| Munatsi Limited | Construction | 2024 |
| Muncaster Limited | Professional & scientific | 2019 |
| Munro Ross Limited | Construction | 2018 |
| Murcap Limited | Other services | 2011 |
| Murelon | Professional & scientific | 2026 |
| Murray Joinery Limited | Construction | 2006 |
| Mushi Supermarket Ltd | Wholesale & retail | 2025 |
| Musical Mates (North East) Ltd | Education | 2026 |
| Mustard Investments Ltd | Arts & recreation | 2025 |
| Mutapa Enterprises Ltd | Agriculture & fishing | 2020 |
| MV Anderson Ltd | Education | 2026 |
| MV Group PUB PAY Company Ltd | Hospitality | 2025 |
| MVS Wigan Limited | Wholesale & retail | 2018 |
| MW3 Ltd | Extraterritorial | 2020 |
| MWP Engineering Ltd. | Information & communication | 2015 |
| My Beauty Lounge Ltd | Other services | 2023 |
| My Conservatory Roof Ltd | Construction | 2020 |
| My Conservatory Roof Replacement Ltd | Construction | 2016 |
| My Future Counts Ltd | Education | 2022 |
| My Independent Midwife Ltd | Health & social care | 2022 |
| My Life Legacy | Health & social care | 2012 |
| My Plans Online Limited | Professional & scientific | 2013 |
| My Private Holding Ltd | Financial services | 2018 |
| My Skin and Hair by Dara Ltd | Wholesale & retail | 2024 |
| My Smart Global Ltd | Information & communication | 2026 |
| My Windows & Doors Ltd | Construction | 2016 |
| Mycade Ltd | Wholesale & retail | 2020 |
| Myers Trading Ltd | Wholesale & retail | 2023 |
| Mymed Aesthetics Limited | Wholesale & retail | 2026 |
| Mytac Holdings Ltd | Financial services | 2013 |
| MYX Holdings Limited | Construction | 2022 |
| Mzgeneralcleaning Ltd | Administrative & support | 2025 |
| N & a Edwards Limited | Extraterritorial | 2006 |
| N & K Training Limited | Education | 2016 |
| N & N Express Ltd | Transport & logistics | 2021 |
| N & T Appliance Repairs Limited | Other services | 2020 |
| N B R Engineering Limited | Construction | 2017 |
| N J Patel Limited | Real estate | 2016 |
| N Johnston Plant & Groundworks Limited | Construction | 2014 |
| N L Logistics Limited | Transport & logistics | 2008 |
| N&Aremovals&Storage Ltd | Transport & logistics | 2019 |
| N&I Developments Ltd | Real estate | 2022 |
| N&S Fresh 1 Limited | Hospitality | 2011 |
| N&S Fresh 3 Ltd | Hospitality | 2018 |
| N&S Fresh 4 Ltd | Hospitality | 2018 |
| N&S Wigan Ltd | Hospitality | 2026 |
| N-Lightenment Associates Ltd | Professional & scientific | 2015 |
| N. & E.Houses Limited | Extraterritorial | 1963 |
| N.I.C. Catering Ltd | Wholesale & retail | 2008 |
| N.I.C.E.E. Ltd | Information & communication | 2001 |
| N.R.L. Group Limited | Professional & scientific | 1991 |
| N.R.L. Limited | Administrative & support | 1982 |
| N.T.S. (North West) Limited | Wholesale & retail | 2001 |
| N.W. Bodyshop Supplies Ltd | Wholesale & retail | 2002 |
| Na&Sa Ltd | Education | 2024 |
| Naburn Holdings Limited | Real estate | 2024 |
| Nail & Beauty Rooms (Orrell) Ltd | Other services | 2013 |
| Naish & Co Consultancy Ltd | Professional & scientific | 2026 |
| Nalabenlas Ltd | Professional & scientific | 2026 |
| Nali AA Ltd | Wholesale & retail | 2025 |
| Nanabe Ltd | Wholesale & retail | 2022 |
| Nandalan Medical Limited | Health & social care | 2016 |
| Naneros | Professional & scientific | 2025 |
| NAS Products Limited | Wholesale & retail | 2020 |
| Naskat Ltd | Professional & scientific | 2019 |
| Natalia Shvarts Ltd | Professional & scientific | 2023 |
| Nataron | Professional & scientific | 2026 |
| Nathan Samuel Limited | Real estate | 2007 |
| Nathan Whyte Ltd | Health & social care | 2025 |
| National Accident Management Group Limited | Professional & scientific | 2024 |
| National Fibre Limited | Information & communication | 2020 |
| Nationwide Car Keys Ltd | Wholesale & retail | 2023 |
| Nationwide Construction Personnel & Plant Hire Solutions Ltd | Construction | 2018 |
| Nationwide Contracts UK Limited | Professional & scientific | 2001 |
| Nationwide Interiors Ltd | Construction | 2023 |
| Nationwide Sales and Tenancy Limited | Real estate | 2026 |
| Nationwide Tax Shops Wigan Limited | Professional & scientific | 2025 |
| Natty Homes PVT Ltd | Construction | 2026 |
| Natural Health Organisation | Health & social care | 2018 |
| Naturally Wicked Ltd | Wholesale & retail | 2020 |
| Naturegain Limited | Real estate | 2013 |
| Navigate Next Limited | Information & communication | 2021 |
| Navigation Property Letting Limited | Real estate | 2023 |
| NB Liquidation Ltd | Other services | 2025 |
| NBD Construction Limited | Construction | 2023 |
| NBR Reporting Limited | Wholesale & retail | 2021 |
| NBS Electrical Services Limited | Construction | 2013 |
| NC Cladding Services Ltd | Construction | 2023 |
| NC Dynamic Haulage Ltd | Transport & logistics | 2024 |
| NCC Services North-West Ltd | Construction | 2021 |
| NCJ Properties Ltd | Real estate | 2024 |
| ND Nails Beauty Ltd | Other services | 2023 |
| Ndaa Limited | Information & communication | 2019 |
| Neal Kitson Properties Ltd | Real estate | 2025 |
| Nebula Health and Social Limited | Health & social care | 2026 |
| Nectarfine Limited | Real estate | 1978 |
| Nectarine Health Solutions Limited | Health & social care | 2020 |
| Needsva | Professional & scientific | 2023 |
| Negesu | Professional & scientific | 2023 |
| Neil Berry Landscaping & Building Ltd | Construction | 2011 |