| Linguapro Ltd | Wholesale & retail | 2023 |
| Lingwood Management Services Limited | Construction | 2008 |
| Link Ergonomics Limited | Other services | 2000 |
| Link Surgica Ltd | Health & social care | 2016 |
| LINK3 Early Years Ltd | Administrative & support | 2026 |
| LINK3 EY Ltd | Administrative & support | 2026 |
| LINK3 Recruitment Limited | Administrative & support | 2017 |
| Linklift Solutions Ltd | Wholesale & retail | 2026 |
| Linkorg Networks Ltd | Information & communication | 2017 |
| Linkorg Properties Ltd | Real estate | 2022 |
| Links Healthcare Limited | Health & social care | 2021 |
| Linksbio Limited | Manufacturing | 2017 |
| Linkspare Limited | Construction | 1986 |
| Linman Trading Ltd. | Wholesale & retail | 2011 |
| Linscare Limited | Administrative & support | 2026 |
| Linsco Fit OUT Limited | Administrative & support | 2026 |
| Linsco Limited | Administrative & support | 1978 |
| Linsco Recruitment Limited | Administrative & support | 2008 |
| Linsocial Housing Limited | Administrative & support | 2026 |
| Linspay Limited | Administrative & support | 2026 |
| Linsue Care CIC | Real estate | 2024 |
| Linsum Building Contractors Ltd | Construction | 2024 |
| Lintris Ltd | Professional & scientific | 2022 |
| Linwood House (Nottingham) Limited | Health & social care | 2015 |
| Linwood Sourcing Ltd | Administrative & support | 2025 |
| Linx Estates Limited | Real estate | 2023 |
| Lion Britz Ltd | Manufacturing | 2025 |
| Lion Care Products Ltd | Health & social care | 2015 |
| Lion Haircare Limited | Manufacturing | 1998 |
| Lionel G Enterprise Limited | Administrative & support | 2012 |
| Lioness Properties Ltd | Real estate | 2021 |
| Lioness Recruitment Limited | Administrative & support | 2019 |
| Lionspan Property Ltd | Real estate | 2025 |
| LIP Service Casting Limited | Administrative & support | 1987 |
| Lipalo Ltd | Real estate | 2026 |
| Lipolift Ltd | Wholesale & retail | 2013 |
| Liquid Hygiene Limited | Professional & scientific | 2024 |
| Liquid Library Ltd | Hospitality | 2024 |
| Liquid Light Brewing Company Limited | Manufacturing | 2016 |
| Liquid Rubber Great Britain Limited | Construction | 2004 |
| Liquida Limited | Wholesale & retail | 2022 |
| Liquivoltaic Limited | Professional & scientific | 2025 |
| Liquor Enterprises Ltd | Wholesale & retail | 2023 |
| Lisa Design Co Ltd | Professional & scientific | 2018 |
| Lisa Inzani Limited | Financial services | 2014 |
| Lisa Pullum Limited | Health & social care | 2012 |
| Lisa Rose Care Solutions Limited | Health & social care | 2015 |
| Lisa Sharkey Limited | Financial services | 2011 |
| Lisa Twigger Permanent Makeup Limited | Wholesale & retail | 2013 |
| Lisa's Barber Shop Ltd | Other services | 2012 |
| Lisburn V.E. Limited | Other services | 1999 |
| Lissa KAY Legal Ltd | Professional & scientific | 2024 |
| Lissie Loves Ltd | Professional & scientific | 2023 |
| Lister Property Advisers Limited | Professional & scientific | 2003 |
| Listify Ltd | Wholesale & retail | 2025 |
| LIT Car and Parts Company Ltd | Wholesale & retail | 2021 |
| LIT Theatre Company Ltd | Health & social care | 2020 |
| Litania Healthcare Professional Services Ltd | Health & social care | 2014 |
| Litchfield Financial Services Ltd | Professional & scientific | 2019 |
| Litchfields Holdings Ltd | Manufacturing | 2022 |
| Lite Apps Limited | Information & communication | 2017 |
| Litehouse UK Ltd | Professional & scientific | 2007 |
| Lithia Financial Services Limited | Professional & scientific | 1966 |
| Lithia Motors Group UK Limited | Professional & scientific | 1990 |
| Lithia UK Holding Limited | Wholesale & retail | 2022 |
| Litigant Ally Ltd | Professional & scientific | 2026 |
| Little Adventurers Forest School (Walesby) Ltd | Health & social care | 2020 |
| Little Adventurers Forest School Ltd. | Education | 2017 |
| Little Angel Childcare Limited | Health & social care | 2024 |
| Little Bean Properties Limited | Real estate | 2016 |
| Little Beans Childcare Ltd | Health & social care | 2015 |
| Little Big Shot Limited | Professional & scientific | 2013 |
| Little Brickhouse Ltd | Hospitality | 2021 |
| Little Chicks Community Shop CIC | Wholesale & retail | 2025 |
| Little Compass Therapy and Neurodevelopmental Assessments Limited | Health & social care | 2025 |
| Little Dove Photography Ltd | Professional & scientific | 2023 |
| Little Eaton Engineering Limited | Professional & scientific | 2025 |
| Little Elms Pre-School (Oxton) Limited | Health & social care | 2020 |
| Little Explorers Mansfield Limited | Health & social care | 2021 |
| Little Faces Childcare Limited | Education | 2012 |
| Little Fields Farm Limited | Wholesale & retail | 2017 |
| Little FIR Trees Limited | Education | 2021 |
| Little Fish (UK) Limited | Information & communication | 2003 |
| Little Foresters Community Interest Company | Education | 2019 |
| Little Foundations Ltd | Education | 2026 |
| Little Foxes Play Town Ltd | Arts & recreation | 2022 |
| Little Green Kitchen Ltd | Hospitality | 2023 |
| Little House Childcare of Brinsley Limited | Education | 2015 |
| Little John Promotions Limited | Hospitality | 2024 |
| Little Lambs at Lambley Ltd | Education | 2024 |
| Little Lane Dog Retreat Limited | Other services | 2024 |
| Little Legs Baby Yoga and Massage Limited | Other services | 2017 |
| Little Lion Cubs Nursery Ltd | Education | 2025 |
| Little London Herbal Store (Eastwood) Ltd | Wholesale & retail | 2025 |
| Little London Herbal Store Limited | Wholesale & retail | 2003 |
| Little Miracles Clothing Limited | Wholesale & retail | 2023 |
| Little Miss Muffin Ltd | Manufacturing | 2025 |
| Little Oaks Limited | Education | 2000 |
| Little OWL Property Limited | Real estate | 2020 |
| Little Priory Properties Ltd | Real estate | 2025 |