| LFN Properties Ltd | Real estate | 2021 |
| LFP Properties Limited | Real estate | 2022 |
| LFR Services Limited | Information & communication | 2016 |
| LG Boxing Ltd | Arts & recreation | 2021 |
| LG Crossfield Ltd | Real estate | 2018 |
| LG Fencing Limited | Construction | 2020 |
| Lgbt Capital Ltd | Extraterritorial | 2010 |
| Lgcoaching Ltd | Education | 2019 |
| LGD Productions Ltd. | Arts & recreation | 2016 |
| LGM Tech Ltd | Real estate | 2022 |
| LGP Estates Ltd | Real estate | 2010 |
| Lgsme Finance Limited | Administrative & support | 2016 |
| LGV Builder's Limited | Construction | 2021 |
| Lhlremovals Ltd | Transport & logistics | 2025 |
| LHR Logistic Services Ltd | Transport & logistics | 2026 |
| LIA Design Ltd | Wholesale & retail | 2026 |
| LIA Management Ltd. | Administrative & support | 2019 |
| Liah Properties Ltd | Real estate | 2025 |
| Liam Osbourne Consulting Ltd | Professional & scientific | 2025 |
| LIB One Limited | Real estate | 1993 |
| Libda Buildings Limited | Other services | 1994 |
| Liberian Connections Limited | Administrative & support | 2009 |
| Libertas Academy Ltd | Education | 2024 |
| Liberty & White Solicitors Limited | Professional & scientific | 2026 |
| Liberty Bell Holdings Limited | Professional & scientific | 2017 |
| Liberty Gold Consultancy Limited | Real estate | 2018 |
| Liberty Land Limited | Construction | 2010 |
| Liberty One Solutions Ltd | Construction | 2025 |
| Liberty Sailing Ltd | Administrative & support | 2023 |
| Liberty Springdale Limited | Construction | 2013 |
| Libertymd Limited | Real estate | 2024 |
| Libgo Limited | Real estate | 2022 |
| Libra Agencies (UK ) Limited | Wholesale & retail | 2006 |
| Libra Engineering Limited | Professional & scientific | 2024 |
| Library Properties Limited | Real estate | 2008 |
| Licence to Alter Limited | Professional & scientific | 2018 |
| Licensing Studio Limited | Administrative & support | 2016 |
| Licht & Morrison London Limited | Wholesale & retail | 2018 |
| Licuido Limited | Information & communication | 2022 |
| Licuido Markets Limited | Professional & scientific | 2019 |
| Lidman Solutions Limited | Information & communication | 2017 |
| Lido Properties Ltd | Real estate | 2021 |
| Lidstone Court Limited | Real estate | 1970 |
| Lidstones Investments Limited | Real estate | 1960 |
| Life Change Consult Limited | Education | 2021 |
| Life Change Training Limited | Information & communication | 2020 |
| Life From the Inside OUT Ltd | Administrative & support | 2018 |
| Life IS Precious Ltd | Wholesale & retail | 2023 |
| Life of Reilly Ltd | Hospitality | 2018 |
| Life Unlimited Consultancy Ltd | Professional & scientific | 2017 |
| Life Unlimited Performance Limited | Other services | 2020 |
| Life Vision Enterprises UK Ltd | Professional & scientific | 2026 |
| Lifecare Pharma Ltd | Wholesale & retail | 2020 |
| Lifecare Solution Ltd | Administrative & support | 2025 |
| Lifeline Appointments Limited | Administrative & support | 2008 |
| Lifeline I.T. Solutions Limited | Information & communication | 2002 |
| Lifestage Toys Limited | Wholesale & retail | 2011 |
| Lifestyle Building and Developments Limited | Construction | 2022 |
| Lifestyle Holdings International Ltd | Wholesale & retail | 2018 |
| Lifestyle Pods Limited | Construction | 2020 |
| Lifestyle Projects International Limited | Real estate | 2020 |
| Lifetime Warranty Limited | Financial services | 2024 |
| Lifewayslearningcentre Limited | Education | 2025 |
| Liffey Dent Limited | Health & social care | 2024 |
| Light and Flame Development Ltd | Construction | 2018 |
| Light Degree Limited | Information & communication | 2012 |
| Lightdale Trading Limited | Wholesale & retail | 2008 |
| Lightfluence Ltd | Arts & recreation | 2025 |
| Lightglo Ltd. | Professional & scientific | 2013 |
| Lighthouse Comms Limited | Information & communication | 2020 |
| Lighthouse Global Education Limited | Financial services | 2021 |
| Lighting and Crystal World Limited | Wholesale & retail | 2024 |
| Lightwater Waste Management Services Ltd | Other services | 2021 |
| LIL Critter Workshop Limited | Information & communication | 2021 |
| Lila Consultancy Limited | Health & social care | 2009 |
| Lilac Ventures LLP | | 2007 |
| Lilibet Productions Ltd | Arts & recreation | 2020 |
| Lilies of the Valley Ltd | Wholesale & retail | 2024 |
| Lillywhite DRY Cleaners Ltd | Other services | 2012 |
| LILO910 Limited | Health & social care | 2025 |
| Lily's Club Ltd | Other services | 2024 |
| Lima & Co Tax and Accounting Ltd | Professional & scientific | 2023 |
| Lima J Ltd | Construction | 2024 |
| Lima Logistics & Construction Limited | Construction | 2015 |
| Limbachia Community Seva Mandal | Extraterritorial | 2016 |
| Limbachia Seva Mandal | Extraterritorial | 2016 |
| Limbrecon Limited | Health & social care | 2015 |
| Lime Close Garden Management Co Ltd | Households | 1991 |
| Limeage Solutions PVT Ltd | Agriculture & fishing | 2025 |
| Limelight Celebrity Management Limited | Professional & scientific | 2009 |
| Limelight Community Ltd | Professional & scientific | 2008 |
| Limes Construction Ltd | Construction | 2017 |
| Limex Finance and Investments Ltd | Financial services | 2022 |
| Liminly Ltd | Real estate | 2022 |
| Limitless AI Automation Ltd | Information & communication | 2025 |
| Limitless Builders London Ltd | Construction | 2022 |
| Limoo Property Ltd | Real estate | 2024 |
| Limy Productions Limited | Information & communication | 2022 |
| Linaglobe Limited | Administrative & support | 2018 |
| Linc Business Limited | Information & communication | 2011 |