| Mysterycorp Limited | Information & communication | 2026 |
| Mystic Beauty and Brow Bar Ltd | Other services | 2024 |
| Mystic Elementals Ltd | Wholesale & retail | 2023 |
| Mysysadmin Ltd | Information & communication | 2011 |
| Mytaxitrip Ltd | Transport & logistics | 2025 |
| Mythical Developments Limited | Information & communication | 1998 |
| Mythical Legends Ltd | Information & communication | 2024 |
| Mythology Ltd | Arts & recreation | 2024 |
| Mytreehood Limited | Agriculture & fishing | 2022 |
| Myvet Recruitment Ltd | Administrative & support | 2018 |
| Myzora Ltd | Wholesale & retail | 2025 |
| MZ Group of Company Limited | Wholesale & retail | 2026 |
| MZ Spice House Ltd | Hospitality | 2025 |
| MZA Structural & Civil Engineering Consultants Ltd | Professional & scientific | 2020 |
| Mzinc Limited | Health & social care | 2010 |
| Mziri Food Ltd | Hospitality | 2025 |
| MZM Managing Company Limited | Extraterritorial | 2007 |
| MZS Homes Ltd | Real estate | 2022 |
| MZS Transport Ltd | Transport & logistics | 2015 |
| MÔR Consultancy Ltd | Administrative & support | 2025 |
| N & a Property Rental Limited | Real estate | 2024 |
| N & B Rigging Limited | Information & communication | 2014 |
| N & C Auto Services Limited | Wholesale & retail | 2009 |
| N & G Biomass Limited | Wholesale & retail | 2009 |
| N & G Spray Plastering Ltd | Construction | 2018 |
| N & H Property Buyers Ltd | Real estate | 2023 |
| N & J Logistics Limited | Transport & logistics | 2018 |
| N & M Ltd | Hospitality | 2018 |
| N & P Asset Management Ltd | Real estate | 2013 |
| N & R Bristol Ltd | Wholesale & retail | 2017 |
| N & S Flooring (Bristol) Limited | Construction | 1981 |
| N & S South West Properties Ltd | Real estate | 2025 |
| N & W Property Limited | Real estate | 2025 |
| N B Equipment Limited | Administrative & support | 2001 |
| N B Transport SW Ltd | Transport & logistics | 2018 |
| N H Couriers Bristol Limited | Transport & logistics | 2013 |
| N Hinder & Sons Ltd | Wholesale & retail | 2012 |
| N Hyde Ltd | Information & communication | 2009 |
| N J Business Consulting Ltd | Administrative & support | 2015 |
| N K Controls Ltd | Construction | 2026 |
| N K S Contracts Limited | Construction | 1998 |
| N M Automotive Limited | Wholesale & retail | 2019 |
| N P Civils Limited | Construction | 2014 |
| N P Gibbons Limited | Agriculture & fishing | 2011 |
| N Pitt Power Ltd | Energy | 2002 |
| N R a Electrical Limited | Construction | 2007 |
| N R Glass and Glazing Ltd | Manufacturing | 2019 |
| N S Optics Limited | Health & social care | 2016 |
| N Sport Limited | Wholesale & retail | 2016 |
| N Square Consulting Services Limited | Professional & scientific | 2018 |
| N Squared Investments Limited | Professional & scientific | 2023 |
| N T Hancock Roofing Contractor Ltd | Construction | 2026 |
| N V Eyecare Ltd | Wholesale & retail | 2021 |
| N W Upvc Windows and Door Services South West Limited | Construction | 2018 |
| N&B Foods Bristol Ltd | Wholesale & retail | 2026 |
| N&H Bristol Ltd | Real estate | 2024 |
| N&H Partners Ltd | Wholesale & retail | 2025 |
| N&J Business Limited | Hospitality | 2025 |
| N&K Assets Ltd | Real estate | 2022 |
| N&M Carpentry Ltd | Manufacturing | 2024 |
| N&N Ranjalvi Limited | Transport & logistics | 2026 |
| N&P Power Solutions Limited | Manufacturing | 2007 |
| N&R Automotive Repair & Storage Ltd | Wholesale & retail | 2023 |
| N&T Fast Foods UK Ltd | Hospitality | 2021 |
| N-E-W-D-I-L-E Ltd | Wholesale & retail | 2020 |
| N. G. W Food Ltd | Hospitality | 2020 |
| N. J. Building Ltd. | Construction | 2003 |
| N. Lomvardos & Sons Limited | Hospitality | 2015 |
| N. Reed Consultancy Ltd | Professional & scientific | 2024 |
| N.A.N Distribution Ltd | Construction | 2018 |
| N.B.C. Construction Limited | Construction | 2004 |
| N.H.H. Management Company Limited | Households | 2011 |
| N.I.B Design & Build Ltd | Construction | 2022 |
| N.J. Trailer Services Limited | Wholesale & retail | 2007 |
| N.L.H Investments Ltd | Financial services | 2013 |
| N.V.Bags & Accessories Limited | Wholesale & retail | 2000 |
| N2M Limited | Wholesale & retail | 2016 |
| N2M Precast Fixing Limited | Construction | 2026 |
| N3ST Ltd | Real estate | 2021 |
| N54 Ltd | Administrative & support | 2019 |
| NA Sala Studios INK Ltd | Arts & recreation | 2025 |
| NA Worldwide Ltd | Wholesale & retail | 2023 |
| Naadac Uk&Europe - for Addiction Professionals Ltd | Extraterritorial | 2021 |
| Naanandco Ltd | Hospitality | 2023 |
| Nabari Ltd | Information & communication | 2014 |
| Nabla X Ltd | Extraterritorial | 2019 |
| Naborczyk Ltd | Wholesale & retail | 2018 |
| Nachoproperty Ltd | Households | 2025 |
| Nacsw Limited | Health & social care | 2014 |
| NAD / Quest Ltd | Wholesale & retail | 2015 |
| Nada Wakeford Care Consultancy Ltd | Professional & scientific | 2026 |
| Nadbury Estates Limited | Real estate | 2025 |
| Nadealitraders Ltd | Wholesale & retail | 2026 |
| Nadean Holdings Ltd | Financial services | 2019 |
| Nadines Caribbean Cafe and Takeawy Ltd | Hospitality | 2025 |
| Nadira Enterprises Limited | Financial services | 1985 |
| Nadoo Ltd | Professional & scientific | 2020 |
| NAE Group Limited | Wholesale & retail | 2022 |
| Naeem Lettings Ltd | Real estate | 2016 |
| Naeume Limited | Information & communication | 2019 |