| Monet Web Ltd | Administrative & support | 2015 |
| Money Chap Ltd | Financial services | 2012 |
| Money Directions Limited | Financial services | 2006 |
| Money Everywhere Limited | Health & social care | 2025 |
| Money for Furniture Ltd | Other services | 2024 |
| Money-Matters Education & Wellbeing CIC | Education | 2026 |
| Moneybox(Bournemouth) Limited | Financial services | 2024 |
| Moneypenny & Tuffrey Limited | Information & communication | 2025 |
| Moneytron Limited | Professional & scientific | 2019 |
| Monikaffee Limited | Hospitality | 2008 |
| Monkton Court Residents Association Limited | Households | 1996 |
| Monkton Heights Management Company Limited | Households | 1987 |
| Monopoly 17 Limited | Households | 2016 |
| Montagu 23 Limited | Real estate | 2022 |
| Montague Court Freehold Limited | Households | 2007 |
| Montague Court Lansdowne Management Company Limited | Households | 1996 |
| Montana Bournemouth Ltd | Households | 2007 |
| Montara Freehold Limited | Real estate | 2015 |
| Monterey Bournemouth Ltd | Households | 2006 |
| Monterolle Properties Limited | Real estate | 2006 |
| Monthly Advance Loans Limited | Financial services | 2019 |
| Montivo Limited | Real estate | 2025 |
| Montpellier Land and Developments Limited | Construction | 2016 |
| Monument Facility Services Limited | Administrative & support | 2014 |
| Mood Interior Solutions Limited | Construction | 2015 |
| Mood Stories Designs Ltd | Wholesale & retail | 2021 |
| Moom Ltd | Manufacturing | 2016 |
| Moonaxe Limited | Financial services | 2020 |
| Moonfleet Property Management Ltd | Households | 2025 |
| Moonraker Design Limited | Wholesale & retail | 2015 |
| Moonshine Cleaning Ltd | Administrative & support | 2011 |
| Moonshot Labs Ltd | Information & communication | 2019 |
| Moor Lane Launderette Ltd | Administrative & support | 2019 |
| Moordown Building Services Ltd | Construction | 2012 |
| Moordown GAS Ltd | Construction | 2015 |
| Moordown Hall Limited | Real estate | 2025 |
| Moordown PRE School Limited | Education | 2012 |
| Moordown ST John's Church of England Primary School | Education | 2015 |
| Moore Yachts Limited | Administrative & support | 2004 |
| Mooreland Retail Ltd | Wholesale & retail | 2023 |
| Moorend Hall (Bournemouth) Limited | Households | 1992 |
| Moorland Dwellings Ltd | Real estate | 2024 |
| Moorland Estate Agents Ltd | Real estate | 2023 |
| Moorland Housing Ltd | Real estate | 2026 |
| Moorland Investments Limited | Real estate | 2020 |
| Moorland Property Ltd | Real estate | 2022 |
| Moorland Property Rentals Ltd | Real estate | 2023 |
| Moorland Retail Ltd | Wholesale & retail | 2014 |
| Moorlands Management (Bournemouth) Limited | Households | 1989 |
| Moorside Precision Limited | Other services | 1996 |
| Moose and Mason Limited | Hospitality | 2026 |
| Moose Skateshop Ltd | Wholesale & retail | 2018 |
| MOR Lodge Limited | Real estate | 2017 |
| Moray Court Limited | Households | 1985 |
| Morden Estates Company Limited | Real estate | 1922 |
| More Globalsales Ltd | Wholesale & retail | 2023 |
| More Property Ltd | Real estate | 2010 |
| More Than Homes Ltd | Administrative & support | 2018 |
| More Than Strong Ltd | Arts & recreation | 2022 |
| More-Sec-Netw Ltd | Administrative & support | 2016 |
| MORE2 Holdings Limited | Financial services | 2015 |
| MORE2 Limited | Professional & scientific | 2002 |
| Morebags Ltd | Water & waste | 2026 |
| Moreco Ltd | Construction | 2011 |
| Morejet Tech Ltd | Professional & scientific | 2016 |
| Morelec (UK) Ltd | Construction | 2001 |
| Morelec Solutions Ltd | Construction | 2008 |
| Morelife Vision Ltd | Arts & recreation | 2017 |
| Moreno Limited | Wholesale & retail | 2024 |
| Moreton Trustees Limited | Administrative & support | 2015 |
| Morfose Barber BH9 Ltd | Other services | 2024 |
| Morgan Design Studio Limited | Professional & scientific | 2011 |
| Morgan Legacy Ltd | Real estate | 2025 |
| Morning Developments Limited | Construction | 2019 |
| Morning Runner Coffee (Boscanova) Ltd | Hospitality | 2018 |
| Morning Runner Coffee Ltd | Hospitality | 2017 |
| Mornington Court Management Limited | Households | 1973 |
| Morris Construct Limited | Construction | 2009 |
| Morris Court (Bournemouth) Limited | Households | 1973 |
| Morris Plumbing & Heating Limited | Construction | 2010 |
| Morris Property & Hospitality Ltd | Hospitality | 2022 |
| Morris Snell Property LLP | | 2020 |
| Morrison Carpets Limited | Construction | 2003 |
| Morrison Financial Associates Limited | Financial services | 2015 |
| Mortgage Intelligence Limited | Financial services | 1995 |
| Mortgage Next Network Limited | Financial services | 2003 |
| Mortgageapplytec Limited | Information & communication | 2014 |
| Mortgagesourcetec Limited | Information & communication | 2014 |
| Morweb Ltd | Financial services | 2015 |
| Mosquito Music Ltd | Information & communication | 2017 |
| Moss Ninja Limited | Administrative & support | 2021 |
| Moss OFF Roof (Regional) Ltd | Administrative & support | 2024 |
| Moss OFF Roof Franchise Ltd | Professional & scientific | 2025 |
| Moss OFF Roof Ltd | Administrative & support | 2020 |
| Moss Rock Initiatives LLP | | 2021 |
| Moss Rock Limited | Real estate | 2021 |
| Mostays Ltd | Hospitality | 2022 |
| Mostunit Limited | Real estate | 1987 |
| Mostyns Factory Shops Limited | Professional & scientific | 1999 |
| Motabitz Accessories Limited | Wholesale & retail | 1987 |