trans Limited | Transport & logistics | 2018 |
| Lakra Global Link Ltd | Wholesale & retail | 2011 |
| Lakshiya Collections Ltd | Wholesale & retail | 2025 |
| Lakshmirv Property Limited | Real estate | 2026 |
| LAL Cobra Limited | Hospitality | 2018 |
| LAL Properties (Norfolk Road) Ltd | Real estate | 2017 |
| LAL Properties Ltd | Real estate | 2013 |
| Lala JEE Restaurant Ltd | Hospitality | 2025 |
| Lamah Ltd | Wholesale & retail | 2025 |
| Lamar Drivers Ltd | Transport & logistics | 2016 |
| Lamarck Accountants Limited | Professional & scientific | 2025 |
| Lamarck PIN Limited | Education | 2016 |
| Lamba Desserts Limited | Hospitality | 2020 |
| Lambay Consultancy Limited | Professional & scientific | 2005 |
| Lambda Semantics Ltd | Information & communication | 2018 |
| Lamport Ltd | Real estate | 2025 |
| Lanbal Ltd | Administrative & support | 2023 |
| Lancing Homes Ltd | Real estate | 2022 |
| Lancot Developments Limited | Construction | 2018 |
| Land & Property (Luton) Ltd | Professional & scientific | 2000 |
| Land Assist Construction Limited | Construction | 2019 |
| Land Assist Developments 1 Limited | Construction | 2020 |
| Land Assist Developments 2 Limited | Construction | 2020 |
| Land Assist Group Limited | Construction | 2018 |