| L.A Events Ltd | Arts & recreation | 2022 |
| LA Baguette & Co Wrexham Ltd | Hospitality | 2023 |
| LA Galerie Ltd | Professional & scientific | 2025 |
| LA Noria Holiday Club Limited | Hospitality | 1991 |
| Lager Town Ltd | Hospitality | 2026 |
| Lahru Property Ltd | Real estate | 2020 |
| Laid Bare Aesthetics Ltd | Other services | 2024 |
| Laid Bare Beauty Limited | Other services | 2019 |
| Lakeside Beauty Limited | Other services | 2003 |
| Lakiluk Ltd | Wholesale & retail | 2016 |
| Lampshades by Victoria Ltd | Manufacturing | 2024 |
| Landbank Management Limited | Real estate | 2003 |
| Landholding (North Wales) Limited | Real estate | 2005 |
| Lane Property Holdings (WXM) Ltd | Real estate | 2025 |
| Lanes Consulting Limited | Administrative & support | 2013 |
| Langford Letting Services Limited | Real estate | 2025 |
| Lanzability Limited | Hospitality | 2022 |
| Lapd NW Ltd | Real estate | 2024 |
| Lapdnw & Construction Ltd | Construction | 2025 |
| Larynx Entertainment Ltd | Information & communication | 2018 |
| Latitude Consultancy Limited | Professional & scientific | 2026 |
| Laughing FOX Products Ltd | Wholesale & retail | 2019 |
| Launchers Limited | Professional & scientific | 2025 |
| Laurakjlogistics Ltd | Transport & logistics | 2024 |
| Laurel Grange Kennels Limited | Other services | 2023 |
| Lauren Jackson FOB Ltd | Education | 2022 |
| Lavish Hair Lounge Limited | Other services | 2023 |
| Lawless Clothing Ltd | Wholesale & retail | 2025 |
| Lawton Career Coaching Limited | Professional & scientific | 2015 |
| LAZ Barbershop Ltd | Other services | 2023 |
| Lazer Technologies Limited | Manufacturing | 2012 |
| LB Home Improvements Limited | Construction | 2014 |
| LB Motors Wrexham Limited | Wholesale & retail | 2021 |
| LB Storage (Wrexham) Ltd | Real estate | 2022 |
| LD Auto Services Limited | Wholesale & retail | 2011 |
| LDJ Building & Construction Ltd | Construction | 2025 |
| Leaf 3D Printing Ltd | Manufacturing | 2022 |
| Lean Optimisation Europe Limited | Professional & scientific | 2015 |
| Leda Art Supply Limited | Wholesale & retail | 2017 |
| Ledgers Bookkeeping Services Limited | Professional & scientific | 2003 |
| LEE Wright Plumbing & Heating Limited | Construction | 2017 |
| Legacy Property Wealth Holdings Ltd | Real estate | 2026 |
| Legacy Service Station (Rhos) Limited | Wholesale & retail | 1973 |
| Legalbase WRX Limited | Professional & scientific | 2019 |
| Leica Rentals Ltd | Real estate | 2003 |
| Leighton COX Media Limited | Other services | 2016 |
| Lemon-Squeezy Education CIC | Education | 2025 |
| Lendlaw Capital Limited | Professional & scientific | 2022 |
| Lenkas Links Limited | Transport & logistics | 2026 |
| Leno Associates Limited | Real estate | 2017 |
| LEO Rail Solutions Ltd | Construction | 2019 |
| Lesley J. Percival Financial Services Ltd. | Real estate | 2002 |
| Let's Flow Ltd | Financial services | 2025 |
| Lets EAT Event Catering Ltd | Hospitality | 2026 |
| Lettings MTS Ltd | Real estate | 2025 |
| Levercliff Associates Limited | Administrative & support | 2002 |
| Lewis & Co Moving Group Ltd | Water & waste | 2026 |
| Lewis's Farm Shop Limited | Wholesale & retail | 2010 |
| Lexii Sports Management Limited | Arts & recreation | 2012 |
| Lexinova Language Services Limited | Professional & scientific | 2025 |
| LFM Connect Ltd | Construction | 2020 |
| Lgpsychology Ltd | Education | 2021 |
| LH Avenue Limited | Real estate | 2020 |
| Life in Wrexham Ltd | Professional & scientific | 2026 |
| Life Long Learning 4 Living Ltd | Health & social care | 2006 |
| Lifevision Worldwide Limited | Professional & scientific | 2018 |
| Lifeworx Journey Ltd Ltd | Other services | 2020 |
| Lilac Properties Holt Ltd. | Hospitality | 2017 |
| Lilly's Laser & Skin Ltd | Other services | 2023 |
| Lily Engineering Limited | Construction | 2015 |
| Lily's Landscapes Limited | Professional & scientific | 2021 |
| Limegrove Build Limited | Construction | 2013 |
| Limegrove Homes Limited | Construction | 1999 |
| Limekiln Restorations Ltd | Other services | 2013 |
| Limitless London Ltd | Real estate | 2025 |
| Limitless Peak Fitness & Wellbeing Limited | Health & social care | 2026 |
| Limpet Labels (U.K.) Limited | Manufacturing | 1992 |
| Lindan House Limited | Health & social care | 2013 |
| Line Design Technology Limited | Professional & scientific | 2010 |
| Ling Trust Limited | Hospitality | 1991 |
| Link Engineering and Welding Ltd | Construction | 2010 |
| Link Engineering Limited | Real estate | 2014 |
| Link Motors and Drives Limited | Manufacturing | 2014 |
| Link Powder Coating & Metal Finishing Ltd | Manufacturing | 2014 |
| Link Power Transmissions Limited | Wholesale & retail | 2017 |
| Lion Financial Limited | Professional & scientific | 2019 |
| Lisa Groome Tailor Made Travel Limited | Administrative & support | 2020 |
| Lisbon Tapas Limited | Hospitality | 2024 |
| Lister Developments Limited | Construction | 2018 |
| Litegreen Foundation CIC | Professional & scientific | 2022 |
| Litegreen Ltd | Administrative & support | 2018 |
| Litesome Ltd | Wholesale & retail | 2022 |
| Little Acton Convenience Ltd | Wholesale & retail | 2026 |
| Little Films Limited | Arts & recreation | 2014 |
| Little Luxury Beauty Club Ltd | Other services | 2019 |
| Little MAN Developments Limited | Real estate | 2022 |
| Little Steps to a Bright Future Ltd | Education | 2026 |
| Liverpool Tyres Ltd | Wholesale & retail | 2025 |
| Livewire Elec Limited | Construction | 2023 |
| Living Hope Social Care Limited | Health & social care | 2022 |