| Lafamili Productions UK Limited | Other services | 2018 |
| Laferla Medical Cosmetics Limited | Health & social care | 2019 |
| Lafontaine Limited | Professional & scientific | 2013 |
| Lafti Ltd | Wholesale & retail | 2020 |
| Lagasy Management Ltd | Financial services | 2018 |
| Lagolbe & Success Ltd | Other services | 2017 |
| Lagoonte Ltd | Wholesale & retail | 2025 |
| Lagos Lounge Ltd | Hospitality | 2020 |
| Lagriffinaire Ltd | Wholesale & retail | 2018 |
| Lahore Food Catering Ltd | Hospitality | 2018 |
| Laidan Homes Ltd | Real estate | 2022 |
| Laika Design Studios Ltd. | Information & communication | 2013 |
| Lailpur Ltd | Wholesale & retail | 2025 |
| Laine Steel PC | | 2017 |
| Laing Holdings Limited | Extraterritorial | 1995 |
| Laird Bailey Arboriculture Ltd | Professional & scientific | 2026 |
| Lakara Ltd | Information & communication | 2020 |
| Lakc Solutions Ltd | Construction | 2025 |
| Lakdzg Mart Ltd | Wholesale & retail | 2025 |
| Lake Lane Management Company Limited | Households | 2026 |
| Lake Park House Management Ltd | Administrative & support | 2015 |
| Lake Park Properties Limited | Households | 1981 |
| Lake Pulse Software Ltd | Information & communication | 2025 |
| Lake Road Developments Ltd | Construction | 2017 |
| Lake View Court Residents Association Limited | Households | 2000 |
| Lakedale Limited | Construction | 1985 |
| Lakelands Court Management Company Limited | Households | 2005 |
| Lakerise Limited | Wholesale & retail | 2024 |
| Lakers Restaurant Ltd | Hospitality | 2025 |
| Lakes Heating Services Limited | Construction | 2016 |
| Lakeshore Medical Ltd | Education | 2025 |
| Lakeside Court Estate Management Company Limited | Administrative & support | 2010 |
| Lakeside Fish Bar Limited | Hospitality | 2024 |
| Lakeside Homes Limited | Health & social care | 1992 |
| Lakeside Pizza Limited | Hospitality | 2025 |
| Lakeside Properties (Cold Hawaii) Limited | Real estate | 2022 |
| Lakeside Signs Limited | Manufacturing | 2006 |
| Lakeside Visa Consultancy Ltd | Professional & scientific | 2025 |
| Lakestan Limited | Professional & scientific | 2019 |
| Lakeworth Ltd | Hospitality | 2021 |
| Lakhani Properties Holding Ltd | Real estate | 2026 |
| Lakhwinder SINGH1 Ltd | Construction | 2025 |
| Laknights Enterprises Ltd | Hospitality | 2025 |
| Laksahena Group PVT Ltd | Agriculture & fishing | 2025 |
| Lakshmi MND Limited | Health & social care | 2012 |
| Lakshmi Stores Cardiff Ltd | Wholesale & retail | 2024 |
| Lakshya Construction Ltd | Construction | 2026 |
| Laksup Limited | Professional & scientific | 2017 |
| Laku NEG Limited | Information & communication | 2020 |
| LAL Construction Ltd | Construction | 2021 |
| LAL Fuels Group Ltd | Wholesale & retail | 2026 |
| Lala Vape Ltd | Wholesale & retail | 2025 |
| Lalada Kitchen Limited | Information & communication | 2021 |
| Lalas Groups Ltd | Wholesale & retail | 2024 |
| Lalas Tuning Ltd | Wholesale & retail | 2025 |
| Lalesphere Limited | Wholesale & retail | 2025 |
| Lally Cart Ltd | Wholesale & retail | 2026 |
| Lalu Life Limited | Information & communication | 2020 |
| Lalua Ltd | Wholesale & retail | 2026 |
| LAM Recruitment Limited | Administrative & support | 2021 |
| Lamar Retail Ltd | Manufacturing | 2023 |
| Lamarck Holdings Limited | Financial services | 2022 |
| Lamarre Ltd | Professional & scientific | 2026 |
| Lamart Food Limited | Wholesale & retail | 2020 |
| Lamat CJR Private Limited | Administrative & support | 2021 |
| Lambalia Limited | Administrative & support | 2013 |
| Lambda Quantum Ltd | Information & communication | 2025 |
| Lambert Kitchens & Joinery Ltd | Construction | 2020 |
| Lambert Print & Design Limited | Manufacturing | 2002 |
| Lambody Ltd | Wholesale & retail | 2024 |
| Lambra Group Ltd | Other services | 2023 |
| Lamesh Limited | Wholesale & retail | 2025 |
| Laminar Insights Ltd | Information & communication | 2025 |
| Lamiya Mahmud Enterprises Ltd | Wholesale & retail | 2025 |
| Lammy Hairs and More Ltd | Other services | 2025 |
| Lamor Enterprises UK Limited | Information & communication | 2015 |
| Lamp Technology Services Limited | Information & communication | 2018 |
| Lamphai Thai Ltd | Other services | 2022 |
| Lamponi Publishing Ltd | Information & communication | 2025 |
| Lamspring Limited | | 1983 |
| Lamu Technology Co., Ltd | Extraterritorial | 2021 |
| LAN Fawr Energy Park Limited | Energy | 2020 |
| LAN YOU Limited | Information & communication | 2025 |
| Lana (Cardiff) Ltd | Hospitality | 2019 |
| Lana Beauty & Aesthetics Ltd | Other services | 2023 |
| Lana Media Limited | Administrative & support | 2020 |
| Lanarin Limited | Wholesale & retail | 2025 |
| Lancashire Carpets and Flooring (Preston) Ltd | Construction | 2025 |
| Lancashire DRY Lining Ltd | Construction | 2020 |
| Lancashire Enterprises Ltd | Construction | 2020 |
| Lancashire Fruit & Grocery Limited | Wholesale & retail | 2018 |
| Lancashire Importers & Wholesalers Ltd. | Wholesale & retail | 2015 |
| Lancaster College of Specialized Sciences Ltd | Education | 2024 |
| Lancastrian Legacy Ltd | Wholesale & retail | 2024 |
| Land & Property Sales North West Limited | Real estate | 2024 |
| Land and Forestry Limited | Administrative & support | 2006 |
| Land-Based Living CIC | Construction | 2025 |
| Landarch Limited | Health & social care | 2024 |
| Landary Ltd | Real estate | 2020 |
| Landbury Property Limited | Real estate | 2020 |