| Lucas Studio Limited | Professional & scientific | 2012 |
| Ludlow Property Ventures Ltd | Real estate | 2026 |
| Lureclothing Ltd | Wholesale & retail | 2024 |
| Luxury Inclusive Travel Limited | Administrative & support | 2018 |
| M and S Bishop Limited | Administrative & support | 2010 |
| M Autoworks Ltd | Wholesale & retail | 2021 |
| M E M Electrical Limited | Construction | 2016 |
| M-O-8 Specialities Limited | Manufacturing | 2000 |
| M.A Plastering & Rendering Services Ltd | Construction | 2025 |
| M.I.S. Networks Limited | Information & communication | 1995 |
| M.J. LOW & Sons (Brickwork) Limited | Extraterritorial | 1963 |
| MA2 Consultants Ltd | Professional & scientific | 2014 |
| Mabbott Properties Limited | Real estate | 2019 |
| Magic Moments (Kempsey) Limited | Health & social care | 2021 |
| Magicnest Limited | Transport & logistics | 1983 |
| Magnumcrates Ltd | Administrative & support | 2019 |
| Mahoney Holdings Limited | Financial services | 2022 |
| Maitlands (GB) Limited | Manufacturing | 2004 |
| Makerbrew Ltd | Manufacturing | 2025 |
| Makergroup Ltd | Manufacturing | 2023 |
| Making Special Places Ltd | Information & communication | 2020 |
| Makrfilm Ltd | Information & communication | 2025 |
| Malvhina Property Limited | Real estate | 2021 |
| MAN Civils Ltd | Construction | 2014 |
| Manage MED Limited | Professional & scientific | 2023 |
| Manek Managing Company Limited | Real estate | 2023 |
| Mangopare Management Limited | Professional & scientific | 2024 |
| Manor House Restorations Limited | Wholesale & retail | 2015 |
| Marc and Neil Properties Ltd | Real estate | 2025 |
| Mare & Domus Charters Limited | Transport & logistics | 2026 |
| Marhamchurch Ltd | Transport & logistics | 2022 |
| Mark Hartshorne Limited | Professional & scientific | 2003 |
| Marlow Plastic Surgery Ltd | Real estate | 2017 |
| Marray Thoroughbred Services Ltd | Information & communication | 2014 |
| Marshalls Transport (Evesham) Limited | Transport & logistics | 1986 |
| Mason Estates Holdings Limited | Households | 2024 |
| Massive Logo Ltd | Wholesale & retail | 2022 |
| Mathias Machinery Ltd | Construction | 2018 |
| Mathry Ltd | Transport & logistics | 2022 |
| Matt Haines Heating & Plumbing Limited | Construction | 2008 |
| Maudenomatter Ltd | Administrative & support | 2020 |
| Mccarthy Taylor Consulting Limited | Professional & scientific | 1999 |
| Mccarthy Taylor Trustees Ltd | Professional & scientific | 1999 |
| Mcfarl . B Ltd | Professional & scientific | 2004 |
| MCT Tech Limited | Information & communication | 2019 |
| MDS & Sons Hospitality Ltd | Hospitality | 2024 |
| Mechanical & Pipework Fabrications Limited | Manufacturing | 1977 |
| Mechanical & Pipework Holdings Limited | Financial services | 2009 |
| MEDIA52 Limited | Administrative & support | 2005 |
| Memory Lane Memorials Limited | Manufacturing | 2015 |
| Mepheran Ltd | Wholesale & retail | 2018 |
| Metal Mesh UK Limited | Manufacturing | 2008 |
| Metalslive Limited | Information & communication | 2020 |
| Mhoirtainn Ltd | Transport & logistics | 2021 |
| MIA Sports Technology Limited | Arts & recreation | 2007 |
| Michiko Pearls Ltd | Wholesale & retail | 1993 |
| Microbiotech Ltd | Agriculture & fishing | 2017 |
| Midgluedock Ltd | Administrative & support | 2018 |
| Miles Renovations Ltd | Construction | 2023 |
| Milestone Accounting Ltd | Professional & scientific | 2015 |
| Minebreaker Ltd | Wholesale & retail | 2018 |
| Minterburn Gundogs Ltd | Agriculture & fishing | 2009 |
| Mirabelle (Pershore Road) Management Company Limited | Households | 2021 |
| Miserygrimoire Ltd | Hospitality | 2019 |
| MJ Page & Partners LLP | | 2020 |
| MJD Production Ltd | Professional & scientific | 2016 |
| MJH Fabrications Ltd | Manufacturing | 2002 |
| MJS24 Limited | Other services | 2024 |
| MJU Designs Ltd | Professional & scientific | 2012 |
| MKO Group Ltd | Financial services | 2026 |
| ML Newton Ltd | Wholesale & retail | 2022 |
| Mobile Solutions Evesham Limited | Other services | 2020 |
| Mobileno Limited | Wholesale & retail | 2025 |
| Modern Law Limited | Professional & scientific | 2015 |
| Molyneux Marine Ltd | Manufacturing | 2021 |
| Mondedor Ltd | Wholesale & retail | 2018 |
| Monkburg Ltd | Transport & logistics | 2019 |
| Monkeytravel Ltd | Transport & logistics | 2019 |
| Monomore Limited | Wholesale & retail | 2018 |
| Monteamist Ltd | Administrative & support | 2024 |
| Morgan Russell Aviation Ltd | Manufacturing | 2019 |
| Morwenna Cottage LLP | | 2025 |
| Moseley & SON Ltd | Wholesale & retail | 2017 |
| Motorail (Long Marston) Limited | Transport & logistics | 2026 |
| Motorail (UK) Holdings Limited | Transport & logistics | 2021 |
| Mousehouse Gifts Ltd | Wholesale & retail | 2012 |
| MRQ Landscapes Ltd | Administrative & support | 2016 |
| MS Electrical Trust Limited | Other services | 2025 |
| Murphy London Limited | Construction | 2014 |
| Musicstander Ltd | Wholesale & retail | 2019 |
| MW Refrigeration Services Limited | Construction | 2024 |
| Mystic Eagle Ltd | Health & social care | 2013 |
| Mzuri Limited | Manufacturing | 1992 |
| Nafford Residents Property Management Limited | Households | 2016 |
| NAH Property Holdings UK Limited | Financial services | 2017 |
| Najihzy Ltd | Administrative & support | 2023 |
| Nanaimo Brands Limited | Manufacturing | 2018 |
| ND Powell Consultancy Limited | Professional & scientific | 2017 |
| Needham Market Ltd | Wholesale & retail | 2022 |
| Nestcave Ltd | Administrative & support | 2019 |