| Lilhol Holdings Limited | Real estate | 2023 |
| Lilhol Limited | Real estate | 2014 |
| Lilia Phone Repairs Ltd | Other services | 2024 |
| Lilia Properties Leeds Ltd | Real estate | 2023 |
| Liliavd Transport Limited | Transport & logistics | 2025 |
| Lilies Fresh Foods Ltd | Wholesale & retail | 2025 |
| Lilly Fashion Ltd | Manufacturing | 2025 |
| Lilly Young Property Limited | Real estate | 2024 |
| Lilly's Mentoring & Building Confidence Limited | Health & social care | 2016 |
| Lilly-Jane & Co. Ltd | Wholesale & retail | 2025 |
| Lillyannes Spiritual Services Limited | Information & communication | 2016 |
| Lily AVA Limited | Professional & scientific | 2019 |
| Lily Bloom Tutoring C.I.C. | Education | 2025 |
| Lily Communications Ltd. | Information & communication | 2009 |
| Lily Jane Properties Ltd | Hospitality | 2024 |
| Lily Lace Ltd | Wholesale & retail | 2024 |
| Lily Neurology Limited | Health & social care | 2010 |
| Lily's Events Limited | Wholesale & retail | 2024 |
| Lilyacre Properties Limited | Real estate | 2000 |
| Lilypad Homes Limited | Real estate | 2022 |
| Lilyrose Ventures Ltd | Health & social care | 2013 |
| Lima Home Maintenance Ltd | Construction | 2021 |
| Limbani Group Limited | Financial services | 2013 |
| Limbprint Ltd | Manufacturing | 2021 |
| Limbtex Holdings Limited | Financial services | 2019 |
| Limbtex Ltd | Manufacturing | 2006 |
| Limcam IT Services Limited | Information & communication | 2026 |
| Lime Apples Limited | Wholesale & retail | 2014 |
| Lime Bar Yorkshire Ltd | Hospitality | 2025 |
| Lime Green Holiday Lets Ltd | Hospitality | 2021 |
| Lime Green Yorkshire Ltd | Real estate | 2015 |
| Lime Grove (Chapel Allerton) Limited | Households | 2007 |
| Lime Grove (North Anston) Management Company 1 Limited | Households | 2026 |
| Lime PPS Ltd | Administrative & support | 2021 |
| Lime Property Works Limited | Real estate | 2025 |
| Lime Tree Bistro Ltd | Hospitality | 2018 |
| Lime Tree Foods Limited | Manufacturing | 2000 |
| Limeapps Ltd | Professional & scientific | 2023 |
| Limehouse Films Limited | Information & communication | 2007 |
| Limelight Homes Limited | Financial services | 2026 |
| Limelight Learning Systems UK Limited | Information & communication | 2022 |
| Limerence Media Ltd | Information & communication | 2025 |
| Limeshore Ltd | Wholesale & retail | 2016 |
| Limespired Group Investments Ltd | Real estate | 2023 |
| Limespired Lettings Ltd | Real estate | 2023 |
| Limetree Lodge Management Limited | Households | 2004 |
| Limitless Display Technologies Ltd | Administrative & support | 2011 |
| Limitless Healthcare Services Ltd | Administrative & support | 2021 |
| Limitless People Limited | Wholesale & retail | 2020 |
| Limitless Property Rentals Ltd | Real estate | 2021 |
| Limjo Properties Ltd | Real estate | 2023 |
| Limo Limited | Arts & recreation | 2018 |
| Limpo's Cleaning Services Ltd | Administrative & support | 2022 |
| LIN Takeaway Leeds Ltd | Hospitality | 2024 |
| Linaconsultancywork Ltd | Information & communication | 2025 |
| Linas MAC Ltd | Transport & logistics | 2018 |
| Linawa Ltd | Hospitality | 2026 |
| Linbob Limited | Extraterritorial | 2015 |
| Lincoln Apartments Ltd | Real estate | 2024 |
| Lincoln Change Management Ltd | Professional & scientific | 2023 |
| Lincoln Hughes Design Limited | Administrative & support | 2010 |
| Lincoln Residences Ltd | Real estate | 2024 |
| Lincoln Retina Limited | Health & social care | 2012 |
| Lincoln Warwick Limited | Financial services | 1996 |
| Lincolnshire Craft Beers Limited | Manufacturing | 2017 |
| Lincroft Investments Limited | Real estate | 2020 |
| Lincs Investment Holdings Limited | Financial services | 2025 |
| Lincs Opportunities Limited | Financial services | 2022 |
| Linda Rose Inc Ltd | Education | 2026 |
| Lindavis Healthcare Services Limited | Health & social care | 2015 |
| Linden Court (Ilkley) Management Company Limited | Households | 1995 |
| Linden LEA Properties (UK) Ltd | Real estate | 2009 |
| Lindermere Ltd | Real estate | 2025 |
| Lindhavan Property Ltd | Real estate | 2026 |
| Lindner-Green Ltd | Administrative & support | 2014 |
| Lindrick Associates Ltd | Real estate | 2023 |
| Lindsay Broadley Photography Ltd | Professional & scientific | 2014 |
| Line and Level Interiors Ltd | Construction | 2026 |
| Line Made Ltd | Professional & scientific | 2015 |
| Linea Capital Holdings Ltd | Financial services | 2026 |
| Linea Formation Ltd | Professional & scientific | 2026 |
| Linea Group Limited | Professional & scientific | 2003 |
| Linea Limited | Administrative & support | 2023 |
| Linear Control Systems Installations LLP | | 2014 |
| Linear Control Systems Investments LLP | | 2009 |
| Linear Control Systems Limited | Construction | 2005 |
| Linear Control Systems Maintenance Limited | Construction | 2014 |
| Lineinthesandgamestudios Ltd | Information & communication | 2025 |
| Linetty Health Ltd | Health & social care | 2012 |
| Lineup Ninja Ltd | Information & communication | 2017 |
| Linewize Limited | Information & communication | 2021 |
| Linexo Ltd | Information & communication | 2025 |
| Ling BOB Limited | Construction | 2013 |
| Ling BOB Mills Management Co. Limited | Extraterritorial | 2007 |
| Ling Classic Cars Ltd | Wholesale & retail | 2020 |
| Ling Electronics Ltd | Administrative & support | 2015 |
| Ling Lane Management Limited | Real estate | 2016 |
| Ling Signs Limited | Wholesale & retail | 1975 |
| Lingar Properties Ltd | Real estate | 2011 |
| Lingard Bell Limited | Real estate | 2015 |