| Nelsands Limited | Watford | 2023 |
| Nelson Debarber Ltd | Oldham | 2019 |
| Nelson Training and Risk Management Ltd | Prescot | 2024 |
| Nembhard Healthcare Limited | Gloucester | 2025 |
| NEN Healthcare Solutions Ltd | Telford | 2020 |
| Nena Community Care and Support Hub Limited | Peterborough | 2024 |
| NEO Safer Care Ltd | Northampton | 2023 |
| Neo-Resonance and Coaching Ltd | Enfield | 2019 |
| Neoact Ltd | Nottingham | 2025 |
| Neptune Edge Maritime Holdings Ltd | London | 2025 |
| NES Fire Ltd | London | 2021 |
| Nescotland Fire Risk Assessors Ltd | Inverurie | 2017 |
| Nester Care Services NCS Ltd | Lisburn | 2025 |
| Network of Advisory and Support CIC | Edinburgh | 2024 |
| Neurocompass Ltd | London | 2025 |
| Neuroinclusive Link Limited | St. Neots | 2024 |
| Neurom Health Private Ltd | London | 2025 |
| Neuroprescribe Ltd | Dagenham | 2026 |
| Nevaeh Care and Support Services Ltd | Nottingham | 2024 |
| Neville Blackwood Ltd | Newport Pagnell | 2011 |
| New Beginning Care Services Limited | London | 2024 |
| New Century Consultants Limited | Enfield | 2000 |
| New Dialogue | Kingston Upon Thames | 2013 |
| New Frequency Ltd | Huntingdon | 2026 |
| New Future Care CIC | Birmingham | 2025 |
| New Homes Ombudsman Service Limited | Hemel Hempstead | 2021 |
| New Horizon Health and Social Care Ltd | Feltham | 2025 |
| New Horizons Health and Care Services Ltd | Reading | 2026 |
| New Mills Youth and Community Project C.I.C. | High Peak | 2020 |
| New Paradigm Advisory Limited | Tonbridge | 2023 |
| New Soul New Body Limited | Birmingham | 2025 |
| New Step Dynamics Limited | Barking | 2021 |
| New Vision Care Services Limited | Chester Le Street | 2018 |
| New Vision International Education Group Ltd | London | 2025 |
| Newcastle Business College Ltd | Ruislip, | 2019 |
| Newclays (UK) Healthcare Limited | Beckenham | 2021 |
| Newco January 2021 Ltd | Stratford-Upon-Avon | 2019 |
| Newflame Fire Equipment Co. Limited | Peterborough | 1981 |
| Newgate&Warwick Ltd | London | 2024 |
| Newham Smart Project Ltd | London | 2025 |
| Newmedica EYE Care Ltd | Milton Keynes | 2017 |
| Newness Care Limited | London | 2022 |
| Newns Safety Solutions Ltd | Prescot | 2019 |
| Newpath Social Care Ltd | Corby | 2021 |
| Newport Business Against Crime Ltd | Newport | 2009 |
| Newquay Fire Ltd | Newquay | 2017 |
| Newquay Fire Protection Ltd | Newquay | 2018 |
| Newton Homecare & Support Ltd | Newton Abbot | 2025 |
| Nexas ERG Ltd | Mold | 2024 |
| Next GEN Fire Solutions Ltd | Grimsby | 2026 |
| Next Level Support Stockport Ltd | Stockport | 2025 |
| Next Step Support ( MK ) Ltd | Borehamwood | 2021 |
| Nextgen Care Team Ltd | Moreton | 2026 |
| Nextgen Consultancy Group Ltd | Lancaster | 2025 |
| Nextgen Fire Protection Limited | Stoke-On-Trent | 2024 |
| Nexus Law Limited | London | 2010 |
| Nexus Performance and Health Ltd | Dundee | 2026 |
| Nexus Worx Limited | Grimsby | 2025 |
| Nfrar Ltd | Bolton | 2025 |
| Ngcc (Nurturing Growth & Compassionate Care) Recruitment Ltd | Reading | 2025 |
| Ngnv Ltd | Stevenage | 2023 |
| Nia-Kika Limited | Clacton-On-Sea | 2019 |
| Nicard Care Solutions Ltd | Rugby | 2024 |
| Nichem Limited | Romford | 2023 |
| Nichole Laed Ltd | Portsmouth | 2022 |
| Nicholls Engineering Ltd | Warrington | 2023 |
| Nick-Nack Physio Ltd | Leighton Buzzard | 2023 |
| Nickolas Gardner Limited | Warrington | 2014 |
| Nickwilsondefence Limited | Barnsley | 2023 |
| Nicnat Limited | Halifax | 2022 |
| Nicwozza Limited | Manchester | 2020 |
| Nidd Fire Protection Limited | Newport | 2023 |
| Niftees Limited | London | 2022 |
| Nigeria Nationals Communities, London Limited | London | 2014 |
| Nigerian Community Wigan Borough CIC | Wigan | 2024 |
| Nightingale Care at Home Ltd | Radstock | 2023 |
| Nightingale F Limited | Eastbourne | 2024 |
| Nightingale Social Care Ltd | Sheffield | 2018 |
| Nijero Groups Limited | Bristol | 2023 |
| Nikki Ayliff Care Consultancy Ltd | Warrington | 2025 |
| Nile Lotus Ltd | London | 2021 |
| Nimssie Ltd | Nottingham | 2024 |
| Nimts Services Ltd | London | 2024 |
| Nina Brainchild Ltd | London | 2025 |
| Ninah Care Services Limited | Bolton | 2025 |
| Nine Consultancy UK Ltd | Taunton | 2023 |
| Ninehouses Safety Services Limited | Mold | 2012 |
| Nioa UK Ltd | Bristol | 2024 |
| Nisana Ltd | Dudley | 2022 |
| Nisha N Patel Limited | Halifax | 2023 |
| Nishka Pharma Services Ltd | Slough | 2019 |
| Nissi Glorious Ltd | Oldham | 2025 |
| Nissi Healthcare Services Limited | Stevenage | 2021 |
| Nissi Homes Limited | Wolverhampton | 2010 |
| Nitanda Ekhukhulu Ltd | Waltham Cross | 2024 |
| Nitdas Ltd | Letchworth Garden City | 2026 |
| Niwat Wellness Limited | London | 2024 |
| NJ Chance Ltd | London | 2022 |
| Njabsltd Limited | Walsall | 2020 |
| NJH Psychology Services Limited | Thornton Cleveleys | 2023 |