| NHA MOR Mark Ltd | Hospitality | 2025 |
| NI Composites Ltd | Manufacturing | 2018 |
| Ni.Mar Consultancy & Services Ltd | Professional & scientific | 2015 |
| NIA Nova Ltd | Manufacturing | 2001 |
| Niab EMR | Agriculture & fishing | 2015 |
| Niab Pension Trustees Limited | Financial services | 2018 |
| Niab Trading Ltd | Agriculture & fishing | 2010 |
| Niab Trust Developments Ltd | Construction | 2017 |
| Niab. | Agriculture & fishing | 1997 |
| Nibbio Beans Ltd | Wholesale & retail | 2026 |
| Nibs Limited | Administrative & support | 1982 |
| Nica Logistics Limited | Transport & logistics | 2026 |
| Nica Real Estates Ltd | Real estate | 2024 |
| Nice Day Technology Limited | Information & communication | 2025 |
| Nice Shot Spirits (UK) Ltd | Manufacturing | 2023 |
| Nice Stay Ltd | Hospitality | 2017 |
| Nicely Lives Group Ltd | Wholesale & retail | 2024 |
| Niceway Manufacturer Ltd | Manufacturing | 2026 |
| Nicewin Textile Co., Ltd | Manufacturing | 2011 |
| Nichar Ltd | Real estate | 2021 |
| Nichola Wilkin Ltd. | Education | 2013 |
| Nicholas Browne Limited | Extraterritorial | 2025 |
| Nicholas Michael Limited | Administrative & support | 2016 |
| Nicholas Phillips Architects Ltd | Professional & scientific | 2017 |
| Nick Baynes Property Consulting Limited | Real estate | 2009 |
| Nick Drive Ltd | Transport & logistics | 2025 |
| Nick Richardson Marine Composites Limited | Manufacturing | 2017 |
| Nick T Wallace Ltd. | Construction | 2007 |
| Nicoara Painted Skies Ltd | Manufacturing | 2023 |
| Nicola Stewart DC Limited | Administrative & support | 2024 |
| Nicolae Predescu Ltd | Manufacturing | 2024 |
| Nicolas MOTORSPORT,F1,AEROSPACE Ltd | Manufacturing | 2026 |
| Nicole Perry Ellis Coaching and Consulting Ltd | Professional & scientific | 2026 |
| Nicolescu Ltd | Manufacturing | 2025 |
| Nicos Overseas Import and Export Co., Ltd | Manufacturing | 2017 |
| Niculae Aviation Ltd | Manufacturing | 2025 |
| Nicusor Poenar Ltd | Manufacturing | 2025 |
| Nierkesi Innovate Ltd | Manufacturing | 2025 |
| Nieto Aviation Ltd | Manufacturing | 2025 |
| Night PLU5 Entertainment Ltd | Administrative & support | 2026 |
| Night PLU5 Group Ltd | Hospitality | 2026 |
| Nightingale Avenue Limited | Professional & scientific | 2015 |
| Nightingale Shott Residents Association Ltd. | Households | 1999 |
| Nihira Ltd | Wholesale & retail | 2026 |
| Niki International Trade Ltd. | Extraterritorial | 2023 |
| Nikkin Co., Ltd | Extraterritorial | 2016 |
| Nikkou Limited | Hospitality | 2022 |
| NIKO789 Ltd | Transport & logistics | 2026 |
| Nikola-Landau Tradings Ltd | Wholesale & retail | 2019 |
| Nikoloulis Aero. Ltd | Manufacturing | 2024 |
| Niks Enterprises Limited | Wholesale & retail | 2014 |
| Nilaboo Ltd | Professional & scientific | 2019 |
| Nile Software Consultancy Ltd | Wholesale & retail | 2019 |
| Nimapro Ltd | Real estate | 2025 |
| Nimbus Environmental Consulting Ltd | Professional & scientific | 2020 |
| Nine (Cambridge) Management Company Limited | Households | 2022 |
| Nine Electric Development Co., Ltd. | Other services | 2021 |
| Nine Lives Communications Ltd | Professional & scientific | 2025 |
| Nine Wells Block Management Company Limited | Households | 2015 |
| Nine Wells Estate Management Company Limited | Households | 2015 |
| Nine Yarners Ltd | Information & communication | 2023 |
| Nineswell Limited | Professional & scientific | 2023 |
| Nineteen TEN Ltd | Wholesale & retail | 2024 |
| Ninewells Limited | Professional & scientific | 2022 |
| Ningbo Baiyue Sports & Leisure Goods Co., Ltd | Extraterritorial | 2015 |
| Ningbo Biji MFG Co., Ltd | Wholesale & retail | 2016 |
| Ningbo Chenmei Packaging Technology Co., Ltd | Wholesale & retail | 2024 |
| Ningbo CJT Catering Equipment Co., Ltd | Wholesale & retail | 2024 |
| Ningbo Deluxe Crafts Co., Ltd | Extraterritorial | 2020 |
| Ningbo Dingfeng Industrial Co., Limited | Wholesale & retail | 2024 |
| Ningbo E&J International Trade Co., Ltd | Wholesale & retail | 2024 |
| Ningbo E-Best International Co., Ltd | Manufacturing | 2016 |
| Ningbo E-Star Co., Ltd | Extraterritorial | 2021 |
| Ningbo Grass Lighting Co., Ltd. | Wholesale & retail | 2016 |
| Ningbo Haishu Baiwell Electric Appliance Co., Ltd | Extraterritorial | 2020 |
| Ningbo Haitian Industrial Co., Ltd | Extraterritorial | 2019 |
| Ningbo Hijun Shipping Co., Ltd | Transport & logistics | 2023 |
| Ningbo Hulk Home Deco Co., Ltd | Extraterritorial | 2015 |
| Ningbo Hungsun Household Co., Ltd | Wholesale & retail | 2023 |
| Ningbo Investment Casting Co., Ltd | Manufacturing | 2018 |
| Ningbo Joyous-Me Co., Ltd | Wholesale & retail | 2019 |
| Ningbo Joystar Tools Co., Limited | Wholesale & retail | 2024 |
| Ningbo Junan Resources Co., Ltd. | Extraterritorial | 2012 |
| Ningbo Junxing Industry & Trading Co., Ltd | Extraterritorial | 2014 |
| Ningbo Kaikai Stationery Co., Ltd | Manufacturing | 2020 |
| Ningbo Keli-Tex Import & Export Co., Ltd | Manufacturing | 2018 |
| Ningbo Langsun Audio Co., Ltd. | Extraterritorial | 2013 |
| Ningbo Lomlux Lighting Co., Ltd | Manufacturing | 2018 |
| Ningbo Long FLY Trade Co., Ltd | Manufacturing | 2017 |
| Ningbo LU WEI Industrial Co., Ltd | Manufacturing | 2018 |
| Ningbo Mantong Electrical Appliances Co., Ltd | Wholesale & retail | 2025 |
| Ningbo Metalwire Trade Co., Ltd. | Wholesale & retail | 2023 |
| Ningbo Newkind Home Care Co., Limited | Extraterritorial | 2019 |
| Ningbo Ningchou Shipping Co., Ltd | Extraterritorial | 2022 |
| Ningbo Oasis Garden Products Co., Limited | Manufacturing | 2026 |
| Ningbo OPK Hydraulics Co., Ltd. | Extraterritorial | 2019 |
| Ningbo Ourlite Electric Appliance Co., Ltd | Manufacturing | 2019 |
| Ningbo Protek Industrial & Trading Co., Limited | Extraterritorial | 2023 |
| Ningbo Purwater Electrical Appliance Co., Ltd | Extraterritorial | 2020 |
| Ningbo Relaxing Outdoors Co., Ltd | Wholesale & retail | 2024 |