| New Kent Cash and Carry Ltd | Wholesale & retail | 2024 |
| New Landle Technology Co., Ltd | Wholesale & retail | 2018 |
| New Medway Steam Packet Company Limited(The) | Transport & logistics | 1987 |
| New Rose Mill Limited | Professional & scientific | 2018 |
| New Season Cash and Carry Ltd | Wholesale & retail | 2023 |
| New Shipa Limited | Hospitality | 2019 |
| New Silk Road International Trade Co., Ltd. | Wholesale & retail | 2021 |
| New Stour & Avon Magazine Ltd | Information & communication | 2020 |
| New Swift Styles Ltd | Wholesale & retail | 2025 |
| Newborn Treasures Photography Ltd | Professional & scientific | 2021 |
| Newbreeders Ltd | Health & social care | 2019 |
| Newham Lifts & Escalators Limited | Manufacturing | 2025 |
| Newlands Mogul Limited | Construction | 2023 |
| Newlands Plantation Ltd | Agriculture & fishing | 2025 |
| Newnham Construction Limited | Construction | 2003 |
| Nexaura Limited | Information & communication | 2013 |
| Nexgen Venture Ltd | Wholesale & retail | 2025 |
| Next Generation Power Services Ltd | Construction | 2020 |
| Next Level Elevators Ltd | Professional & scientific | 2019 |
| Next Level Enterprise Ltd | Wholesale & retail | 2020 |
| Next Level Procurement Ltd | Administrative & support | 2026 |
| Next Steps Initiatives | Arts & recreation | 2019 |
| Next World Services Ltd | Health & social care | 2019 |
| Nextgen Driving Lessons Limited | Education | 2025 |
| Nextila Essentials Limited | Wholesale & retail | 2025 |
| Nextphase Trading Ltd | Wholesale & retail | 2025 |
| NGB Mechanical Services Limited | Professional & scientific | 2026 |
| Nhac Properties Limited | Real estate | 2000 |
| NHG23 Limited | Professional & scientific | 2023 |
| Niazian Ltd | Wholesale & retail | 2023 |
| Nibaz Metals Limited | Mining & quarrying | 2024 |
| Nichcom Limited | Information & communication | 2016 |
| Nicola Finch Properties Limited | Real estate | 2014 |
| Nicolae Fieraru Ltd | Health & social care | 2019 |
| Nicole's Knitting Knack Ltd | Manufacturing | 2022 |
| Nikins Healthcare Ltd | Health & social care | 2023 |
| Nikoda Care Services Ltd | Health & social care | 2018 |
| Nikola Komitov Ltd | Transport & logistics | 2011 |
| Nimbofy Ltd | Wholesale & retail | 2025 |
| Ningbo Bana International Trade Co., Limited | Extraterritorial | 2014 |
| Ningbo Bluebull Packing Material Co., Ltd | Manufacturing | 2023 |
| Ningbo Flyers Leisure & Sporting Co., Ltd | Extraterritorial | 2017 |
| Ningbo Kingsun Hose Clamp Limited | Professional & scientific | 2018 |
| Ningbo Lucky Zone Ltd. | Wholesale & retail | 2019 |
| Ningbo Qianjing Sanitary Ware Co., Ltd | Manufacturing | 2018 |
| Ningbo Snowaves Mechanical Equipment Co., Ltd | Manufacturing | 2018 |
| Nirvan Projects Limited | Administrative & support | 2009 |
| Nitch Limited | Construction | 2020 |
| NJG Design Limited | Professional & scientific | 2016 |
| NK Security Solutions Ltd | Construction | 2024 |
| NKL Electrical Services Limited | Energy | 2021 |
| NKL Fire Limited | Construction | 2019 |
| NKP Solutions Limited | Professional & scientific | 2009 |
| NLB Driving Ltd | Transport & logistics | 2026 |
| NO Sky Enterprise Ltd | Information & communication | 2019 |
| Noble & Brite Retail Ltd | Wholesale & retail | 2019 |
| Noble Winner Trading Ltd | Manufacturing | 2019 |
| Noftek Ltd | Information & communication | 2018 |
| Nollywood Entertainment Ltd | Arts & recreation | 2005 |
| Nollywood Heavens Ltd | Hospitality | 2025 |
| Nomad Filmsuk Limited | Information & communication | 2011 |
| Nordexim Ltd | Wholesale & retail | 2024 |
| Nordic Quarter Ltd | Wholesale & retail | 2018 |
| Norman Bespoke Limited | Construction | 2016 |
| Norreys Road Residents Limited | Households | 2024 |
| North Approach (Block 1) Residents Limited | Other services | 1998 |
| North Dorset Car Repairs Ltd | Wholesale & retail | 2014 |
| North Dorset Caravans Limited | Arts & recreation | 2014 |
| North Dorset Rugby Football Club Limited | Arts & recreation | 2010 |
| North Dorset Stone Limited | Construction | 1989 |
| Northmore Limited | Real estate | 2003 |
| Norval Ltd | Wholesale & retail | 2017 |
| NOT Bloody Mary’S Limited | Hospitality | 2026 |
| Nova Cyrus Ltd | Administrative & support | 2024 |
| Novechem Technology Ltd | Wholesale & retail | 2012 |
| Novivet Limited | Professional & scientific | 2024 |
| NOW Electrical South East Ltd | Construction | 2022 |
| Noyb Investments Limited | Wholesale & retail | 2023 |
| NPK Square Limited | Health & social care | 2022 |
| Nprieto Studio Ltd | Real estate | 2020 |
| NR Foods Ltd | Hospitality | 2022 |
| NRG Electrix Ltd | Other services | 2021 |
| NRI Advisory Limited | Professional & scientific | 2023 |
| NS T-Shirts Ltd | Wholesale & retail | 2021 |
| NST Flooring Limited | Construction | 2002 |
| NTG Consultancy Ltd | Professional & scientific | 2019 |
| Ntgd Valve Co. Ltd | Extraterritorial | 2019 |
| NU Car Programming Ltd | Wholesale & retail | 2022 |
| Nuach Care Home Ltd | Health & social care | 2025 |
| Nubat Stores Ltd | Wholesale & retail | 2025 |
| Nubella Estates Ltd | Real estate | 2025 |
| Nular Properties Ltd | Real estate | 2023 |
| Nurse Hub Africa CIC | Administrative & support | 2026 |
| Nutmegs Patisserie Limited | Hospitality | 2014 |
| Nutriology Limited | Health & social care | 2004 |
| Nvlas Ltd | Construction | 2017 |
| Nwmsn Holdings Ltd | Real estate | 2024 |
| NXT Level Construction Limited | Construction | 2021 |
| Nyameadwuma Company Limited | Health & social care | 2022 |
| O'Grady Plant Hire Limited | Administrative & support | 2013 |