| Nirmal Singh Ltd | Construction | 2017 |
| Nirmashakti Limited | Transport & logistics | 2025 |
| Nirmaya Estates Ltd | Construction | 2025 |
| Nirvair Properties Ltd | Real estate | 2021 |
| Nirvana Day Centre Ltd | Health & social care | 2018 |
| Nirvint Limited | Wholesale & retail | 2024 |
| Nisa Beauty Ltd | Other services | 2022 |
| Nisa Thai Kitchen Ltd | Hospitality | 2023 |
| Nishaan Enterprise Ltd | Construction | 2026 |
| Nishkiyana Limited | Real estate | 2025 |
| Nit's Construction Ltd | Construction | 2015 |
| Niteshkumar Ltd | Transport & logistics | 2026 |
| Nitwit Prints Ltd | Manufacturing | 2026 |
| Nivaaj Transport Ltd | Transport & logistics | 2026 |
| Nixxie Solutions Ltd | Administrative & support | 2026 |
| Niyati Cctv Installations Limited | Administrative & support | 2012 |
| Nizam Khan Ltd | Wholesale & retail | 2025 |
| NJ and Sons Ltd | Wholesale & retail | 2024 |
| NJ Entertainment Ltd | Hospitality | 2022 |
| NJ Hunters Services Ltd | Construction | 2024 |
| Nj-Nj Estates Ltd | Real estate | 2023 |
| Njovana Diamond Developments Limited | Real estate | 2025 |
| NK European Real Estate Limited | Real estate | 2021 |
| NK Quality Builders Ltd | Construction | 2022 |
| NK Steelworks Ltd | Construction | 2026 |
| NKA Construction Ltd | Construction | 2020 |
| NKD 20 F1 Ltd | Real estate | 2026 |
| NKD 20 F2 Ltd | Real estate | 2026 |
| NKD 20 F3 Ltd | Real estate | 2026 |
| NKD 20 F5 Ltd | Real estate | 2026 |
| NKD 20 FH Ltd | Real estate | 2026 |
| NKD3 Ltd | Real estate | 2024 |
| NKG Assets Ltd | Real estate | 2021 |
| NKJ Distribution Ltd | Wholesale & retail | 2023 |
| NKM Associates Ltd | Construction | 2022 |
| NKN Home Creations Limited | Construction | 2022 |
| NM Constructions & Design Ltd | Construction | 2023 |
| NM Solutions London Ltd | Transport & logistics | 2015 |
| Nmaan Portal Limited | Information & communication | 2025 |
| NMC Ventures Ltd | Real estate | 2024 |
| NMK Investments Ltd | Real estate | 2021 |
| Nnisa Limited | Real estate | 2023 |
| NNN Traders Ltd | Wholesale & retail | 2024 |
| NO1 PCO Training Ltd | Education | 2024 |
| NO17 Group Ltd | Information & communication | 2025 |
| NO17 Properties Ltd | Real estate | 2026 |
| NO17.AI Ltd | Information & communication | 2026 |
| Noah & Shilan Consultancy Ltd | Professional & scientific | 2021 |
| Noah Solution Ltd | Information & communication | 2023 |
| Noble Constrcution London Ltd | Construction | 2026 |
| Noble Food Products Ltd | Manufacturing | 2018 |
| Noble Mart Ltd | Wholesale & retail | 2025 |
| Noble Suppliers Limited | Wholesale & retail | 2018 |
| Noble Trade Links Ltd | Administrative & support | 2024 |
| Nofo Ltd | Information & communication | 2025 |
| NOH London Ltd | Wholesale & retail | 2025 |
| Nomadix Productions Limited | Information & communication | 2021 |
| NOMAN7214&CO Ltd | Wholesale & retail | 2025 |
| Nonynana Limited | Wholesale & retail | 2022 |
| Noor Builders Southall Ltd | Manufacturing | 2024 |
| Noor Business Services Ltd | Wholesale & retail | 2014 |
| Noor Developer Ltd | Construction | 2026 |
| Noor International Relief Supplier Ltd | Other services | 2012 |
| Nora Planning Limited | Real estate | 2025 |
| Norflat Management Company Limited | Households | 1980 |
| Norr & Co Ltd | Hospitality | 2025 |
| North Home Design Ltd | Professional & scientific | 2023 |
| North Hyde Investments Limited | Real estate | 2015 |
| North Hyde Road Residents Association Limited | Real estate | 1993 |
| North Point Property Limited | Real estate | 2017 |
| North West Build Ltd | Construction | 2025 |
| Northern Country Contractors Ltd. | Construction | 2026 |
| Northields Food Limited | Hospitality | 2026 |
| Northolt Express Convenience Store Ltd | Wholesale & retail | 2025 |
| Northpoint Trade Limited | Wholesale & retail | 2024 |
| Norton Events Limited | Administrative & support | 2015 |
| Nourish & Go Limited | Wholesale & retail | 2025 |
| Nouveau Riche Consulting Limited | Information & communication | 2025 |
| Nouveau Riche Realty Limited | Real estate | 2016 |
| Nova Horizon Enterprises Ltd | Wholesale & retail | 2026 |
| Nova Supermarket Ltd | Wholesale & retail | 2026 |
| Novaenergy Compliance Ltd | Information & communication | 2025 |
| Novamerx Ltd | Information & communication | 2026 |
| NOVARA28 Ltd | Financial services | 2025 |
| Novel Transfers Limited | Transport & logistics | 2024 |
| Novelwall Ltd | Wholesale & retail | 2018 |
| Novo Ealing Ltd | Wholesale & retail | 2025 |
| Nowit Services Ltd | Information & communication | 2019 |
| NP London Limited | Health & social care | 2026 |
| NPD Film Transport Limited | Transport & logistics | 2025 |
| NQB Consulting Ltd | Professional & scientific | 2024 |
| NR Interiors Ltd | Professional & scientific | 2024 |
| NR Sidhu Limited | Wholesale & retail | 2024 |
| Nrachid Holdings Ltd | Real estate | 2025 |
| NRK Ventures Ltd | Real estate | 2025 |
| NS Pro Services Limited | Administrative & support | 2022 |
| NS Smart Homes Ltd | Information & communication | 2021 |
| NSD Consultants Ltd | Education | 2024 |
| NSG Accessories Ltd | Other services | 2019 |
| NSM Mobile and Vape Ltd | Manufacturing | 2022 |