| Mossco Properties Limited | Real estate | 1988 |
| Mossy Print Ltd | Manufacturing | 2023 |
| Motorcycle Magic Ltd | Wholesale & retail | 2010 |
| Motorquip Ltd | Construction | 2026 |
| Mouldtech Solutions Limited | Manufacturing | 2009 |
| Mount Braddon Mews (Torquay) Ltd | Households | 2002 |
| Mount Stuart Maintenance Limited | Households | 2014 |
| Mount Vernon Residents 2017 Ltd | Households | 2017 |
| Move Different Dept Limited | Real estate | 2026 |
| Move Southwest Ltd | Transport & logistics | 2019 |
| Movearch Limited | Households | 1985 |
| Moza Caters Ltd | Wholesale & retail | 2025 |
| Moza Spice Ltd | Wholesale & retail | 2022 |
| MPG Enterprises Limited | Wholesale & retail | 2004 |
| MR Carlos and MRS Wendy Dominguez Limited | Real estate | 2018 |
| MR Foxs Garden Ltd | Administrative & support | 2019 |
| MR Punch 247 Ltd | Wholesale & retail | 2020 |
| MRP Software Ltd | Information & communication | 2025 |
| MS Music Publishing Ltd | Arts & recreation | 2015 |
| Mudgeville Limited | Real estate | 2024 |
| Mulberry House (Torquay) RTM Company Limited | Households | 2023 |
| Multivan T5 Limited | Wholesale & retail | 2017 |
| Munyuam Limited | Health & social care | 2015 |
| Murphy & White Accountancy Ltd | Professional & scientific | 2012 |
| Music Masterclass Ltd | Extraterritorial | 2017 |
| Music Video Ltd | Wholesale & retail | 2023 |
| Musker Properties Limited | Real estate | 2019 |
| MWH Forward Build Ltd | Real estate | 2025 |
| My Amazing ME Limited | Education | 2019 |
| My Business Assistant Ltd | Information & communication | 2026 |
| My Claim Solved Limited | Financial services | 2011 |
| My Claims Solved.Com Limited | Financial services | 2011 |
| My Dolce Derma Ltd | Wholesale & retail | 2022 |
| My Wellbeing Healthcare Limited | Hospitality | 2026 |
| MYA Rose Limited | Manufacturing | 2016 |
| Mycofilter Limited | Professional & scientific | 2024 |
| Mydebtssolved.Com Limited | Financial services | 2010 |
| Myers CDM (Torquay) Limited | Professional & scientific | 2024 |
| N DE Souza Limited | Construction | 2015 |
| N Dillon Electrics Ltd | Construction | 2018 |
| N I Property Limited | Real estate | 2022 |
| N J M South West Ltd | Wholesale & retail | 2013 |
| N-Jsecurity Ltd | Administrative & support | 2024 |
| Narracotts Architecture Ltd | Professional & scientific | 2003 |
| Natalie's Holidays for YOU Ltd | Administrative & support | 2026 |
| Nataliya Robinson Academy Ltd | Education | 2023 |
| National Floors Ltd | Water & waste | 2010 |
| Nationwide Propertybank Limited | Real estate | 2005 |
| Nautilus Marine Inspections Ltd | Transport & logistics | 2018 |
| Naxpa Limited | Wholesale & retail | 2021 |
| NCO Consultancy Ltd | Professional & scientific | 2015 |
| NDS Reinforcements Ltd | Manufacturing | 2016 |
| Nearly Weds Ltd | Information & communication | 2019 |
| Nectarine Group Limited | Professional & scientific | 2023 |
| Neettukattu Limited | Health & social care | 2020 |
| Neighbourhood Capital Ltd | Financial services | 2023 |
| Neil Tucker Van Services Limited | Wholesale & retail | 2008 |
| Neil Wilson Accountancy Limited | Professional & scientific | 2001 |
| Neil Wilson Payroll & Book-Keeping Services Limited | Professional & scientific | 2005 |
| Nekton Hydrography Ltd | Professional & scientific | 2019 |
| Neon Solution Ltd | Administrative & support | 2025 |
| Neptune Residential Ltd | Real estate | 2017 |
| Nessland Limited | Households | 1984 |
| NET Green Innovations Ltd | Construction | 2024 |
| NET Rewards Holdings Ltd | Information & communication | 2019 |
| Nethway Ltd | Hospitality | 2019 |
| Neurospine Specialists Limited | Health & social care | 2013 |
| New Build Ideas Limited | Construction | 2023 |
| New Esplanade Court RTM Limited | Households | 2010 |
| New Road (Brixham) Management Company Ltd | Other services | 2007 |
| Newcomen House Limited | Households | 2005 |
| Newhall Livery Limited | Agriculture & fishing | 2015 |
| Newroch Ltd | Professional & scientific | 2017 |
| Newspoint Limited | Real estate | 1998 |
| Newtake House Management Company NO. 2 Limited | Households | 1995 |
| Newton Abbot Enterprises Ltd | Hospitality | 2025 |
| Newton Hall Management Association Limited | Real estate | 1982 |
| Next GENERATION09 Ltd | Wholesale & retail | 2025 |
| Nextjoint Limited | Real estate | 1990 |
| NGB Structural Ltd | Professional & scientific | 2022 |
| Ngula Trading Ltd | Professional & scientific | 2025 |
| NH Legacy Developments Ltd Limited | Construction | 2026 |
| NI ONI Limited | Wholesale & retail | 2017 |
| NIB Consulting Ltd | Professional & scientific | 2010 |
| NIB Shared Vision Ltd | Professional & scientific | 2019 |
| Nicetown Property Management Limited | Households | 1987 |
| Nick and Hris Ltd | Construction | 2020 |
| Nick Webb Landscapes Limited | Administrative & support | 2012 |
| Nickwake (SW) Limited | Administrative & support | 2022 |
| Nicola Darwin Ecology Ltd | Professional & scientific | 2020 |
| Nigel Denning Ltd | Health & social care | 2013 |
| Nightingales Management (Torquay) Limited | Households | 2018 |
| Nikki Mcclarron Ltd | Professional & scientific | 2019 |
| Nirvana Homes (UK) Holdings Limited | Extraterritorial | 2013 |
| Nirvana Homes (UK) Limited | Construction | 1984 |
| NJM Electrical Services Ltd | Construction | 2018 |
| Nlast Ltd | Professional & scientific | 2024 |
| NLW Property Services Limited | Real estate | 2024 |
| NMP Management Limited | Administrative & support | 2014 |
| NNU Limited | Hospitality | 2009 |