| Naturally Pure Animal Feeds Limited | Wholesale & retail | 2024 |
| Naturally Revitalised Ltd. | Wholesale & retail | 2021 |
| Nature and Health Practitioners CIC | Health & social care | 2020 |
| Nature Based Climate Solutions Limited | Professional & scientific | 2022 |
| Nature Connection CIC | Professional & scientific | 2020 |
| Nature Made Nutritional Products EU, Ltd | Extraterritorial | 2006 |
| Nature Makers Collective CIC | Health & social care | 2025 |
| Nature NOW Consultancy Limited | Professional & scientific | 2024 |
| Nature Picture Library Limited | Professional & scientific | 2001 |
| Nature Picture Library Trustee Limited | Professional & scientific | 2023 |
| Nature Queerdos CIC | Education | 2024 |
| Nature Youth Connection and Education CIC | Education | 2019 |
| Nature's Spectacular Limited | Hospitality | 2021 |
| Nature+ Ltd | Professional & scientific | 2022 |
| Naturebreak Ltd | Information & communication | 2021 |
| Natures Blends Ltd | Extraterritorial | 2026 |
| Natures Theory Ltd | Wholesale & retail | 2026 |
| Natureworks Training Community Interest Company | Education | 2000 |
| Naturya Limited | Manufacturing | 2010 |
| Natwen Stays Ltd | Hospitality | 2025 |
| Nauclerius Ltd | Information & communication | 2013 |
| Nautica Management Company Limited | Households | 2007 |
| Nautical Ltd. | Real estate | 2001 |
| Nautilus Electrics Ltd | Construction | 2021 |
| Navado Talent Limited | Administrative & support | 2020 |
| Naval Design Limited | Professional & scientific | 2007 |
| Navarat Well Being Limited | Wholesale & retail | 2018 |
| Navdurga Limited | Wholesale & retail | 2018 |
| Naveed Shahzad Ltd | Wholesale & retail | 2025 |
| Navid CUT Limited | Other services | 2024 |
| Navigate Agency Limited | Professional & scientific | 2005 |
| Navigate Public Estate Consulting Limited | Professional & scientific | 2025 |
| Navigator Building RTM Co Limited | Households | 2023 |
| Navigator Systems Limited | Information & communication | 1995 |
| Navigator US Limited | Administrative & support | 2021 |
| Navos Technologies Ltd | Information & communication | 2020 |
| Navratilova Limited | Wholesale & retail | 2023 |
| Navy Build Ltd | Construction | 2024 |
| Navy Construction Ltd | Construction | 2025 |
| Nawathe Consulting Ltd | Professional & scientific | 2013 |
| Nawman Travels and Tours UK Ltd | Administrative & support | 2026 |
| Nawroz Super Market Ltd | Wholesale & retail | 2025 |
| Naylon Consulting Ltd | Professional & scientific | 2024 |
| Nayrat LP | | 2013 |
| NAZ Iscan Creative Limited | Arts & recreation | 2026 |
| NAZ Project Solutions Ltd | Professional & scientific | 2023 |
| NAZ72 Ltd | Transport & logistics | 2024 |
| Nazareth Flats Management Co. Limited | Households | 1974 |
| Nazifa Catering Bristol Limited | Hospitality | 2023 |
| Nazirite Ltd | Manufacturing | 2026 |
| NB Air Advertising UK Ltd | Transport & logistics | 2025 |
| NB Beautiful Aesthetics & Beauty Ltd | Other services | 2022 |
| NB Driver Training Limited | Education | 2013 |
| NB Electrical & Building Services Limited | Construction | 2023 |
| NB Essentials Limited | Wholesale & retail | 2026 |
| NB Plumbing & Heating Bristol Ltd | Construction | 2015 |
| NBC Environment Ltd | Administrative & support | 1997 |
| NBG Bristol Limited | Construction | 2024 |
| NBN Decorators Ltd | Extraterritorial | 2024 |
| Nbros LLP | | 2011 |
| NBS Innotech Ltd | Professional & scientific | 2015 |
| NBS Productions Limited | Arts & recreation | 2025 |
| Nbsa Project Limited | Real estate | 2002 |
| NBT Limited | Transport & logistics | 2014 |
| NCA Render Limited | Construction | 2024 |
| NCG Group Holdings Limited | Financial services | 2021 |
| NCW Properties Ltd | Real estate | 2025 |
| NCW Roofing Limited | Construction | 2018 |
| NCW Solutions Ltd | Information & communication | 2008 |
| ND Advisory Limited | Professional & scientific | 2014 |
| ND Fruit & VEG Ltd | Wholesale & retail | 2026 |
| ND Harris Consultancy Limited | Information & communication | 2023 |
| ND Home Developments Ltd | Other services | 2025 |
| ND Real Estates Limited | Real estate | 2026 |
| NDC Transport Ltd | Transport & logistics | 2023 |
| Ndey and Yandeh Limited | Health & social care | 2020 |
| Ndfs Pension Trust Limited | Financial services | 2004 |
| NDL Solutions Limited | Professional & scientific | 2009 |
| NDM Property Limited | Households | 2024 |
| Ndmt Limited | Manufacturing | 2004 |
| Ndor Corporation Ltd | Wholesale & retail | 2024 |
| NDREU2000 Limited | Wholesale & retail | 2024 |
| NDS Consult Ltd | Information & communication | 2026 |
| NDS Trading & Co (Bristol) Ltd | Wholesale & retail | 2017 |
| NDT Logistic Ltd | Transport & logistics | 2021 |
| NDT Properties Ltd | Real estate | 2018 |
| NE Appliances Limited | Wholesale & retail | 2023 |
| Neagle & Company Limited | Professional & scientific | 1995 |
| Neakers Ltd | Wholesale & retail | 2020 |
| Neal Street Property Limited | Real estate | 2026 |
| Nearest Cleaners Limited | Administrative & support | 2026 |
| Nearhuman Ltd | Manufacturing | 2024 |
| Neary Medical Limited | Health & social care | 2016 |
| Neat Property Group Ltd | Real estate | 2023 |
| Neat Therapies Ltd | Health & social care | 2024 |
| Neate Construction Limited | Wholesale & retail | 2002 |
| Neath Bathrooms Ltd | Construction | 2023 |
| Neath Raisbeck Golding Law Limited | Professional & scientific | 2005 |
| Neatrix Ltd | Administrative & support | 2024 |
| Neave Employment Limited | Administrative & support | 1973 |