| Newkey Ltd | Professional & scientific | 2013 |
| Newland Gifts Ltd | Wholesale & retail | 2017 |
| Newlaw Legal Limited | Professional & scientific | 2010 |
| Newlaw Trustees Limited | Professional & scientific | 2013 |
| Newline Diagnostics Limited | Wholesale & retail | 2018 |
| Newline Mechanical and Electrical Services Limited | Construction | 2016 |
| Newmarket Holdings Limited | Real estate | 2020 |
| Newminster Abbey Ltd | Other services | 2019 |
| Newmode Limited | Wholesale & retail | 2001 |
| Newnoa Limited | Wholesale & retail | 2021 |
| Newone Exchange Ltd | Information & communication | 2025 |
| Newood Technology Limited | Professional & scientific | 2021 |
| Newport Angling Association Limited | Agriculture & fishing | 2017 |
| Newport House Limited | Real estate | 2021 |
| Newport Land Reclamation Limited | Construction | 2011 |
| Newport MOT Station Ltd | Wholesale & retail | 2025 |
| Newport Networks Ltd | Information & communication | 2019 |
| Newport Orthodontics Limited | Health & social care | 2010 |
| Newport Road Maintenance Limited | Households | 2004 |
| Newport Services (UK) Limited | Administrative & support | 2009 |
| Newport Shellfish Co. Limited | Agriculture & fishing | 2022 |
| Newpower International Trading Co., Ltd | Professional & scientific | 2009 |
| Newrach Ltd | Manufacturing | 2025 |
| Newreal Trading Co., Ltd | Wholesale & retail | 2021 |
| Newroz Kebab Limited | Wholesale & retail | 2018 |
| Newsnet Ltd | Information & communication | 2014 |
| Newstyle Barber Shop Cardiff Ltd | Other services | 2020 |
| Newtitancars Limited | Wholesale & retail | 2024 |
| Newton & Newton Construction Ltd | Construction | 2022 |
| Newton & Newton Consultancy Ltd | Professional & scientific | 2021 |
| Newton Bangla Bazzar Ltd | Wholesale & retail | 2025 |
| Newton HR Ltd | Administrative & support | 2006 |
| Newtown Vehicle Rentals Limited | Transport & logistics | 1974 |
| Newven Limited | Professional & scientific | 2011 |
| Newview Earthworks Ltd | Construction | 2019 |
| Newview Group Limited | Other services | 2021 |
| Newy Homes Ltd | Real estate | 2023 |
| Newydd Maintenance Limited | Construction | 2018 |
| Newyork RCT Ltd | Hospitality | 2025 |
| NEX Trade International Ltd | Manufacturing | 2024 |
| NEX Ventures Ltd | Financial services | 2019 |
| Nexa Coree Ltd | Wholesale & retail | 2025 |
| Nexa DEV Limited | Information & communication | 2025 |
| Nexa Life Sciences Ltd | Administrative & support | 2024 |
| Nexa Support Midlands Limited | Information & communication | 2025 |
| Nexa Wave Global Limited | Wholesale & retail | 2024 |
| Nexastar Ltd | Wholesale & retail | 2026 |
| Nexatech Innovations Limited | Wholesale & retail | 2025 |
| Nexatrade Global Ltd | Wholesale & retail | 2025 |
| Nexbuy Global Ltd | Wholesale & retail | 2026 |
| Nexejump Limited | Wholesale & retail | 2025 |
| Nexens Marketing Ltd | Information & communication | 2024 |
| Nexetoiles Ltd | Information & communication | 2025 |
| Nexford Trade Limited | Financial services | 2022 |
| Nexgen Electronics Ltd | Wholesale & retail | 2025 |
| Nexgen Financetech Ltd | Wholesale & retail | 2024 |
| Nexgen Futures Limited | Professional & scientific | 2020 |
| Nexgen Marketing Ltd | Information & communication | 2024 |
| Nexis Business Group Ltd | Professional & scientific | 2024 |
| Nexlanc Tech Ltd | Information & communication | 2025 |
| Nexlume Limited | Information & communication | 2025 |
| Nexo Trading Ltd | Wholesale & retail | 2026 |
| Nexolix Ltd | Wholesale & retail | 2024 |
| Nexon Gadgets Ltd | Wholesale & retail | 2025 |
| Nexonix Ltd | Wholesale & retail | 2025 |
| Nexora Digital Ltd | Wholesale & retail | 2025 |
| Nexora Global Ltd | Wholesale & retail | 2025 |
| Nexora Marketing Ltd | Professional & scientific | 2025 |
| Nexora Online Ltd | Wholesale & retail | 2026 |
| Nexora Services Ltd | Hospitality | 2025 |
| Nexorasphere Ltd | Wholesale & retail | 2025 |
| Nexoria Systems Limited | Professional & scientific | 2025 |
| Nexovia Ltd | Wholesale & retail | 2025 |
| Nexozine Ltd | Wholesale & retail | 2024 |
| Nexstone Construction Limited | Construction | 2011 |
| Next Century Student Ltd | Information & communication | 2020 |
| Next GEN Development Centre C.I.C. | Arts & recreation | 2022 |
| Next GEN Gadgets Limited | Wholesale & retail | 2025 |
| Next Innovation in Learning Ltd | Information & communication | 2025 |
| Next Level Building Ltd | Construction | 2026 |
| Next Level Video Production Limited | Arts & recreation | 2017 |
| Next Partners Limited | Administrative & support | 2009 |
| Next Parts Ltd | Wholesale & retail | 2022 |
| Next Pulse Saas Ltd | Information & communication | 2025 |
| Next Recruitment Limited | Administrative & support | 2002 |
| Next Simple Business Ltd | Wholesale & retail | 2018 |
| Next Space Living Ltd | Real estate | 2020 |
| Next Star Culture Ltd | Wholesale & retail | 2024 |
| Next Step Contracting Ltd | Construction | 2021 |
| Next Step Foods Ltd | Manufacturing | 2015 |
| Next Step Saas Ltd | Information & communication | 2025 |
| Next Step Talent Ltd | Administrative & support | 2024 |
| Next Steps Tutoring Ltd | Education | 2025 |
| Nextar Plant Nutrition Co., Limited | Agriculture & fishing | 2021 |
| Nextech Solutions Ltd | Information & communication | 2025 |
| Nextframe Limited | Administrative & support | 2024 |
| Nextgen Bathrooms Limited | Construction | 2026 |
| Nextgen DEV Limited | Information & communication | 2025 |
| Nextgen Ecom Ltd | Wholesale & retail | 2025 |
| Nextgen Fundraising Limited | Wholesale & retail | 2025 |