| N1 Construction Limited | Extraterritorial | 2014 |
| N1 Consultancy Limited | Extraterritorial | 2014 |
| N1 Education Limited | Extraterritorial | 2014 |
| N1 Energy Limited | Extraterritorial | 2014 |
| N1 Group London Limited | Real estate | 2014 |
| N1 Health Limited | Extraterritorial | 2014 |
| N1 Manpower Limited | Extraterritorial | 2014 |
| N1 Media Limited | Extraterritorial | 2014 |
| N1 Security Limited | Extraterritorial | 2014 |
| N1 Sport Limited | Extraterritorial | 2014 |
| N1 Technology Limited | Extraterritorial | 2014 |
| N1 Trade Limited | Extraterritorial | 2014 |
| N1 Transport Limited | Extraterritorial | 2014 |
| N1 Travel Limited | Extraterritorial | 2014 |
| NA Automotive Ltd | Wholesale & retail | 2022 |
| Nahr Ltd | Other services | 2022 |
| Naji Jawad Award | Education | 2025 |
| Naked Woodwork Limited | Construction | 2015 |
| Nanajean's Ltd | Manufacturing | 2022 |
| Nanoom UK CIC | Education | 2023 |
| Naomi and Ruth Ltd | Wholesale & retail | 2010 |
| Napier Court Residents Limited | Households | 1993 |
| Nara-Abroad Ltd | Education | 2025 |
| Naraingroup. Ltd | Professional & scientific | 2023 |
| Natai Ltd | Other services | 2026 |
| Native Nomad Pictures Limited | Information & communication | 2012 |
| Natlan Travel Ltd | Administrative & support | 2024 |
| Natural Herb Solution UK Ltd | Construction | 2014 |
| Naturals Beauty & Salon Ltd | Other services | 2021 |
| Nazz Barbers Ltd | Other services | 2025 |
| ND Bright Brains Ltd | Education | 2023 |
| Need a Consultant Limited | Information & communication | 2017 |
| Nena Limited | Transport & logistics | 2018 |
| Nerbiani Limited | Hospitality | 2019 |
| Nest Connect Ltd | Professional & scientific | 2018 |
| Network 7 UK Limited | Transport & logistics | 1997 |
| Neurophd Ltd | Professional & scientific | 2023 |
| Nevada Falcon Ltd | Health & social care | 2009 |
| New Field International Education (UK) Limited | Education | 2013 |
| New Malden Chiropractic Clinic Limited | Health & social care | 2022 |
| New Malden Fish Bar Ltd | Hospitality | 2022 |
| New Malden Food & VEG Ltd | Wholesale & retail | 2019 |
| New Malden Food Centre Limited | Wholesale & retail | 2016 |
| New Malden Golf Centre Limited | Arts & recreation | 2018 |
| New Malden Hair Salon Limited | Other services | 2011 |
| New Malden International Foods Ltd | Wholesale & retail | 2024 |
| New Malden International Market Ltd | Wholesale & retail | 2026 |
| New Malden Markets Limited | Hospitality | 2022 |
| New Malden Medical Ltd | Health & social care | 2024 |
| New Malden Osteopaths | Health & social care | 2005 |
| New Malden Property Limited | Real estate | 2023 |
| New Malden Rentals Ltd | Administrative & support | 2010 |
| New Malden Super Store Ltd | Wholesale & retail | 2026 |
| New Malden Town Centre Partnership CIC | Arts & recreation | 2023 |
| New Maldens Barber Ltd | Other services | 2025 |
| New Sharp Line Ltd | Manufacturing | 2017 |
| New Top Bond Limited | Households | 2020 |
| New Uthayan Publication Limited | Professional & scientific | 2008 |
| New Vision Co., Ltd | Wholesale & retail | 2010 |
| Newborough Green Residents Association Limited | Households | 1967 |
| Newbrickz Limited | Real estate | 2022 |
| Newmalden Barbers Ltd | Other services | 2021 |
| Newmaldenorg Ltd | Arts & recreation | 2025 |
| Nexsol Services Limited | Information & communication | 2025 |
| Next Door Care Ltd | Health & social care | 2025 |
| Nextera Supplies Ltd | Wholesale & retail | 2025 |
| Nextera Supply Ltd | Wholesale & retail | 2026 |
| Nextwave Supplies Ltd | Wholesale & retail | 2025 |
| NFE Academic (UK) Limited | Education | 2025 |
| Nice Spaces Ltd | Real estate | 2019 |
| Nick Property Maintenance Services Ltd | Construction | 2016 |
| Nicola Butcher Psychology Ltd | Administrative & support | 2021 |
| Niksom Ltd | Manufacturing | 2023 |
| Niktomsom Ltd | Hospitality | 2025 |
| Nilima Restaurant Ltd | Hospitality | 2024 |
| Nina-Elle Ltd | Education | 2026 |
| Niraworld Limited | Information & communication | 2000 |
| Nirness Connect Limited | Information & communication | 2015 |
| Nithiyam Ltd | Real estate | 2026 |
| Nivoshan UK Limited | Transport & logistics | 2002 |
| NJ Cafe Ltd | Hospitality | 2023 |
| NJK Consultancy Services Limited | Professional & scientific | 2024 |
| NJK Property Investments Limited | Real estate | 2020 |
| Nkk&Sons Convenience Store Ltd | Wholesale & retail | 2026 |
| NLF Enterprises Limited | Other services | 2023 |
| NM Relocation Consulting Ltd | Administrative & support | 2022 |
| Nmwp PCN Limited | Health & social care | 2022 |
| Noah Global Limited | Education | 2020 |
| Noble Builders Limited | Construction | 2010 |
| Noblesse Care Ltd | Health & social care | 2021 |
| Nodein Instruments LLP | | 2023 |
| Nodein Instruments P&I Ltd | Information & communication | 2024 |
| Noka Building Ltd | Construction | 2021 |
| Noma Foods Limited | Manufacturing | 2026 |
| Nomad Trainer Ltd | Other services | 2024 |
| Noodle City Ltd | Hospitality | 2026 |
| Noori Academy Ltd | Education | 2014 |
| Noori Education Ltd | Education | 2016 |
| Noori Study Centre Ltd | Education | 2024 |
| Nordic Group Partners Ltd | Construction | 2025 |