| Newby Castleman LLP | | 2017 |
| Newby Castleman Wealth Management Limited | Financial services | 2018 |
| Newenglish Studio Limited | Professional & scientific | 2021 |
| Newera Health Care Ltd | Health & social care | 2016 |
| Newfound Property Developments Limited | Real estate | 2026 |
| Newgamezone Limited | Wholesale & retail | 2022 |
| Newgen Investments Limited | Real estate | 2016 |
| Newhall Store Ltd | Wholesale & retail | 2016 |
| Newham Company Ltd | Real estate | 2022 |
| Newhill Logistics Ltd | Transport & logistics | 2014 |
| Newitt Brickwork Limited | Construction | 2024 |
| Newlight Properties Limited | Extraterritorial | 1998 |
| Newline Civil Engineering Limited | Construction | 1994 |
| Newline Services Limited | Transport & logistics | 2015 |
| Newman Contracting Ltd | Construction | 2011 |
| Newman Digital Ltd | Information & communication | 2025 |
| Newmanconsultants Limited | Professional & scientific | 2011 |
| Newmarket Hemps Ltd | Wholesale & retail | 2025 |
| Newnest Properties Ltd | Real estate | 2025 |
| Newplan Solutions Limited | Wholesale & retail | 2014 |
| Newpool Consulting and Research Limited | Health & social care | 2013 |
| Newport Road Development Limited | Construction | 2021 |
| Newrise Drylining Ltd | Construction | 2018 |
| Newrizon Creative Ltd. | Wholesale & retail | 2021 |
| Newscity Limited | Manufacturing | 1996 |
| Newscope Investments Limited | Manufacturing | 2000 |
| Newstead Meadow Limited | Other services | 2012 |
| Newstone Enterprises Limited | Professional & scientific | 2025 |
| Newtams Homes Ltd | Health & social care | 2022 |
| Newtech Marketing Network Limited | Administrative & support | 1997 |
| Newtech Powder Coaters Limited | Manufacturing | 2003 |
| Newton Baker Properties Limited | Wholesale & retail | 1955 |
| Newton Property Solutions Limited | Professional & scientific | 2011 |
| Newtonian Limited | Professional & scientific | 1998 |
| NEWTONS4TH Ltd | Manufacturing | 1997 |
| Newtown Linford Cricket Club Holdings Ltd | Real estate | 2026 |
| Newtown Living Limited | Extraterritorial | 2021 |
| Newtown Street Ltd | Real estate | 2019 |
| Newtriks Ltd | Information & communication | 2009 |
| NEX ARC Ltd | Wholesale & retail | 2025 |
| Nexa Development Ltd | Professional & scientific | 2025 |
| Nexa VOX Ltd | Professional & scientific | 2025 |
| NEXA369 Limited | Wholesale & retail | 2026 |
| Nexaclimb Systems Limited | Information & communication | 2025 |
| Nexacore Consulting Ltd | Information & communication | 2026 |
| Nexalogic Consulting Limited | Information & communication | 2025 |
| Nexarvo Ltd | Wholesale & retail | 2026 |
| Nexbuild Networks Ltd | Construction | 2026 |
| Nexchem Ltd | Wholesale & retail | 2011 |
| Nexco Technology Limited | Professional & scientific | 2011 |
| Nexentra Moves Ltd | Transport & logistics | 2026 |
| Nexgen Ball Holdings Ltd | Financial services | 2025 |
| Nexgen Bazaar Limited | Wholesale & retail | 2023 |
| Nexgenx Limited | Wholesale & retail | 2025 |
| Nexify Infosystems Ltd. | Administrative & support | 2022 |
| Nexio Digital Solutions Ltd | Information & communication | 2023 |
| Nexion Consulting Ltd | Professional & scientific | 2024 |
| Nexis Developments Limited | Construction | 2024 |
| Nexis Group Limited | Construction | 2024 |
| Nexis Projects Limited | Construction | 2024 |
| Nexivo SM Service Limited | Construction | 2026 |
| Nexora Digital Trading Ltd | Wholesale & retail | 2026 |
| Nexpad Mortgages Limited | Financial services | 2026 |
| Nexship Logistics Ltd | Transport & logistics | 2025 |
| Next Beauty Limited | Wholesale & retail | 2014 |
| Next Big Leap Limited | Information & communication | 2007 |
| Next Big WIN Limited | Education | 2022 |
| Next Car Source Limited | Wholesale & retail | 2012 |
| Next Care Ltd | Health & social care | 2014 |
| Next Day Bullion Ltd | Wholesale & retail | 2026 |
| Next Day Parts Ltd | Wholesale & retail | 2014 |
| Next GEN Prodata Solutions Ltd | Information & communication | 2024 |
| Next GEN Strategies (SJH) Ltd | Professional & scientific | 2024 |
| Next Generation Insulation (Midlands) Ltd | Construction | 2024 |
| Next Generation Insulation Ltd | Construction | 2023 |
| Next Group PLC | Financial services | 2017 |
| Next Holdings Limited | Professional & scientific | 1891 |
| Next Level Coaching Ltd | Information & communication | 2025 |
| Next Level Sales Ltd | Wholesale & retail | 2019 |
| Next PLC | Professional & scientific | 2002 |
| Next Retail Limited | Wholesale & retail | 2002 |
| Next Ride Motors Limited | Wholesale & retail | 2025 |
| Next Solution Limited | Information & communication | 2001 |
| Next Solutions Ltd | Information & communication | 2018 |
| Next Sourcing (UK) Limited | Extraterritorial | 2004 |
| Next Step Acquisitions Limited | Real estate | 2019 |
| Next Step Business Support Ltd | Professional & scientific | 2025 |
| Next Steps Supported Living Limited | Health & social care | 2020 |
| Next the Sea Limited | Wholesale & retail | 2021 |
| Nextbridge Global Education Ltd | Professional & scientific | 2025 |
| Nextech Hire Ltd | Administrative & support | 2024 |
| Nextera Property Limited | Construction | 2023 |
| Nextgen Air Conditioning Services Limited | Energy | 2010 |
| Nextgen DNA Ltd | Information & communication | 2026 |
| Nextgen Healthcare Services Ltd. | Health & social care | 2022 |
| Nextgen Performance Limited | Other services | 2024 |
| Nextgen Pickleball Ltd | Arts & recreation | 2025 |
| Nextrove UK Ltd | Information & communication | 2023 |
| Nextscale Growth Ltd | Professional & scientific | 2024 |
| Nexus Developments Ltd | Construction | 2022 |