| Lune Valley Padel Ltd | Arts & recreation | 2025 |
| Lune Valley Pods Ltd | Manufacturing | 2020 |
| Lune Valley Properties Ltd | Real estate | 2021 |
| Lune Valley Pubs Ltd | Hospitality | 2018 |
| Lune Valley Rooms Ltd | Hospitality | 2021 |
| Lunesdale Decorators Limited | Construction | 2001 |
| Lunesdale Equine Limited | Agriculture & fishing | 2020 |
| Lunesdale Escapes Ltd. | Hospitality | 2020 |
| Lunesdale Landscape and Garden Maintenance Limited | Other services | 2003 |
| Lunesdale Limited | Real estate | 2017 |
| Lunesdale SLI Limited | Professional & scientific | 2021 |
| Lunevalleypods&Lodges Ltd | Manufacturing | 2025 |
| Lunsdale Limited | Hospitality | 2024 |
| Luxuria Auto UK Limited | Wholesale & retail | 2023 |
| LV Fitness Studio Ltd | Arts & recreation | 2023 |
| Lvtb Holdings Ltd | Financial services | 2021 |
| M & S Blease Limited | Agriculture & fishing | 2008 |
| M a C (NW) Limited | Real estate | 2007 |
| M C Pearcy Limited | Construction | 2002 |
| M J Bird & SON Limited | Wholesale & retail | 2007 |
| M J Carr Groundwork Limited | Construction | 2015 |
| M Mcguire Plumbing and Heating Ltd | Construction | 2021 |
| M&W Restaurant and Takeaway Limited | Hospitality | 2023 |
| M. G. (Antiques) Limited | Wholesale & retail | 2003 |
| M.C. Weasel Limited | Construction | 2002 |
| Macaw (Bootle) Management Company Ltd | Households | 2022 |
| Macfarlane and Co. Limited | Professional & scientific | 2002 |
| Mailer Associates Ltd | Professional & scientific | 2014 |
| Mainline Pharma Limited | Wholesale & retail | 2025 |
| Mains of Taymouth Ltd | Hospitality | 2022 |
| Make Bold Choices CIC | Education | 2025 |
| Malloncrest Limited | Real estate | 1978 |
| Manchester Anglers' Association Limited | Agriculture & fishing | 2022 |
| Mani Barber Ltd | Other services | 2021 |
| MAP Regional Services Ltd | Transport & logistics | 2025 |
| Mark Barton Building Services Ltd | Construction | 2019 |
| Mark Cowperthwaite Coaching Limited | Education | 2026 |
| Marketing Travel Limited | Administrative & support | 2019 |
| Marquees & Teepees, Killington Limited | Administrative & support | 2012 |
| Marrocco Homes Ltd | Construction | 2019 |
| Martec Environmental Consultants Limited | Professional & scientific | 2003 |
| Martin Harris Plumbing & Heating Limited | Construction | 2005 |
| Martins Industries UK Ltd | Financial services | 2021 |
| Matt Young Translations Limited | Professional & scientific | 2013 |
| Mcguire Property Group Ltd | Real estate | 2025 |
| Mcguires Essentials Ltd | Wholesale & retail | 2026 |
| Meathop Grange Panopticon Limited | Households | 1993 |
| MED27 Barbers Ltd | Other services | 2023 |
| MEI Choo Associates Limited | Professional & scientific | 2025 |
| Melbreck Technical Recruitment Limited | Administrative & support | 2012 |
| Meliora Property Management Limited | Real estate | 2022 |
| Melling Motorhomes Ltd | Administrative & support | 2019 |
| Mesa Vent Ltd | Manufacturing | 2024 |
| Metcalfe Project Solutions Ltd | Professional & scientific | 2025 |
| MHY Electrical Services Limited | Construction | 2021 |
| Michael Mcdaid Roofing Limited | Construction | 2014 |
| Michael Murphy Joiners and Builders Ltd | Manufacturing | 2024 |
| Michael Whitaker Limited | Construction | 2021 |
| Millennium Gold Limited | Wholesale & retail | 2002 |
| Mills Luxury Cottages Ltd | Real estate | 2021 |
| Mindstead Training Ltd | Education | 2026 |
| Mirror Mirror (Milnthorpe) Ltd | Other services | 2022 |
| Mizone Consulting Limited | Administrative & support | 2013 |
| MJ Forster Haulage Limited | Professional & scientific | 2011 |
| MJ Hardwick Limited | Manufacturing | 2003 |
| ML Concrete Ltd | Manufacturing | 2026 |
| Mobility Products Limited | Wholesale & retail | 2006 |
| Molly and the Band Limited | Financial services | 2013 |
| Molly Warburton Ltd | Information & communication | 2018 |
| MOO Media Limited | Administrative & support | 2015 |
| Moon Staffing Ltd | Administrative & support | 2022 |
| Moose&Mouse Ltd | Hospitality | 2023 |
| Morecambe Bay Primary Care Collaborative Community Interest Company | Health & social care | 2015 |
| Morgan & Wolfe Limited | Extraterritorial | 2012 |
| Motobambino Limited | Wholesale & retail | 2013 |
| Mount Wellington Management Company Limited | Households | 2002 |
| MP Controls Limited | Information & communication | 2006 |
| Mpiling Limited | Wholesale & retail | 2013 |
| MT Ginger Developments Limited | Construction | 2025 |
| Mulholland Building Services Limited | Professional & scientific | 2018 |
| Mulholland Group Ltd | Professional & scientific | 2022 |
| Multi-Opt Limited | Professional & scientific | 2006 |
| Musiclinks Limited | Education | 2009 |
| N D Plumbing & Heating (NW) Ltd | Construction | 2017 |
| N Dawson Ltd | Other services | 2022 |
| National Renewables Group Ltd | Construction | 2023 |
| Natland Caravan Park Holidays Limited | Hospitality | 2013 |
| Natural Fibre Research & Innovation Ltd | Agriculture & fishing | 2024 |
| Neil Oldfield Limited | Administrative & support | 2021 |
| Nelson Court Management Company (Arnside) Limited | Households | 2003 |
| Nesh LMS Limited | Wholesale & retail | 2020 |
| Newmac Limited | Professional & scientific | 2006 |
| Nexus Components Limited | Wholesale & retail | 2010 |
| Niche Accounting Limited | Professional & scientific | 2018 |
| Nicholson Hall Advisory Limited | Professional & scientific | 2013 |
| Nicholson Trailers Limited | Manufacturing | 2007 |
| Nics & Co Laser Limited | Other services | 2022 |
| NJB Building & Roofing Limited | Construction | 2016 |
| Nomadic Solutions Ltd | Construction | 2022 |
| Nookdales Ltd | Health & social care | 2024 |