| Nicole Powell Limited | Information & communication | 2019 |
| Nicoluk Transport Ltd | Transport & logistics | 2022 |
| Niconn Ltd | Transport & logistics | 2026 |
| Nicrest Management Ltd | Real estate | 2021 |
| Nicu European Transport Ltd | Administrative & support | 2016 |
| Nidhi Foods Ltd | Manufacturing | 2025 |
| Nidhi Solutions Ltd | Information & communication | 2016 |
| Nids Hub Limited | Professional & scientific | 2023 |
| Nidva Limited | Wholesale & retail | 2025 |
| Nifa International Corporation Limited | Construction | 2020 |
| Nifm Technologies Ltd | Wholesale & retail | 2025 |
| Nigel Grossman Surveying Limited | Professional & scientific | 2010 |
| Night Klub Limited | Manufacturing | 2023 |
| Nightflightt Ltd | Transport & logistics | 2016 |
| Nightime Bars Limited | Hospitality | 2025 |
| Nightingale 1 2025 Limited | Professional & scientific | 2016 |
| Nightingale 2 2025 Limited | Construction | 2006 |
| Nightingale Investments (Holdings) Limited | Administrative & support | 2024 |
| Nightingale Pharma (2025) Limited | Manufacturing | 2025 |
| Nightingale Prop Ltd | Real estate | 2021 |
| Nigiri Sushi Limited | Wholesale & retail | 2025 |
| Nihir Shah Ltd | Health & social care | 2023 |
| Nijari RR Ltd | Administrative & support | 2025 |
| NIK Ammar Ltd | Information & communication | 2013 |
| NIK Food Limited | Hospitality | 2018 |
| NIK Holdings Ltd | Health & social care | 2026 |
| NIK K Design Ltd | Professional & scientific | 2024 |
| NIK S Coaching Ltd | Health & social care | 2020 |
| Nikecom Ltd | Health & social care | 2021 |
| Nikesh (UK) Ltd | Wholesale & retail | 2020 |
| Niki Pharm Ltd | Health & social care | 2018 |
| Nikin Decor Ltd | Administrative & support | 2016 |
| Nikita Holdings Limited | Financial services | 2022 |
| Niknat Productions Limited | Information & communication | 2005 |
| Nikon Properties Limited | Financial services | 2020 |
| Nikster Nine Limited | Real estate | 2021 |
| Nila Estates Ltd | Real estate | 2023 |
| Nila Parmar Designs Ltd | Wholesale & retail | 2021 |
| Nila Productions Ltd | Information & communication | 2012 |
| Nila-Av Ltd | Information & communication | 2025 |
| Nilacharal Ltd | Information & communication | 2006 |
| Nilata Enterprise Limited | Wholesale & retail | 2024 |
| Nile 1798 Ltd | Wholesale & retail | 2019 |
| Nile 1898 Ltd | Wholesale & retail | 2019 |
| Nile View Limited | Real estate | 2023 |
| Nilkanth Foods Ltd | Wholesale & retail | 2023 |
| Nilkanth Logistic Ltd | Transport & logistics | 2024 |
| Nilkanth Properties London Limited | Real estate | 2021 |
| Nilkanth Property Investments Limited | Real estate | 2023 |
| Nilkanth Sevaks Limited | Administrative & support | 2017 |
| Nilkanth Varni London Limited | Professional & scientific | 2025 |
| Nillkanth UK Ltd | Wholesale & retail | 2015 |
| Nilma Properties LLP | | 2023 |
| Nilou Ltd | Real estate | 2024 |
| Nilu AI Limited | Information & communication | 2025 |
| NIM Law Ltd | Professional & scientific | 2024 |
| Nimesh Properties Ltd | Real estate | 2025 |
| Nimisha and Mukesh Consultants Limited | Wholesale & retail | 1990 |
| Nimist Ltd | Professional & scientific | 2022 |
| Nimit Properties Ltd | Real estate | 2025 |
| Nimrod Ltd | Real estate | 2020 |
| Nina Sisters Ltd | Wholesale & retail | 2023 |
| Nine Acorns Investments Ltd | Real estate | 2022 |
| Nine Red Roses Limited | Other services | 2024 |
| Nine T 3 Consultancy Services Ltd | Professional & scientific | 2026 |
| Nineteen@Dyrham Limited | Arts & recreation | 2025 |
| Ninja Sisters Ltd | Other services | 2023 |
| Ninjacode Limited | Information & communication | 2013 |
| Niovi Digital Ltd | Information & communication | 2023 |
| Nippers 2 Flippers Limited | Arts & recreation | 2016 |
| Niram Properties LLP | | 2019 |
| Nirbhay Holding Limited | Other services | 2005 |
| Niria Consulting Ltd | Professional & scientific | 2025 |
| Nirja Online Ltd | Wholesale & retail | 2016 |
| Nirmaan Developments Ltd | Real estate | 2020 |
| Nirmaan Ltd | Real estate | 2011 |
| Nirmaan Management Ltd | Construction | 2024 |
| Nirmal Consulting Limited | Information & communication | 2015 |
| Nirmal Properties Limited | Real estate | 2023 |
| Nirmata Consulting Ltd | Professional & scientific | 2024 |
| Niro LUX Ltd | Real estate | 2025 |
| Nirvan Realty Limited | Construction | 2022 |
| Nirvana Lounge Ltd | Hospitality | 2025 |
| NIS Construction Ltd | Construction | 2020 |
| Nisa Accountants Ltd | Professional & scientific | 2019 |
| Nisa Estates Ltd | Real estate | 2023 |
| Nisana Property Ltd | Real estate | 2017 |
| Nisaru Investments Limited | Professional & scientific | 2015 |
| Nischay Ltd | Real estate | 2017 |
| Nisconstruct Ltd | Construction | 2023 |
| Nish & Amee Ltd | Real estate | 2018 |
| Nish Ceylon UK Limited | Wholesale & retail | 2024 |
| Nish Express Limited | Wholesale & retail | 2025 |
| Nish Gadhia Ltd | Professional & scientific | 2009 |
| Nisha Services Ltd | Administrative & support | 2025 |
| Nishant Choksi Limited | Arts & recreation | 2007 |
| Nishit Holdings Limited | Real estate | 2018 |
| Nishmay Limited | Real estate | 2020 |
| Nishtik Ltd | Professional & scientific | 2023 |
| Nislux Limited | Other services | 2021 |