| New Sole Plaice Fish Bar Limited | Hospitality | 2019 |
| New Start Living Investments Limited | Financial services | 2023 |
| New State Solutions Limited | Administrative & support | 2012 |
| New Street Dental Care Ltd | Health & social care | 2015 |
| New Wave Brasserie, Bar and Fish Market Ltd | Hospitality | 2022 |
| New Wave Fish Shop Limited | Wholesale & retail | 2008 |
| New Wave Seafood Limited | Hospitality | 2009 |
| New Web Design Limited | Information & communication | 2013 |
| New World Muzic Ltd | Arts & recreation | 2019 |
| New World Sound Ltd | Arts & recreation | 2024 |
| New York Slice Ltd | Hospitality | 2021 |
| Neways Ltd | Information & communication | 2018 |
| Newborn Moments Limited | Professional & scientific | 2016 |
| Newcat Plant Services Limited | Manufacturing | 1994 |
| Newcheltenhamsushi Ltd | Hospitality | 2022 |
| Newcombe Residential Limited | Real estate | 2012 |
| Newcroft Homes (South) Ltd | Construction | 2025 |
| Newcroft Homes Ltd | Construction | 2015 |
| Newick Commodities Limited | Wholesale & retail | 2021 |
| Newish Limited | Wholesale & retail | 2025 |
| Newland Asset Management Ltd | Real estate | 2023 |
| Newland Gardens Cheltenham Management Company Limited | Households | 2018 |
| Newland Park Block C (Management) Co Ltd. | Households | 2007 |
| Newland Park Blocks a & B (Management) Company Limited | Households | 2006 |
| Newleaf Kitchens Limited | Wholesale & retail | 2016 |
| Newman & Ellis Ltd | Construction | 2025 |
| Newport-Black Developments Limited | Construction | 2007 |
| Newton Accountants Limited | Professional & scientific | 2013 |
| Newton Bright Ltd | Education | 2019 |
| Newton House (Lansdown Crescent) Management Company Limited | Households | 1981 |
| Newtown Farm Solar Limited | Energy | 2023 |
| Nexa ADS Ltd | Administrative & support | 2023 |
| Nexai Labs Ltd | Professional & scientific | 2025 |
| Nexary Ltd | Information & communication | 2024 |
| Nexient Ltd | Information & communication | 2026 |
| Nexilis Consulting Ltd | Professional & scientific | 2020 |
| Nexpath Consultants Ltd | Information & communication | 2025 |
| Next Level Product Consulting Limited | Professional & scientific | 2026 |
| Next Phase Properties Limited | Real estate | 2022 |
| Next Phase Property Holdings Limited | Real estate | 2022 |
| Next Wave Goods Ltd | Wholesale & retail | 2025 |
| Nextgen Care Recruitment Limited | Administrative & support | 2023 |
| Nextgen Properties Cheltenham Ltd | Real estate | 2024 |
| Nextrep Fitness Ltd | Other services | 2023 |
| Nexttech Solutions Ltd | Information & communication | 2023 |
| Nexus Building Services Limited | Construction | 2024 |
| Nexus Collective Limited | Other services | 2021 |
| Nexus ERP Limited | Administrative & support | 2022 |
| Nexus Pivotal Limited | Professional & scientific | 2011 |
| Nexus Property Maintenance Limited | Construction | 2025 |
| Nexus Resolution Ltd | Hospitality | 2024 |
| Nexus Squared CIC | Arts & recreation | 2026 |
| Nfjt Limited | Extraterritorial | 2025 |
| Nflh Courier Ltd | Transport & logistics | 2021 |
| NFP Experts Limited | Administrative & support | 2025 |
| Ngai Asset Management Limited | Administrative & support | 2001 |
| NGB (Cheltenham) Limited | Construction | 2005 |
| NGB Holdings Limited | Financial services | 2016 |
| Ngnd 2018 Limited | Transport & logistics | 2018 |
| NGR Services Ltd | Information & communication | 2018 |
| Ngst Services Limited | Information & communication | 2011 |
| NH Business Gateway Ltd | Administrative & support | 2022 |
| NH Education Holdings Ltd | Financial services | 2023 |
| NHM Consultants Limited | Professional & scientific | 2011 |
| NIA House Ltd | Real estate | 2026 |
| Nicalc Ltd | Real estate | 2023 |
| Nicchia Ltd | Wholesale & retail | 2022 |
| Niche Design and Build SW Ltd | Construction | 2022 |
| Nicholas Pomme Limited | Construction | 1969 |
| Nicholas Tempest Limited | Wholesale & retail | 2025 |
| Nicholas White Hair Dressing Ltd | Other services | 2015 |
| Nicholson Mclaren Aviation Limited | Manufacturing | 2006 |
| Nicholson Mclaren Engineering Limited | Extraterritorial | 2006 |
| Nicholson Mclaren Engines (UK) Limited | Manufacturing | 2025 |
| Nicholson Trading Limited | Professional & scientific | 2015 |
| Nicholson-Smith Services Ltd | Professional & scientific | 2025 |
| Nick Bevan Consulting Limited | Professional & scientific | 2007 |
| Nick Laing Limited | Real estate | 2012 |
| Nick Puffett ANP Ltd | Health & social care | 2017 |
| Nick Rowe Law Ltd | Professional & scientific | 2024 |
| Nick's Care Services Ltd | Health & social care | 2020 |
| Nickcabs@ Limited | Transport & logistics | 2026 |
| Nicki Blanc Limited | Other services | 2026 |
| Nicki Ryder Wellness Ltd. | Arts & recreation | 2016 |
| Nicki Williams Coaching Ltd | Professional & scientific | 2023 |
| Nigel Blair Property Ltd | Real estate | 2020 |
| Nigel Errington-Smith & Company (Lettings) Ltd | Real estate | 2008 |
| Nigel Rees Accountancy Limited | Professional & scientific | 2005 |
| Night & Day Productions Limited | Professional & scientific | 2003 |
| Nijen Control System Services Limited | Information & communication | 1998 |
| Nila's Kitchen Limited | Hospitality | 2012 |
| Nimbus Intelligence Limited | Information & communication | 2026 |
| Nina Douglas PR Ltd | Professional & scientific | 2016 |
| Nina Suess Ltd | Other services | 2017 |
| Nina’S Cleaner’S Ltd | Administrative & support | 2023 |
| Nineteen Event Services Limited | Arts & recreation | 2019 |
| Ninety Careers Limited | Professional & scientific | 2021 |
| Ninety Nine Trees Limited | Real estate | 2020 |
| Ninfield NG Limited | Energy | 2023 |
| Ninth Financial Limited | Professional & scientific | 2016 |