| Liamsi Ltd | Health & social care | 2023 |
| LIB Health Limited | Professional & scientific | 2013 |
| Libercation Ltd | Education | 2021 |
| Liberty Khana Ltd | Hospitality | 2025 |
| LIBERTY360 Limited | Information & communication | 2018 |
| Lick Ice Cream Company (UK) Limited | Manufacturing | 2025 |
| Lidget 17 Limited | Hospitality | 2026 |
| Life Without Barriers Holdings Ltd | Health & social care | 2023 |
| Lifestyle and Legacy Ltd | Professional & scientific | 2025 |
| Lifskin UK Ltd | Wholesale & retail | 2022 |
| Lift Lessons Ltd | Information & communication | 2019 |
| Ligandinc Ltd | Professional & scientific | 2022 |
| Lightfoot Workman Group Ltd | Financial services | 2025 |
| Lighthouse Care Residential Ltd | Health & social care | 2024 |
| Lighthouse International Ltd | Households | 2024 |
| Lighthouse Legacy Planning Limited | Professional & scientific | 2026 |
| Lighthouse Property Group Limited | Real estate | 2019 |
| Lights Leisure Limited | | 1984 |
| LIH Trading Ltd | Wholesale & retail | 2015 |
| Lijuano Properties (UK) Limited | Real estate | 2024 |
| Lila's Contracting Solutions Limited | Administrative & support | 2015 |
| Liley Clough Environmental Limited | Other services | 2020 |
| Lilo Beverages Ltd | Wholesale & retail | 2018 |
| Lily Nails Huddersfield Limited | Other services | 2025 |
| Lilys of London Holdings Limited | Professional & scientific | 2009 |
| Lilys of London Limited | Real estate | 1967 |
| Lilyspring Global Venture Limited | Health & social care | 2008 |
| Lima Pensions Limited | Professional & scientific | 1996 |
| Limelight Occasions Limited | Wholesale & retail | 2007 |
| Limitbar Limited | Real estate | 1981 |
| Limitless Care Ltd | Administrative & support | 2018 |
| Linda Patterson Social Work Consultancy Ltd | Health & social care | 2018 |
| Lindale VR Limited | Wholesale & retail | 2013 |
| Lindcare Limited | Administrative & support | 2016 |
| Lindley Church of England Infant School | Education | 2014 |
| Lindley Developments Limited | Construction | 2024 |
| Lindley Grocery Store Ltd | Wholesale & retail | 2023 |
| Lindley Group Practice Limited | Health & social care | 2022 |
| Lindley Human Resources Ltd | Professional & scientific | 2009 |
| Lindley Out-Of-School Club | Arts & recreation | 1997 |
| Lindley Physiotherapy Practice Ltd | Health & social care | 2007 |
| Lindley Properties Limited | Real estate | 2012 |
| Lindley PUB Company Limited | Hospitality | 2017 |
| Lindley Recruitment Limited | Administrative & support | 2023 |
| Lindley Spice Ltd | Hospitality | 2025 |
| Lindley Village Surgery Ltd | Health & social care | 2020 |
| Line Distance Limited | Real estate | 2006 |
| Linearbearingsrus Limited | Wholesale & retail | 2025 |
| Linfit Developments Limited | Construction | 2001 |
| Linfit Group Holdings Ltd | Financial services | 2023 |
| Linfit Investments (Wakefield) Limited | Construction | 2008 |
| Linfit Investments (Yorkshire) Limited | Construction | 2008 |
| Linfit Investments Limited | Construction | 1998 |
| Linfit Mill Management Company Limited | Real estate | 1993 |
| Linfit Properties Limited | Real estate | 2023 |
| Ling Computers Ltd | Wholesale & retail | 2014 |
| Lingard Properties Limited | Real estate | 2026 |
| Lingard Stead Electrical Ltd | Construction | 2024 |
| Lingards Road (Slaithwaite) Management Company Limited | Households | 2024 |
| Link Flowers Limited | Wholesale & retail | 2024 |
| Link Medics Ltd | Health & social care | 2013 |
| Link Mobile Limited | Wholesale & retail | 2017 |
| Link-Up Data Systems Limited | Information & communication | 1995 |
| Linked Influence Limited | Professional & scientific | 2024 |
| Linkup Translation Limited | Professional & scientific | 2002 |
| Linthorpe 54 Limited | Real estate | 2023 |
| Linthwaite Educational Consultancy Ltd | Education | 2018 |
| Linthwaite Motor Repairs Ltd | Wholesale & retail | 2020 |
| Lion's Landscapes Limited | Administrative & support | 2023 |
| Liphill Developments Limited | Construction | 1990 |
| Liquid Global Group Limited | Transport & logistics | 2026 |
| Liquipak Limited | Wholesale & retail | 2017 |
| LIR (Investco) Limited | Real estate | 2014 |
| Lisa Lane Limited | Professional & scientific | 2002 |
| Lisa VN Nail Bar Limited | Other services | 2026 |
| Lish.Mus Ltd | Health & social care | 2021 |
| LIT Communication Limited | Professional & scientific | 2018 |
| Liter Lives Limited | Health & social care | 2025 |
| Lithana Creative Ltd | Manufacturing | 2024 |
| Litlle Nook Deli and Pantry Ltd | Hospitality | 2026 |
| Little Bikers Ltd | Arts & recreation | 2021 |
| Little Explorers Huddersfield Ltd | Health & social care | 2011 |
| Little Gems Market Ltd | Wholesale & retail | 2022 |
| Little Italy (Huddersfield) Ltd | Hospitality | 2024 |
| Little Italy Takeaway Ltd | Hospitality | 2025 |
| Little Kensington Ltd | Wholesale & retail | 2025 |
| Little Kirkfield Farm Contracting Services Ltd | Agriculture & fishing | 2025 |
| Little Mattress Company Limited | Manufacturing | 2012 |
| Little Shining Stars Ltd | Health & social care | 2013 |
| Little Treasures 17 Ltd | Wholesale & retail | 2018 |
| Little US Films Limited | Information & communication | 2013 |
| Little Valley Play Limited | Hospitality | 2025 |
| Littlehaven Care Ltd | Health & social care | 2025 |
| Littler IR Limited | Health & social care | 2026 |
| Littlethingsbybison Limited | Manufacturing | 2026 |
| Littlewood and Company CSV Limited | Professional & scientific | 2021 |
| Littlewoods Properties Ltd | Extraterritorial | 2024 |
| Littlewoods Tiling Specialists Limited | Administrative & support | 2016 |
| LIV at Serenity Ltd | Other services | 2023 |
| LIV Beauty Ltd | Other services | 2025 |