| N Dimarco Limited | Wholesale & retail | 2020 |
| N N Cresswell Coach Hire Limited | Transport & logistics | 2012 |
| N-Tech Engineering Solutions Ltd. | Manufacturing | 2016 |
| N.J.N Design&Build Ltd | Construction | 2019 |
| N.J.N Group Holdings Ltd | Financial services | 2025 |
| N.J.N Properties Limited | Administrative & support | 2021 |
| Nacnud Limited | Professional & scientific | 2021 |
| Nailed IT by ZOE Ltd | Other services | 2015 |
| Namaste Evesham Ltd | Hospitality | 2025 |
| Nano INK Ltd | Wholesale & retail | 2026 |
| Nanoteam Insulation Ltd | Construction | 2019 |
| Nardaran Limited | Manufacturing | 2017 |
| Narh Holdings Limited | Financial services | 2026 |
| NAT Lewis Consulting Ltd | Professional & scientific | 2019 |
| National Association of Business Crime Partnerships Ltd | Other services | 2018 |
| Nationwide Cleaners Glos Warwick Worcestershire Ltd | Administrative & support | 2015 |
| Natural Beauty Enhancement Ltd | Health & social care | 2010 |
| Nature TAO Ltd | Health & social care | 2011 |
| ND Send Consultancy Limited | Professional & scientific | 2024 |
| Neil Farr Electrical Limited | Construction | 2008 |
| Neil Hunt Limited | Construction | 2001 |
| Nelson Court (Tewkesbury) Ltd | Households | 2012 |
| Neon Candy Ltd | Wholesale & retail | 2021 |
| Nesti Property Ltd | Real estate | 2024 |
| New Acre Cars Limited | Extraterritorial | 2023 |
| New AGE Care Birmingham Limited | Health & social care | 2025 |
| New AGE Care Cambridgeshire Limited | Administrative & support | 2025 |
| New AGE Care Coventry Limited | Health & social care | 2025 |
| New AGE Care Hereford and Worcestershire Limited | Health & social care | 2025 |
| New AGE Care Leicestershire Limited | Health & social care | 2025 |
| New AGE Care Northamptonshire Limited | Health & social care | 2025 |
| New AGE Care Solihull Limited | Health & social care | 2025 |
| New AGE Care Staffordshire Limited | Health & social care | 2025 |
| New AGE Care Yorkshire Limited | Health & social care | 2025 |
| New Deurali Ltd | Hospitality | 2025 |
| New Education Trust | Education | 2014 |
| Newacre Leisure Limited | Manufacturing | 2022 |
| Neweden UK Ltd | Professional & scientific | 2009 |
| Next Chapter Business Advisory Limited | Professional & scientific | 2026 |
| Nexterior Limited | Manufacturing | 2003 |
| Nextrack Limited | Real estate | 1999 |
| Nextseer Publishing Ltd | Information & communication | 2025 |
| Nexus GRC Solutions Ltd | Information & communication | 2026 |
| NH Creative Limited | Arts & recreation | 2023 |
| Ni&Si Ltd | Transport & logistics | 2021 |
| Nichola Mckay Associates Ltd | Administrative & support | 2009 |
| Nicholas Towe Developments and Investments Limited | Construction | 2023 |
| Nick Whale Motorhomes Limited | Wholesale & retail | 2026 |
| Nigel Poole Pershore Limited | Real estate | 2026 |
| NIL Studios Ltd | Information & communication | 2026 |
| Nimbus Products (Sheffield) Limited | Wholesale & retail | 1971 |
| Nine North Avenue Management Company Limited | Households | 2020 |
| Nitka Ltd | Transport & logistics | 2016 |
| NJB Motor Tech Limited | Wholesale & retail | 2017 |
| NJB Motor Tech MOT Centre Limited | Wholesale & retail | 2023 |
| NME Investments Limited | Real estate | 2024 |
| NO.3 (Fowey) Ltd. | Wholesale & retail | 2024 |
| Noble Hops Ltd. | Wholesale & retail | 2014 |
| NON League Networking Ltd | Other services | 2023 |
| Non-Ferrous Metal Solutions Ltd | Administrative & support | 2024 |
| Nonabyte Co., Limited | Wholesale & retail | 2022 |
| Noralux Ltd | Real estate | 2025 |
| Nortech Management Limited | Manufacturing | 1993 |
| North Latitude Thirty Ltd | Information & communication | 2023 |
| North Midlands Society of Rugby Football Referees Limited | Arts & recreation | 2012 |
| Northants Elite Groundworks and Construction Ltd | Construction | 2024 |
| Norton Farm (Evesham) Limited | Agriculture & fishing | 2018 |
| Nostalgia Café Ltd | Hospitality | 2025 |
| NPC Produce Ltd | Wholesale & retail | 2011 |
| NPR Developments Ltd | Construction | 2012 |
| Numo Ltd | Information & communication | 2025 |
| Nutmeadow Properties Limited | Real estate | 1985 |
| Nutricycle Products Ltd | Manufacturing | 2023 |
| Nutwoodventuresuk Ltd | Real estate | 2025 |
| Nuvo Pergolas Limited | Wholesale & retail | 2025 |
| O & D Bille Limited | Real estate | 2023 |
| O V and G Pilade Properties Limited | Real estate | 2014 |
| O V G Holdings Limited | Extraterritorial | 2025 |
| Oakenvale Ltd | Construction | 2008 |
| Oakfield Farm Products Limited | Agriculture & fishing | 1982 |
| Oakpoint Management Limited | Wholesale & retail | 1999 |
| Oakside Property (Malvern) Limited | Construction | 2014 |
| Oakwood Holdings Limited | Financial services | 2015 |
| Ocuix Limited | Administrative & support | 2009 |
| OD & FM Property Ltd | Real estate | 2026 |
| OFF the Clock Tuning Ltd | Wholesale & retail | 2025 |
| Offenham Village Stores Ltd | Wholesale & retail | 2023 |
| OJT Camera Ltd | Information & communication | 2022 |
| Old School Cafe (Evesham) Limited | Hospitality | 2023 |
| Old World Meats Ltd | Wholesale & retail | 2017 |
| Olidor Group Limited | Professional & scientific | 2013 |
| Omega Electrical Contractors (CRT) Ltd | Construction | 2017 |
| Omega Renewable Energy Solutions Ltd | Construction | 2022 |
| Omts Properties Limited | Real estate | 2019 |
| Once Upon a Time Children's Events Limited | Arts & recreation | 2025 |
| Oncore EPD Limited | Professional & scientific | 2020 |
| One and Every Limited | Wholesale & retail | 2025 |
| One for the Road ALE House Limited | Hospitality | 2025 |
| One JAR Candle Company Limited | Manufacturing | 2023 |
| One Mohtiv Ltd | Extraterritorial | 2017 |