| North West Horsham Estates Ltd | Real estate | 2016 |
| North West Krav Maga Limited | Administrative & support | 2018 |
| North West Marquee Hire Limited | Administrative & support | 2019 |
| North West News Limited | Information & communication | 2000 |
| North West Preservation Group Ltd | Arts & recreation | 2022 |
| North West Pump Services Limited | Manufacturing | 2025 |
| North West Recruit Limited | Administrative & support | 2019 |
| North West Sprayers Ltd | Construction | 2025 |
| North West Trailer Repairs Limited | Wholesale & retail | 2012 |
| North Yorkshire Property Investments Limited | Real estate | 2025 |
| Northbarn Properties (NW) Limited | Real estate | 2016 |
| Northcote Business Services Limited | Other services | 2018 |
| Northenden Dental Limited | Health & social care | 2025 |
| Northern Ceilidh Events Limited | Professional & scientific | 2023 |
| Northern Compressed Air Limited | Manufacturing | 2008 |
| Northern Environmental Consultancy Services Limited | Administrative & support | 2025 |
| Northern Farms Limited | Agriculture & fishing | 2019 |
| Northern Guitar Shows Limited | Administrative & support | 2008 |
| Northern Harvest Limited | Wholesale & retail | 2002 |
| Northern Industrial Parks (Holdings) Limited | Financial services | 2017 |
| Northern Industrial Parks Limited | Real estate | 1996 |
| Northern Light Motors Ltd | Manufacturing | 2020 |
| Northern Lights Consultancy Limited | Professional & scientific | 2021 |
| Northern Lights Sunbeds Limited | Other services | 2012 |
| Northern Luck Publishing Ltd | Information & communication | 2019 |
| Northern Nuclear Alliance Limited | Administrative & support | 2016 |
| Northern Salmon Services Limited | Other services | 2017 |
| Northern Star Logistics Ltd | Transport & logistics | 2023 |
| Northern Star Productions Ltd | Information & communication | 2020 |
| Northern Strength Ltd | Arts & recreation | 2022 |
| Northern Water Services Limited | Water & waste | 2003 |
| Northgate Supplies Limited | Wholesale & retail | 2019 |
| Northolme Construction Ltd | Construction | 2025 |
| Northout Services Ltd | Information & communication | 2025 |
| Northpoint Cyber Security Consultancy Limited | Information & communication | 2015 |
| Northpoint Projects Ltd | Professional & scientific | 2025 |
| Northwest Academy FC Limited | Education | 2026 |
| Northwest Auto Caddy T/A Northwest Auto Commercials Ltd | Wholesale & retail | 2012 |
| Northwest Bar Investments Ltd | Hospitality | 2023 |
| Northwest Driving Solutuions Limited | Transport & logistics | 2025 |
| Northwest Equipment Leasing Limited | Administrative & support | 2011 |
| Northwest Garage Equipment Ltd | Manufacturing | 2021 |
| Northwest GAS and Plumbing Services Limited | Construction | 2019 |
| Northwest GRP Ltd | Construction | 2018 |
| Northwest Guitars Limited | Wholesale & retail | 2011 |
| Northwest Heating Services Ltd | Construction | 2018 |
| Northwest Landscaping&Building Ltd | Construction | 2025 |
| Northwest Parking Management Ltd | Administrative & support | 2016 |
| Northwest Small Practice Forum Limited | Other services | 2024 |
| Northwest Sport & Development Ltd | Construction | 2020 |
| Northwest Venues Limited | Hospitality | 2022 |
| Northwesthousekeepinguk Ltd | Administrative & support | 2023 |
| Northwich Holdings Limited | Real estate | 2022 |
| Northwood Medical Ltd | Health & social care | 2018 |
| Northwood Warrington Limited | Real estate | 2011 |
| Norvap International Ltd. | Wholesale & retail | 2011 |
| Norwepp Limited Partnership | | 2006 |
| Norwest Industrial Roofing Limited | Construction | 1976 |
| Norwood Capital Limited | Financial services | 2020 |
| Nosey Parkers Sweets Limited | Wholesale & retail | 2025 |
| NOT Quite Round Ltd | Information & communication | 2023 |
| Notek Labs Limited | Information & communication | 2020 |
| Nothing BUT Cats Limited | Administrative & support | 2025 |
| Notion Golf Ltd | Wholesale & retail | 2021 |
| Notsobig Limited | Wholesale & retail | 2018 |
| Notus Heavy Lift Solutions Limited | Professional & scientific | 2015 |
| Nourina Properties Limited | Construction | 2024 |
| Nourishing Routes Ltd | Health & social care | 2024 |
| Nourvio Holdings Ltd | Financial services | 2026 |
| Nouvelle Body Clinic Limited | Other services | 2024 |
| Nouvelle Investments Limited | Real estate | 2020 |
| Nova Polaris Consulting Limited | Information & communication | 2023 |
| Novaquant Consultancy Ltd | Professional & scientific | 2022 |
| Novarro Limited | Professional & scientific | 2020 |
| Novatara Properties Limited | Real estate | 2025 |
| Novelis Services Limited | Administrative & support | 2008 |
| Novelis UK Ltd | Manufacturing | 1933 |
| Novo Consultants Limited | Professional & scientific | 2018 |
| Novum Technology Limited | Information & communication | 2022 |
| Novum Tempus Ltd | Information & communication | 2016 |
| NOW U Know Training Ltd | Administrative & support | 2015 |
| Nowt Creative Ltd | Professional & scientific | 2025 |
| NOY Family Limited | Financial services | 2022 |
| Noya Consulting Limited | Information & communication | 2017 |
| NOZ Networks Limited | Information & communication | 2022 |
| NPB Projects Limited | Construction | 2015 |
| NPR Consultancy Limited | Information & communication | 2018 |
| NQ Occupational Therapy Limited | Other services | 2017 |
| Nqual Ltd | Education | 2017 |
| NR Convenience Store Ltd | Wholesale & retail | 2022 |
| NR Skymed Limited | Health & social care | 2020 |
| NRG Solar Ltd | Construction | 2024 |
| Nrgsurgery Limited | Health & social care | 2023 |
| NRL Consultancy Limited | Professional & scientific | 2017 |
| NRN Events Limited | Professional & scientific | 2005 |
| Nrsbuild Ltd | Construction | 2020 |
| NS Project Ltd | Information & communication | 2013 |
| NS Robertson Ltd | Administrative & support | 2024 |
| NS Training Consultancy Ltd | Professional & scientific | 2024 |
| Nsas Surgical Limited | Health & social care | 2015 |