| LA Piazza DEL Coffee Ltd | Hospitality | 2017 |
| LA Pizza Express Ltd | Hospitality | 2025 |
| LA Quee Entertainment Ltd | Hospitality | 2019 |
| LA Reina Property Solutions Limited | Real estate | 2021 |
| LA Senda Tapas Bar Ltd | Hospitality | 2026 |
| LA Vaca Steakhouse Ltd | Hospitality | 2024 |
| LA Vida ES UN MUS Discos Limited | Arts & recreation | 2013 |
| Laali's Collection Ltd | Wholesale & retail | 2025 |
| LAB 194 Limited | Health & social care | 2010 |
| LAB Blades Ltd | Wholesale & retail | 2023 |
| LAB Law Limited | Professional & scientific | 2022 |
| LAB42 Limited | Information & communication | 2015 |
| Labaraad Electrical Limited | Manufacturing | 2014 |
| Labareda Consulting Limited | Professional & scientific | 2022 |
| Labcvd Ltd | Information & communication | 2023 |
| Labecc Carpets Limited | Wholesale & retail | 2001 |
| Label Origin Ltd | Manufacturing | 2024 |
| Labelle Property Management Ltd | Real estate | 2025 |
| Lablogic (2012) Limited | Extraterritorial | 2011 |
| Lablogic EOT Limited | Professional & scientific | 2024 |
| Lablogic Group Holdings Limited | Information & communication | 2011 |
| Lablogic Systems Limited | Manufacturing | 1986 |
| Labour Friends of Yemen Ltd | Administrative & support | 2018 |
| Labrador Brewery Ltd | Manufacturing | 2024 |
| Labre's Hope Community Interest Company | Manufacturing | 2019 |
| Labs Building Services Ltd | Construction | 2016 |
| Laburnum Consultants Limited | Professional & scientific | 1996 |
| Laburnumgrove Limited | Administrative & support | 2017 |
| Lacdemissy Limited | Administrative & support | 2020 |
| Laces Boxing Club Limited | Arts & recreation | 2017 |
| Lacey Brown Motorsport Ltd | Arts & recreation | 2020 |
| Laceypubs Ltd | Hospitality | 2025 |
| Lacker Bidco Limited | Financial services | 2023 |
| Lacker Finco Limited | Financial services | 2023 |
| Lacker Midco Limited | Financial services | 2023 |
| Laconi Express Limited | Transport & logistics | 2025 |
| Ladas (NW) Limited | Wholesale & retail | 2023 |
| Ladiebee Global Limited | Wholesale & retail | 2026 |
| Lads Laser LAB Ltd | Wholesale & retail | 2025 |
| Lads Ventures Ltd | Administrative & support | 2022 |
| Lady James Limited | Information & communication | 2014 |
| Lady With a Van Ltd | Transport & logistics | 2024 |
| Ladybower Lodge Management Company Limited | Households | 2003 |
| Ladybower Lodge Right to Manage Company Limited | Households | 2026 |
| Ladygold Management Company Limited | Households | 1993 |
| Ladytron Limited | Arts & recreation | 2008 |
| Lafayette Global Consulting Ltd | Professional & scientific | 2024 |
| Lafeber International Limited | Manufacturing | 2012 |
| Lagzyl Logistics and Autos Limited | Transport & logistics | 2025 |
| LAH2024 Limited | Health & social care | 2023 |
| Laidler Plant Hire Limited | Construction | 2014 |
| Laik Sports Management Limited | Professional & scientific | 2022 |
| Laird Road Apartments Limited | Households | 2015 |
| Laird Road Flats Limited | Households | 1982 |
| Lait Electrical Services Ltd | Construction | 2024 |
| Laitier Holdings Limited | Real estate | 2021 |
| LAK 49 Ltd | Real estate | 2020 |
| Lakebuild Limited | Other services | 2020 |
| Lakehill Services Limited | Information & communication | 2024 |
| Lakeland Tankers Limited | Manufacturing | 1994 |
| Laken Care Limited | Health & social care | 2015 |
| Lakeview Health Care Limited | Health & social care | 2018 |
| Laking Painting Contractors Ltd | Construction | 2025 |
| Lakshmi Trading Ltd | Wholesale & retail | 2019 |
| Lakun Group Ltd | Professional & scientific | 2025 |
| LAM Warehousing Ltd | Real estate | 2025 |
| Lamar National Limited | Wholesale & retail | 2023 |
| Lambda Consult Limited | Information & communication | 2022 |
| Lambert & Smith Properties Ltd | Real estate | 2025 |
| Lambert Installations Limited | Construction | 2023 |
| Lamberts at Rawmarsh Ltd | Wholesale & retail | 2020 |
| Lamberts Properties Ltd | Real estate | 2019 |
| Laminates International Limited | Construction | 2013 |
| Lamp & Pony Limited | Hospitality | 2008 |
| Lampros Lazouras Limited | Professional & scientific | 2025 |
| Lampson Design Ltd | Information & communication | 2013 |
| Lanark Artefax Limited | Information & communication | 2019 |
| Lancar Limited | Manufacturing | 2009 |
| Lancaster Court (Barnsley) Management Company Limited | Professional & scientific | 2003 |
| Lancaster Gate (W2 3NA) Management Limited | Households | 2004 |
| Lancaster Howe Investments Ltd | Real estate | 2025 |
| Lancaster Street Management Company Limited | Households | 2005 |
| Lancaster's Holiday Lets Ltd | Hospitality | 2024 |
| Lancasters (Leeds) Limited | Construction | 1988 |
| Lancasters General Store Limited | Wholesale & retail | 2017 |
| Lancasters Property Management Limited | Real estate | 1998 |
| Lancasters Property Services Limited | Financial services | 1989 |
| Lance Paragon Limited | Extraterritorial | 2003 |
| Land a Party Limited | Hospitality | 2022 |
| Land and Developments Limited | Construction | 2001 |
| Land Cask Ltd | Professional & scientific | 2022 |
| Land Development Limited | Professional & scientific | 1986 |
| Land Development Solutions Limited | Construction | 2005 |
| Land on the South Side of Tyler Street Limited | Real estate | 2022 |
| Land Stock Holdings Limited | Construction | 2022 |
| Landers Rail Limited | Construction | 2009 |
| Landin Wilcock & Company Limited | Extraterritorial | 2024 |
| Landlayers Design Ltd | Professional & scientific | 2011 |
| Landmark Healthcare Limited | Health & social care | 2015 |
| Landmarks Specialist College | Education | 1995 |