| Natasha Foods Limited | Manufacturing | 2009 |
| Natasha Levy Properties Ltd | Real estate | 2019 |
| Natco Construction Limited | Manufacturing | 2025 |
| Naterra Foods Ltd | Wholesale & retail | 2026 |
| Natg Ltd | Professional & scientific | 2020 |
| Natha Lila Limited | Transport & logistics | 2018 |
| Nathan Perry Carpentry and Building Services Ltd | Construction | 2024 |
| Nathan's Fast Food Ltd | Hospitality | 2025 |
| Nathan's Fruit & VEG Ltd | Wholesale & retail | 2026 |
| Nathibaa Ltd | Real estate | 2024 |
| Nathn Ltd | Information & communication | 2025 |
| Nathshan UK Limited | Administrative & support | 2016 |
| Nathvani Properties Ltd | Real estate | 1998 |
| Nathwani Holdings Ltd | Real estate | 2021 |
| National Association for Hospital Education | Other services | 2019 |
| National Car Finder Ltd | Wholesale & retail | 2025 |
| National Car Traders Ltd | Wholesale & retail | 2018 |
| National Carpets & Flooring Ltd | Wholesale & retail | 2018 |
| National Compliance Network Limited | Professional & scientific | 2025 |
| National Eco Group Ltd | Construction | 2023 |
| National EYE Registry Limited | Health & social care | 2003 |
| National Forest Homes Ltd | Real estate | 2024 |
| National Health Products Ltd | Wholesale & retail | 2022 |
| National Learning and Work Institute | Education | 1991 |
| National Logistic Cell Limited | Transport & logistics | 2024 |
| National Logistics Services Ltd | Transport & logistics | 2025 |
| National Mobile Eyecare Ltd | Health & social care | 2026 |
| National Mobility Hire Limited | Administrative & support | 2008 |
| National Motor Cycle(Nmc) Limited | Administrative & support | 2023 |
| National Point Logistics Ltd | Transport & logistics | 2025 |
| National Space Centre | Education | 1997 |
| National Will Storage Ltd | Other services | 2017 |
| Nationwide Construction Training Limited | Education | 2005 |
| Nationwide Couriers FT Limited | Transport & logistics | 2025 |
| Nationwide Express Transport Ltd | Transport & logistics | 2024 |
| Nationwide Financial Advisory Services Limited | Financial services | 2018 |
| Nationwide Logistics Leicester Limited | Transport & logistics | 2023 |
| Nationwide Physio Ltd | Other services | 2018 |
| Nationwide Property Services Ltd | Construction | 2019 |
| Nationwide Suspended Ceilings Ltd | Construction | 2015 |
| Nationwide Windscreen Services Ltd | Administrative & support | 2006 |
| Natmun Property Ltd | Real estate | 2022 |
| Natrello Ltd | Hospitality | 2022 |
| Nats Consultancy Limited | Health & social care | 2025 |
| Natsad Limited | Hospitality | 2024 |
| Nattaris (Desford) Management Company Limited | Households | 2010 |
| Natterjacks A&M Lounge Ltd | Hospitality | 2023 |
| Natucare Limited | Wholesale & retail | 2026 |
| Natura Garden Design Limited | Administrative & support | 2010 |
| Natural Flooring & Tiles Ltd | Wholesale & retail | 2013 |
| Natural Kitchen by Devi Limited | Hospitality | 2021 |
| Natural Nibs Ltd | Wholesale & retail | 2025 |
| Natural Supplies Limited | Wholesale & retail | 2017 |
| Natural VET Products Limited | Professional & scientific | 1998 |
| Natural Wellbeing Leicester Ltd | Health & social care | 2018 |
| Naturalite Limited | Manufacturing | 2025 |
| Naturally US Chiropractic Clinic Limited | Health & social care | 2025 |
| Naturals Foods UK Ltd | Wholesale & retail | 2022 |
| Natures Friend Limited | Wholesale & retail | 2021 |
| Naturz Limited | Wholesale & retail | 2020 |
| Natz Ventures Limited | Administrative & support | 2015 |
| Naurizparts Limited | Wholesale & retail | 2025 |
| NAV Optimal Software Solutions Ltd | Information & communication | 2016 |
| NAV Property Maintenance Ltd | Construction | 2023 |
| Navas Associates Limited | Construction | 2012 |
| Navenby News Limited | Wholesale & retail | 2022 |
| Navi Yuvi Properties Ltd | Real estate | 2023 |
| Navigator Data Solutions Limited | Professional & scientific | 2026 |
| Navigator Insight Limited | Professional & scientific | 1996 |
| Navigator Lifts Ltd | Wholesale & retail | 2020 |
| Navij Network Limited | Wholesale & retail | 2026 |
| Navkar Solutions Ltd | Wholesale & retail | 2022 |
| Navp Limited | Other services | 2009 |
| Navrang Cash and Carry Ltd | Manufacturing | 2026 |
| Navrang Ltd | Wholesale & retail | 2023 |
| Navsa Carpets Limited | Wholesale & retail | 2014 |
| Navsa Ltd | Other services | 2011 |
| Navsa Properties Ltd | Real estate | 2024 |
| Navsa Real Estate Ltd | Real estate | 2025 |
| Nawaaz Indian Restaurant Ltd | Hospitality | 2014 |
| Nawal Care Services Ltd | Administrative & support | 2025 |
| Nawaqz Limited | Information & communication | 2026 |
| Nawar Limited | Wholesale & retail | 2026 |
| Nawaz Garments Limited | Manufacturing | 2001 |
| Naya Construction Limited | Construction | 2021 |
| Nayaab Mahomed Limited | Professional & scientific | 2023 |
| Nayan Property Ltd | Real estate | 2026 |
| Naylor Parkes Limited | Extraterritorial | 1999 |
| Naynik Solutions Limited | Real estate | 2008 |
| Nayrra Ltd | Wholesale & retail | 2026 |
| NAZ Digital Limited | Information & communication | 2022 |
| NAZ Electric Limited | Other services | 2002 |
| NAZ Fashion Ltd | Manufacturing | 2019 |
| NAZ Motors Ltd | Wholesale & retail | 2012 |
| Nazarco Ltd | Health & social care | 2026 |
| Nazir PAN House Limited | Wholesale & retail | 2017 |
| Nazir Properties Limited | Real estate | 2021 |
| Nazteq Industries Ltd | Mining & quarrying | 2010 |
| NB Construction Jaat Limited | Construction | 2023 |
| NB Consults Ltd | Wholesale & retail | 2023 |