| Nononsense (Group) Ltd | Construction | 2011 |
| Nononsense International Limited | Financial services | 2025 |
| Nononsense Stages Ltd | Construction | 2022 |
| Nononsense Staging Limited | Construction | 2015 |
| Noodlr Studio Ltd | Information & communication | 2026 |
| Noods Levels CIC | Arts & recreation | 2020 |
| Noods Radio Ltd | Information & communication | 2019 |
| Noogle Property Ltd | Real estate | 2022 |
| Nook Architects and Build Ltd | Construction | 2025 |
| Nook Contractors Ltd | Construction | 2025 |
| Nook FOX & West Limited | Wholesale & retail | 2021 |
| Nook Lettings Ltd | Real estate | 2024 |
| Nook POD Ltd | Administrative & support | 2016 |
| Nooklab Ltd | Professional & scientific | 2026 |
| Nooli Technology UK Limited | Health & social care | 2023 |
| Nooli UK Limited | Information & communication | 2016 |
| Noonie Earth Limited | Wholesale & retail | 2021 |
| Noor and Children Limited | Real estate | 2021 |
| Noor Catering Ltd | Hospitality | 2024 |
| Noor Design & Build Ltd | Construction | 2025 |
| Noor E Haram Tours Ltd | Administrative & support | 2025 |
| Noor Foods Limited | Hospitality | 2025 |
| Noor International Food Ltd | Wholesale & retail | 2025 |
| Noor Khan Estates Ltd | Real estate | 2026 |
| Noor Technologies Limited | Information & communication | 2024 |
| Noorbadeenafghan Limited | Wholesale & retail | 2026 |
| Noorjahan Bristol Ltd. | Hospitality | 2006 |
| Noots Nutrition Ltd | Manufacturing | 2024 |
| Nor-Ray-Vac Spares Online Ltd | Wholesale & retail | 2022 |
| Norah Films Ltd | Information & communication | 2019 |
| Norco Aesthetics Ltd | Other services | 2021 |
| Nordco Ltd | Manufacturing | 2001 |
| Nordea Dental Limited | Health & social care | 2015 |
| Nordesign Studio Ltd | Extraterritorial | 2021 |
| Nordic Botanics Ltd | Wholesale & retail | 2018 |
| Nordic Premium Limited | Extraterritorial | 2012 |
| Nordic Wristbands UK Limited | Wholesale & retail | 2026 |
| Nordicus Domus Capital Limited | Real estate | 2023 |
| Nordwestco Ltd | Manufacturing | 2013 |
| Norewood Grove Management Company Limited | Households | 1982 |
| Norfolk Properties (Bristol) Limited | Hospitality | 2014 |
| Norm Automotive Ltd | Wholesale & retail | 2024 |
| Normal Girl Productions Ltd | Information & communication | 2024 |
| Norman Associates Ltd | Professional & scientific | 2026 |
| Normas Cleaning Services Limited | Administrative & support | 2025 |
| Normec Compliance UK Limited | Financial services | 2024 |
| Normec Environmental Testing Limited | Financial services | 2023 |
| Normec Holding UK Limited | Financial services | 2023 |
| Norris & Partners Limited | Information & communication | 2022 |
| Norris Riley Furniture Limited | Manufacturing | 2020 |
| Norsa Limited | Information & communication | 2007 |
| Norsail Ltd | Professional & scientific | 2024 |
| Norsk Hydro Employee Trust Limited | Professional & scientific | 1987 |
| Nortech Computers & Printing Ltd | Wholesale & retail | 2025 |
| Nortey Limited | Health & social care | 2021 |
| North & Letherby Limited | Real estate | 2014 |
| North Bradley Auto Ltd | Wholesale & retail | 2025 |
| North Bristol Brickwork Ltd | Construction | 2021 |
| North Bristol Conversions Ltd | Construction | 2025 |
| North Bristol Cooling & Heating Ltd | Construction | 2024 |
| North Bristol Flooring Ltd | Construction | 2019 |
| North Bristol Management Limited | Real estate | 2004 |
| North Bristol Plumbing Supplies Limited | Wholesale & retail | 2010 |
| North Bristol RFC Limited | Arts & recreation | 2016 |
| North Bristol RFC Trading Limited | Arts & recreation | 2016 |
| North Bristol Room Rentals Ltd | Real estate | 2021 |
| North Bristol SUS COM Limited | Professional & scientific | 2012 |
| North Bristol Window Services Limited | Construction | 2020 |
| North BS3 Limited | Real estate | 2024 |
| North Corner (Southville) Management Company Limited | Households | 2006 |
| North Devon Orthodontic Centre Limited | Health & social care | 2009 |
| North East Consulting Limited | Professional & scientific | 2025 |
| North ELM Farm | | 1994 |
| North Hill Hotel Limited | Hospitality | 2005 |
| North Hill Partnership LLP | | 2010 |
| North Midlands Properties Limited | Professional & scientific | 1967 |
| North Paddocks Management Company Limited | Real estate | 2020 |
| North Peaks Roofing and Building Ltd | Construction | 2025 |
| North Road Motors Ltd | Wholesale & retail | 2022 |
| North Somerset Agricultural Society | Other services | 1990 |
| North Somerset Flooring Ltd | Wholesale & retail | 2025 |
| North Somerset Footwear Ltd | Wholesale & retail | 2026 |
| North Somerset GAS Services Limited | Construction | 2011 |
| North Somerset Metal and Cable Recycling Ltd | Wholesale & retail | 2013 |
| North Somerset Pest Solutions Ltd | Other services | 2019 |
| North South Ventures Ltd | Real estate | 2024 |
| North Star Academy Trust | Education | 2020 |
| North Star Engagement Ltd | Real estate | 2019 |
| North Street Education Limited | Education | 2022 |
| North Street Gallery CIC | Wholesale & retail | 2019 |
| North Street Holdings Limited | Financial services | 2021 |
| North Street Manco Ltd | Households | 2021 |
| North Street Shawarma Ltd | Hospitality | 2024 |
| North Trade House LP | | 2011 |
| North View Pharmacy Limited | Wholesale & retail | 2005 |
| North West Auto Engineering Limited | Wholesale & retail | 2015 |
| North Wiltshire Schools Limited | Administrative & support | 2000 |
| Northacre Consulting Limited | Information & communication | 2024 |
| Northampton Battery Storage Limited | Energy | 2024 |
| Northavon Blinds Limited | Manufacturing | 2017 |