| Mushaaf Limited | Education | 2024 |
| Muslika Property Limited | Real estate | 2023 |
| Must BE Sophia Limited | Wholesale & retail | 2023 |
| Mutalib & Sons Limited | Wholesale & retail | 2021 |
| Mutoka’S Healthcare Limited | Health & social care | 2023 |
| Mutti Building Contractors Ltd | Construction | 2017 |
| MV Group Limited | Information & communication | 2023 |
| MVC Essex Ltd | Professional & scientific | 2009 |
| MVP Civil Engineering Ltd | Construction | 2018 |
| MW Care, Training and Consultancy Ltd | Health & social care | 2017 |
| MWM Construction London Limited | Construction | 2015 |
| MWM Constructions Ltd. | Construction | 2015 |
| Mxko Limited | Information & communication | 2024 |
| My African Shop Ltd | Wholesale & retail | 2024 |
| My Build London Limited | Construction | 2015 |
| My Business Place Ltd | Professional & scientific | 2026 |
| My Cleaning Company Limited | Other services | 2017 |
| My Fathers House Ministries Ltd | Administrative & support | 2022 |
| My Father’S House Ltd | Real estate | 2024 |
| My Girls Care Limited | Health & social care | 2025 |
| My KID Genius Ltd | Education | 2017 |
| My Little Peeps Ltd | Wholesale & retail | 2021 |
| My London Residential Ltd | Real estate | 2014 |
| My Rozee PVT Ltd | Wholesale & retail | 2017 |
| My Shop Villa Ltd | Wholesale & retail | 2024 |
| My Sports Hive Ltd | Information & communication | 2026 |
| My&Am Limited | Wholesale & retail | 2015 |
| Myeman Limited | Transport & logistics | 2016 |
| Myemarket Ltd | Wholesale & retail | 2018 |
| Myla's Cafe & Restaurant Limited | Hospitality | 2022 |
| MYM Tiling Ltd | Construction | 2026 |
| Mynet Services Limited | Extraterritorial | 2003 |
| MYR Cleaning Ltd | Other services | 2018 |
| Myriad Systems Limited | Administrative & support | 2021 |
| Mysg Ltd | Administrative & support | 2017 |
| Myth Consultancy Ltd | Wholesale & retail | 2018 |
| Myzain Limited | Professional & scientific | 2014 |
| Mzad Ltd | Real estate | 2017 |
| MZB Traders Limited | Professional & scientific | 2025 |
| N J R Global Traders Limited | Real estate | 2018 |
| N&D Trading Limited | Wholesale & retail | 2026 |
| N&M Construction Ltd | Construction | 2019 |
| N&S Security Ltd | Administrative & support | 2026 |
| N.M.M.M Ltd | Real estate | 2025 |
| N/D BRO Removal Ltd | Transport & logistics | 2023 |
| N2N Systems Ltd | Information & communication | 2012 |
| N2Z Limited | Construction | 2020 |
| Naabi Limited | Administrative & support | 2017 |
| Naafix Limited | Wholesale & retail | 2025 |
| Nabaaf's Driving School Ltd | Education | 2020 |
| Nabak Consult Ltd. | Administrative & support | 2014 |
| Nacent Limited | Transport & logistics | 2021 |
| Nadia Optics Ltd | Wholesale & retail | 2025 |
| Nahal Ltd | Wholesale & retail | 2026 |
| Nahdia Retails Ltd | Wholesale & retail | 2025 |
| NAI Dobroto Ltd | Construction | 2018 |
| Nailstyle Ltd | Other services | 2015 |
| Naimo Ltd | Wholesale & retail | 2024 |
| Nain Direct Limited | Wholesale & retail | 2025 |
| Nain Kitchens and Bedrooms Ltd | Construction | 2024 |
| Naishe Ltd | Administrative & support | 2014 |
| Naisservices Limited | Health & social care | 2022 |
| NAJ Hybrid Limited | Transport & logistics | 2020 |
| Namakulav Services Limited | Health & social care | 2016 |
| Namar Limited | Wholesale & retail | 2016 |
| Nami Construction Ltd | Construction | 2017 |
| Namrata Private Limited | Information & communication | 2024 |
| Nams Enterprises Ltd | Wholesale & retail | 2025 |
| Nana Enterprise Ltd | Other services | 2020 |
| Nana Healthcare Limited | Health & social care | 2023 |
| Nana Services Ltd | Construction | 2017 |
| Nana's Bakeland Ltd | Wholesale & retail | 2025 |
| Nana's Healthcare Limited | Public administration | 2023 |
| Nanak Property Ltd | Real estate | 2023 |
| Nandha Building Services Limited | Construction | 2019 |
| Nandha’S Construction Limited | Construction | 2026 |
| Nanna Biryani Limited | Hospitality | 2025 |
| Nanna Shop UK Ltd | Wholesale & retail | 2026 |
| Naonel Foods UK Limited | Wholesale & retail | 2024 |
| NAP Care Services Ltd | Health & social care | 2026 |
| Narbuild Limited | Construction | 2019 |
| Narmy Insulations Limited | Construction | 2014 |
| Narudi Nyumbani Limited | Professional & scientific | 2020 |
| NAS Construction London Limited | Construction | 2024 |
| Nasat Ltd | Wholesale & retail | 2024 |
| Nash Medics Ltd | Health & social care | 2022 |
| Nasir Alabi Ayoola Limited | Construction | 2017 |
| Naspok T&J Ltd | Construction | 2020 |
| Nasrul-Lahi-Il-Fatih Dagenham UK Ltd | Other services | 2015 |
| Nasu&Finu Ltd | Construction | 2019 |
| Naswil Private Ltd | Wholesale & retail | 2025 |
| Natarp Ltd | Real estate | 2026 |
| National Healthcare Training Limited | Professional & scientific | 2021 |
| National Recovery Operators Club Limited | Other services | 2021 |
| National Supplies Limited | Wholesale & retail | 2021 |
| Nations Financial Service Limited | Financial services | 2023 |
| Nations Recruitment Ltd | Administrative & support | 2019 |
| Nationwide Removals Ltd | Transport & logistics | 2025 |
| Nationwide Sameday Ltd | Transport & logistics | 2019 |
| Natraj Property Services Ltd | Real estate | 2025 |