| Monchique Limited | Wholesale & retail | 2002 |
| Monmouth Keep Management Company Limited | Households | 2004 |
| Montague Point Management Company Limited | Households | 2021 |
| Monterey Place Residents Management Company Limited | Households | 2003 |
| Montpelier Court (Bristol) Management Limited | Households | 2002 |
| Montycorn Ltd | Wholesale & retail | 2020 |
| Monument House Management Company Limited | Households | 2020 |
| Monyhull Grange Management Company Limited | Households | 2004 |
| Moor Park (Cheriton Bishop) Management Company Limited | Households | 2017 |
| Moorcrest Mews Management Company Limited | Households | 2022 |
| Moorland Reach Plymouth Number Two Management Company Limited | Households | 2006 |
| Moorland Vale (Bodmin) Management Company Limited | Households | 2018 |
| More Place Management Company Limited | Households | 2018 |
| Moreteyne Park Management Limited | Households | 2016 |
| Morgan Court Management Company (Churchlands) Limited | Real estate | 2021 |
| Mortimers Gate Residents Management Company Ltd | Real estate | 2017 |
| Mosaics Management Company Limited | Households | 2017 |
| Moulden View Amenity Areas Management Company Limited | Households | 2010 |
| Moulden View Apartments Management Company Limited | Households | 2016 |
| Mount Lake House Management Company Ltd | Households | 2023 |
| Mount Wise Living Limited | Households | 2010 |
| Moving Food Ltd | Wholesale & retail | 2004 |
| Mpower Partners LLP | | 2010 |
| MR and MRS Making IT Happen Ltd | Agriculture & fishing | 2020 |
| MR Lease Limited | Wholesale & retail | 2014 |
| Mulberry Grove (Wokingham) Management Company Limited | Households | 2014 |
| Mulberry Lodge (Apartments) Management Company Limited | Households | 2012 |
| Mulberry Lodge (Houses) Management Company Limited | Households | 2013 |
| Mulberry View (Wokingham) Management Company Limited | Households | 2017 |
| Mulholland House Ltd | Real estate | 2022 |
| Mulholland IT Limited | Information & communication | 2018 |
| Multicore Dynamics Limited | Professional & scientific | 2015 |
| Mungo Horn Limited | Wholesale & retail | 2020 |
| Murat 05 Ltd | Real estate | 2025 |
| Murray & Hayward Limited | Real estate | 2011 |
| MWS Holdings Ltd | Education | 2021 |
| N B P Accounting Solutions Limited | Professional & scientific | 2016 |
| N.E. Horley Resident Management Company Limited | Households | 2008 |
| N.V. Chichester Limited | Administrative & support | 1977 |
| Nag's Head Management Limited | Households | 1993 |
| Namyllus Ltd | Construction | 2025 |
| Nanterre Court RTM Company Limited | Households | 2014 |
| Natbot Consulting Limited | Professional & scientific | 2022 |
| Native Mind Ltd | Health & social care | 2025 |
| Needleworx Ltd | Construction | 2025 |
| Netherton Grange Resident's Management Company Limited | Households | 2021 |
| Netherwood (Darfield) Management Company Limited | Households | 2022 |
| Netreasure Limited | Wholesale & retail | 2012 |
| Netscion Limited | Information & communication | 1997 |
| New Church Town Management Company Limited | Households | 2020 |
| New Forest Alehouses Limited | Hospitality | 2016 |
| New Forest Autocentre Ltd. | Wholesale & retail | 2017 |
| New Forest Bird Foods Ltd | Wholesale & retail | 2023 |
| New Forest Care Homes Ltd | Health & social care | 2014 |
| New Forest Chilli Farm Ltd | Wholesale & retail | 2025 |
| New Forest Company Secretary Limited | Professional & scientific | 2015 |
| New Forest Country Sports Ltd | Wholesale & retail | 2024 |
| New Forest Dyslexia Ltd | Education | 2020 |
| New Forest Fires and Chimneys Ltd | Construction | 2025 |
| New Forest Mencap | Health & social care | 1989 |
| New Forest Mindfulness Ltd | Health & social care | 2018 |
| New Forest Morphs Limited | Wholesale & retail | 2020 |
| New Forest PAT Testing Limited | Professional & scientific | 2025 |
| New Forest Polo Club Limited | Arts & recreation | 2021 |
| New Forest Psychiatry Limited | Health & social care | 2022 |
| New Forest Signs Ltd | Professional & scientific | 2025 |
| New Forest Solar PV Limited | Construction | 2022 |
| New Forest Stationers Limited | Wholesale & retail | 2009 |
| New Forest Tech Market Ltd | Administrative & support | 2026 |
| New Horizons Management Company Limited | Households | 2010 |
| New Milton 57 Management Limited | Households | 2017 |
| New Milton Beau Court Limited | Households | 1972 |
| New Milton Cars Ltd | Transport & logistics | 2025 |
| New Milton Concrete Limited | Manufacturing | 2002 |
| New Milton Electrical Centre Ltd | Wholesale & retail | 2017 |
| New Milton Foot Clinic Ltd. | Health & social care | 2012 |
| New Milton Glass Co Limited | Wholesale & retail | 2003 |
| New Milton International Stores Ltd | Wholesale & retail | 2018 |
| New Milton Logistics Limited | Transport & logistics | 2019 |
| New Milton Town Football Club Ltd | Arts & recreation | 2026 |
| New River Village Residents Company Limited | Households | 2003 |
| New Street (Measham) Residents Management Company Limited | Households | 2021 |
| Newcomen Fields (Stoke Fleming) Management Company Limited | Households | 2013 |
| Newtons of Ashley Ltd | Wholesale & retail | 2013 |
| Newtons Place (Grantham) Management Company Limited | Households | 2017 |
| Next Route EV Ltd | Transport & logistics | 2026 |
| NG Foods Limited | Wholesale & retail | 2020 |
| Nicholas Gardens (Cippenham) Management Company Limited | Households | 1998 |
| Nick Keep Associates Limited | Administrative & support | 2017 |
| Nick Keep Ltd | Professional & scientific | 2023 |
| Nightingale Court (Romsey) Management Company Limited | Households | 2014 |
| Nightingale Fold (Steeple Claydon) Management Limited | Households | 2017 |
| Nightingale Series Limited | Extraterritorial | 2015 |
| Niveus Walk Management Company Limited | Households | 2022 |
| NO Problems Electrical Ltd | Construction | 2021 |
| Norris & Binglewort Ltd | Hospitality | 2021 |
| North & South Grange Exeter Freehold Management Company Limited | Households | 2012 |
| North Filton Management Company Limited | Households | 2019 |
| North Greenlands Management Company Limited | Households | 2011 |
| North Grove Management Company Limited | Households | 2015 |