| Lockwood Pictures Limited | Information & communication | 2020 |
| Lococoche Limited | Extraterritorial | 2009 |
| Lodge Park Residents Social Club | Hospitality | 2026 |
| Loft Ladders Midlands Ltd | Manufacturing | 2021 |
| Logic Comms Limited | Administrative & support | 2011 |
| Logiwheel Delivery Services Ltd | Transport & logistics | 2025 |
| Logs & Wood Redditch Ltd | Wholesale & retail | 2024 |
| London Emblem Limited | Administrative & support | 2003 |
| London Emblem Promotional Ltd | Wholesale & retail | 2024 |
| London Hackney CAB Company Limited | Administrative & support | 2021 |
| Lonsdale Social Care Ltd | Health & social care | 2021 |
| Loop Language Services Ltd | Professional & scientific | 2022 |
| Lords Lane 29-35 Limited | Households | 2016 |
| Lostinfab Limited | Manufacturing | 2023 |
| Lott Express Ltd | Transport & logistics | 2026 |
| Lotus Hot Tubs Ltd | Manufacturing | 2023 |
| Louis Mews Limited | Real estate | 2023 |
| Louna Properties (Warwickshire) Limited | Real estate | 1972 |
| Love Growth Network CIC | Education | 2025 |
| Love Your Floor Commercial Limited | Construction | 2023 |
| Love Your Floor LLP | | 2023 |
| Lovell & Field Ltd | Construction | 2008 |
| Lower Berrow Cottages Limited | Hospitality | 2017 |
| Lower Park Industrial Units Limited | Administrative & support | 2018 |
| Lowesmoor Regeneration Limited | Construction | 2018 |
| Loxley Consulting Limited | Information & communication | 2019 |
| Loxstone Build Ltd | Construction | 2026 |
| LP Movements Limited | Transport & logistics | 2023 |
| LSD Accountants Limited | Professional & scientific | 2007 |
| Lucern Solar C.I.C. | Energy | 2015 |
| Lucid Computer Solutions Ltd | Information & communication | 2008 |
| Lucky House Redditch Ltd | Hospitality | 2024 |
| Lucy Barry Design Ltd | Professional & scientific | 2019 |
| Luff Engineering Limited | Manufacturing | 2006 |
| Luhira Limited | Other services | 2022 |
| Luke Cascarini Ltd | Health & social care | 2012 |
| Luke Daniel Sales Consultancy Ltd | Education | 2024 |
| Luke Preece Design & Illustration Ltd | Arts & recreation | 2018 |
| Luxan Auto Works Ltd | Wholesale & retail | 2025 |
| Luxora Collectives Ltd | Wholesale & retail | 2026 |
| Luxowia Limited | Wholesale & retail | 2026 |
| LWS Engineering Ltd | Manufacturing | 2024 |
| Lydf Limited | Hospitality | 2022 |
| Lyndon & Co Antiques Limited | Wholesale & retail | 2022 |
| Lynns GEM Creations Limited | Manufacturing | 2022 |
| Lynton Commercial Holdings Limited | Extraterritorial | 2016 |
| Lyonwear Ltd | Wholesale & retail | 2025 |
| Lyric Limited | Health & social care | 1998 |
| M & a Williams Ltd | Real estate | 2022 |
| M & C Painting and Decorating Ltd | Construction | 2022 |
| M & D Group Midlands Limited | Construction | 2001 |
| M & D Robin Hood Road Limited | Real estate | 2024 |
| M & D Roofing (Redditch) Limited | Construction | 2002 |
| M & G (Redditch) Limited | Education | 2015 |
| M & J Coatings [B'Ham] Limited | Manufacturing | 2011 |
| M & L Civil Engineering Limited | Construction | 1996 |
| M & M Turned Parts Limited | Manufacturing | 2008 |
| M & R Films Limited | Information & communication | 2012 |
| M & R Griffin Properties Ltd | Real estate | 2024 |
| M & R Lettings Limited | Real estate | 2014 |
| M & S Social Care Consultancy Ltd | Health & social care | 2023 |
| M & T Beams Ltd | Administrative & support | 2024 |
| M & V Models (OUR Place) Ltd | Wholesale & retail | 2024 |
| M a Taylor Engineering Limited | Manufacturing | 2003 |
| M Bird Properties Limited | Real estate | 2021 |
| M D Transport Limited | Transport & logistics | 2009 |
| M E Food Developments Limited | Professional & scientific | 2019 |
| M G Stainless Limited | Manufacturing | 1996 |
| M H Kitchen Solutions Ltd | Construction | 2012 |
| M I E Construction Ltd | Construction | 2020 |
| M J Farmer Limited | Construction | 2015 |
| M Jones Pipework Services Limited | Construction | 2006 |
| M P Gibbs Ltd | Construction | 2019 |
| M P Wood Groundworks Ltd | Construction | 2019 |
| M Phillips Engineering Limited | Professional & scientific | 2015 |
| M R Hammond Electrical Services Limited | Construction | 2009 |
| M S Removals (UK) Limited | Transport & logistics | 2021 |
| M T Plumbing & Heating Limited | Construction | 2002 |
| M&B Paving Ltd | Administrative & support | 2025 |
| M&D Pipework Services Limited | Construction | 2015 |
| M&G Risk Management Ltd | Professional & scientific | 2025 |
| M&H Property Services Limited | Real estate | 2026 |
| M&J Projects Limited | Professional & scientific | 2022 |
| M&L Holloway Holdings Ltd | Professional & scientific | 2026 |
| M&S Fletcher Properties Ltd | Real estate | 2021 |
| M. Fitzgerald Brickworks Limited | Construction | 2002 |
| M.C.D Plumbing and Heating Limited | Construction | 2015 |
| M.D.M. Packaging Machinery Limited | Manufacturing | 1999 |
| M.E.P Carpentry & Joinery Limited | Manufacturing | 2026 |
| M.J. Davies Management Associates Ltd. | Professional & scientific | 1995 |
| M.J.A. Plant Services Limited | Manufacturing | 2005 |
| M.Lawrence Roofing Solutions Ltd | Construction | 2018 |
| M.T.P. Laser Limited | Professional & scientific | 1985 |
| M2 Holdings Ltd | Financial services | 2024 |
| MAC Property Projects Limited | Real estate | 2022 |
| Macdonald Surfacing Limited | Financial services | 2020 |
| Macenzie Developments Ltd | Real estate | 2022 |
| Machine Design & Control Limited | Manufacturing | 2003 |
| Machined Component Systems Limited | Manufacturing | 1986 |
| Mackenzie Tools and Productions Limited | Manufacturing | 1940 |