| Little India Spice Ltd | Hospitality | 2024 |
| Little Nuvia Ltd | Manufacturing | 2026 |
| Little Pizzeria Ltd | Hospitality | 2023 |
| Little Robbins Limited | Education | 2024 |
| Little Taste of Heaven Limited | Hospitality | 2022 |
| Littlebox Properties Ltd | Real estate | 2021 |
| Littles Fire and Security Solutions Ltd | Administrative & support | 2026 |
| Live Band Management Ltd | Arts & recreation | 2024 |
| Livic Ltd | Health & social care | 2022 |
| Living Improvement Construction Limited | Construction | 2025 |
| Living Water Willenhall | Wholesale & retail | 2012 |
| Living Xperience Connexions Limited | Other services | 2009 |
| Livinna Ltd | Wholesale & retail | 2023 |
| Livlife Real Estate Limited | Real estate | 2025 |
| Lizzie Rose Ltd | Professional & scientific | 2025 |
| LJ Communications Services Limited | Information & communication | 2021 |
| LJ Estate Management Ltd | Real estate | 2020 |
| LJ Photography South Ltd | Professional & scientific | 2022 |
| LJF & Sons Ltd | Construction | 2026 |
| LJG Property Developments Ltd | Real estate | 2025 |
| LJH Records Ltd | Manufacturing | 2025 |
| LJR Group Holdings Limited | Financial services | 2025 |
| LJT Services WM Limited | Other services | 2019 |
| LK Repairs Ltd | Wholesale & retail | 2025 |
| LKC Properties Limited | Real estate | 2024 |
| LKD GAS Limited | Construction | 2024 |
| LL Sales Ltd | Wholesale & retail | 2026 |
| Llewellen Estate Management Limited | Real estate | 1989 |
| Lloyd House Limited | Real estate | 2007 |
| Lloyd's DRY Lining Limited | Construction | 2002 |
| Lloyds House Limited | Construction | 2024 |
| Lloyds Industrial Roofing & Cladding Ltd | Construction | 2022 |
| Lloyds Inspection Limited | Extraterritorial | 2002 |
| LM Developments Midlands Ltd | Construction | 2019 |
| LM Refrigeration Ltd | Construction | 2024 |
| LMB Services Limited | Other services | 2019 |
| LMS Games Limited | Arts & recreation | 2024 |
| LNH Transport WM Ltd | Transport & logistics | 2025 |
| LNP Sound Limited | Professional & scientific | 2007 |
| Lnr's Property Partners Limited | Real estate | 2023 |
| Lnrs Young Minds CIC | Education | 2026 |
| Loaf & PUB Limited | Hospitality | 2023 |
| Local Deep Cleaners Ltd | Administrative & support | 2025 |
| Local Education and Development Limited | Education | 2013 |
| Local Records Limited | Wholesale & retail | 2025 |
| Lochside Care Limited | Health & social care | 2011 |
| Locke Solutions Ltd | Information & communication | 2025 |
| Lockfit (Bham North) Ltd | Administrative & support | 2023 |
| Lockfit (Walsall) Ltd | Administrative & support | 2024 |
| Locks and Fittings Group Limited | Financial services | 2020 |
| Locks and Fittings Limited | Wholesale & retail | 1986 |
| Lockside Cafe Limited | Hospitality | 2026 |
| Lockside Lettings Ltd | Hospitality | 2026 |
| Lodge Housing CIC | Hospitality | 2017 |
| Loft Boarding Midlands Ltd. | Construction | 2016 |
| Logic Alliance Ltd | Information & communication | 2017 |
| Logic Commercial Ltd | Administrative & support | 2018 |
| Logistic Solutions & Associates Ltd | Professional & scientific | 2020 |
| Logistic-Adu Limited | Transport & logistics | 2019 |
| Logistics & FM Services Ltd | Transport & logistics | 2022 |
| Logistics Direct Ltd | Wholesale & retail | 2025 |
| Logistics Knowledge Group Ltd | Transport & logistics | 2023 |
| Loilecs Electrical Contractors (UK) Limited | Manufacturing | 2014 |
| Lojia Limited | Health & social care | 2003 |
| Loka Events Ltd | Hospitality | 2025 |
| Lokocare Ltd | Health & social care | 2014 |
| Lola's Legacy Ltd | Other services | 2022 |
| London Academy of Vocational Studies Ltd | Education | 2025 |
| London Enterprises Group Ltd | Hospitality | 2024 |
| London Leathergoods Limited | Extraterritorial | 2025 |
| London Midland Railway Clubs Association Walsall Limited | Arts & recreation | 2024 |
| Lonfolkish Ltd | Transport & logistics | 2024 |
| Long & Crawford Limited | Extraterritorial | 2022 |
| Long Controls Limited | Construction | 1995 |
| Longford Group Limited | Manufacturing | 2005 |
| Longlife Buildings Limited | Construction | 1992 |
| Longliv Health Ltd | Other services | 2016 |
| Longnor Hall Development Ltd | Construction | 2021 |
| Longnor Heritage Ltd | Construction | 2020 |
| Longwood Electrical Limited | Construction | 2008 |
| Longwood Tooling Limited | Professional & scientific | 2000 |
| Looby Lou’S Catering Ltd | Hospitality | 2025 |
| Looped Universe Limited | Manufacturing | 2025 |
| Lopon UK Ltd | Transport & logistics | 2023 |
| LOR Mobile Valeting Ltd | Administrative & support | 2026 |
| Lordsway Properties Ltd | Real estate | 2021 |
| Lorenz Ltd | Extraterritorial | 2025 |
| Loshi Entertainment Ltd | Other services | 2025 |
| Lost World Holdings Ltd | Financial services | 2025 |
| Lostkenny Limited | Wholesale & retail | 2026 |
| Lotian Group Ltd | Information & communication | 2020 |
| Lottie's Hair Salon Ltd | Other services | 2023 |
| Lotus Bloom Healthcare Ltd | Health & social care | 2025 |
| Lotus Pharma Ltd | Wholesale & retail | 2023 |
| Loughborough Mobility & Lifestyle Limited | Wholesale & retail | 2006 |
| Louie,S Autos Ltd | Water & waste | 2017 |
| Louk&Ciki Vision Ltd | Health & social care | 2018 |
| Love Lane Decorating Limited | Construction | 2021 |
| Love London Car Sell Ltd | Wholesale & retail | 2025 |
| Love Shopping Direct Group Ltd | Wholesale & retail | 2020 |