| Ningbo Runfor Sealing Technology Co., Ltd | Extraterritorial | 2017 |
| Ningbo Saye Home Furniture Co., Ltd | Extraterritorial | 2019 |
| Ningbo SCR Industrial Co., Ltd | Extraterritorial | 2023 |
| Ningbo Shenle Educational Accessory Co., Ltd | Extraterritorial | 2015 |
| Ningbo Shine House International Trading Co., Ltd | Extraterritorial | 2018 |
| Ningbo Shineday Co., Ltd | Extraterritorial | 2021 |
| Ningbo Sun and Moon International Trade Co., Ltd | Extraterritorial | 2025 |
| Ningbo Sun Progifts International Co., Ltd | Extraterritorial | 2018 |
| Ningbo Sunrise Plumbing & Heating Limited | Wholesale & retail | 2024 |
| Ningbo Sure Paper Co., Ltd. | Wholesale & retail | 2022 |
| Ningbo Tianbao Zinc Alloy Products Co Ltd | | 2008 |
| Ningbo Tianyuan Casting Co., Ltd | Manufacturing | 2020 |
| Ningbo Tofoam Crafts Co., Ltd | Extraterritorial | 2022 |
| Ningbo Topo Limited | Extraterritorial | 2012 |
| Ningbo Topway International Co., Ltd | Wholesale & retail | 2023 |
| Ningbo Union Power Machinery Co., Ltd | Manufacturing | 2018 |
| Ningbo Vaneten International Trade Co., Ltd. | Extraterritorial | 2021 |
| Ningbo Vanz Furniture Co., Ltd | Extraterritorial | 2015 |
| Ningbo Voicelab Electronics Co., Ltd. | Wholesale & retail | 2024 |
| Ningbo Warm Lighting Company Limited | Manufacturing | 2014 |
| Ningbo Weiji International Trade Co., Ltd | Wholesale & retail | 2014 |
| Ningbo Xinyang Trade Co., Ltd | Manufacturing | 2020 |
| Ningbo Yechen Industry Co., Ltd | Extraterritorial | 2018 |
| Ningbo Yinzhou Yuhan Import & Export Co., Ltd | Extraterritorial | 2023 |
| Ningbo Yipei Mechanical & Electrical Co., Ltd | Wholesale & retail | 2017 |
| Ningbo Youchen Lighting Co., Ltd | Manufacturing | 2021 |
| Ningbo Yuyang Xingli IMP. & EXP. Co., Ltd. | Extraterritorial | 2023 |
| Ningde Yiyang Electronics Co., Ltd. | Wholesale & retail | 2025 |
| Ninghai Ethan Lighting Technology Co., Ltd | Extraterritorial | 2018 |
| Ninia Ltd | Wholesale & retail | 2023 |
| Ninja Pixel Ltd. | Information & communication | 2018 |
| Ninjakat Studio Ltd | Wholesale & retail | 2025 |
| NIP in Supermarket Ltd | Wholesale & retail | 2024 |
| Nipalf Haulage Ltd | Transport & logistics | 2017 |
| Nirapod Properties Ltd | Real estate | 2025 |
| Nirvaan Investments Ltd | Real estate | 2017 |
| Nirvana People Solutions Ltd | Administrative & support | 2016 |
| NIS Capital Limited | Real estate | 2023 |
| Nish Manek Ltd | Professional & scientific | 2025 |
| Nispro Limited | Extraterritorial | 2010 |
| Nistete Limited | Wholesale & retail | 2024 |
| Nitrous Group Property Limited | Real estate | 2019 |
| Nivedh Foods Limited | Wholesale & retail | 2025 |
| Niyama Ventures Limited | Professional & scientific | 2022 |
| NJ Hayes Limited | Professional & scientific | 2025 |
| NJ Kemp Groundworks Limited | Construction | 2017 |
| NJD Management Limited | Professional & scientific | 2021 |
| NJM Consulting (Cambridge) Limited | Professional & scientific | 2014 |
| NKC Engineering Limited | Real estate | 2019 |
| Nksl Group Limited | Construction | 2026 |
| NLG Airport Transfers Ltd | Transport & logistics | 2015 |
| NM Composites Ltd | Manufacturing | 2025 |
| NM Muzinda Ltd | Real estate | 2020 |
| Nmbr Consulting Limited | Professional & scientific | 2020 |
| NNC Ltd | Construction | 2019 |
| NNM Consulting Limited | Professional & scientific | 2017 |
| NO Bull Limited | Hospitality | 2017 |
| NO Water Just Shine Cambridge Limited | Administrative & support | 2025 |
| NO. 1 Cheveley Road Management Company Limited | Real estate | 2005 |
| NO. 17 Southcote Road Management Company Limited | Households | 1997 |
| NO.1 Recruitment Ltd | Extraterritorial | 2022 |
| NO.15 Brunswick Hill Management Company Limited | Households | 2003 |
| Noble Composites Limited | Manufacturing | 2014 |
| Noble Rose Immigration Service Ltd | Professional & scientific | 2025 |
| Noble Rose Legem Ordinacia Ltd | Administrative & support | 2025 |
| Noble Vitality Enterprise Ltd | Health & social care | 2024 |
| Nobs Ventures Limited | Financial services | 2025 |
| Noctusense Ltd | Professional & scientific | 2013 |
| Node Audio Research Ltd | Manufacturing | 2018 |
| Node Nerds UK Ltd | Information & communication | 2023 |
| Nodes & Links Consulting Limited | Professional & scientific | 2025 |
| Nodes & Links Limited | Information & communication | 2018 |
| NOE Trade Ltd | Wholesale & retail | 2025 |
| Noel Young Wines Ltd | Hospitality | 2017 |
| Noema Signal Labs Ltd | Information & communication | 2026 |
| Noflex Ltd | Wholesale & retail | 2020 |
| Nogravity Ltd | Manufacturing | 2026 |
| NOI E-Com Ltd | Wholesale & retail | 2021 |
| NOIS7 Global Holding Ltd | Financial services | 2026 |
| Noise Solution C.I.C. | Education | 2009 |
| Noisy Oak Ltd | Hospitality | 2022 |
| Noki International Group Investment Limited | Extraterritorial | 2007 |
| Noland Studios Ltd | Information & communication | 2023 |
| Nolojy Ltd | Information & communication | 2017 |
| Noly Limited | Transport & logistics | 2017 |
| Nomad Recruitment Ltd | Administrative & support | 2024 |
| Nomada Hardware Limited | Extraterritorial | 2020 |
| Nomadough Ltd | Hospitality | 2021 |
| Nomoretext Ltd | Information & communication | 2023 |
| Nomád, Cafè With Resonance Ltd | Hospitality | 2023 |
| Non-Cooperative Target Recognition Limited | Professional & scientific | 1987 |
| Nonius.Ai Ltd | Information & communication | 2022 |
| Noooner Limited | Wholesale & retail | 2021 |
| Noor Drive Limited | Education | 2024 |
| NOP Investments Ltd | Real estate | 2019 |
| Norbert Healthcare Ltd | Health & social care | 2023 |
| NORBERT1988 Ltd | Wholesale & retail | 2024 |
| Nord Marine Service Co., Ltd | Manufacturing | 2021 |
| Nord Vaults Limited | Financial services | 2025 |
| Norde Investments Limited | Real estate | 2025 |