| Nortech Construction Limited | Construction | 2019 |
| North + Next Ltd | Professional & scientific | 2025 |
| North Ace Services Ltd | Wholesale & retail | 2023 |
| North AVE Store Ltd | Wholesale & retail | 2026 |
| North Builders (Nottingham) Limited | Construction | 2015 |
| North Costs Ltd | Professional & scientific | 2013 |
| North East Community Care Services Limited | Professional & scientific | 2018 |
| North Education Consulting Ltd | Education | 2019 |
| North Fambridge Ltd | Wholesale & retail | 2022 |
| North Green Developments Ltd | Construction | 2019 |
| North Northamptonshire Care Ltd | Health & social care | 2021 |
| North Nottinghamshire Lift (Midco) Limited | Professional & scientific | 2003 |
| North Nottinghamshire Lift Company Limited | Administrative & support | 2003 |
| North Nottinghamshire Lift Project Company (NO.1) Limited | Construction | 2003 |
| North Notts Civils Limited | Construction | 2003 |
| North Notts Hearing Limited | Wholesale & retail | 2021 |
| North Ridge Pumps Limited | Manufacturing | 1998 |
| North Sea Fish Bar Ltd | Hospitality | 2024 |
| North Staffs Housing Limited | Real estate | 2009 |
| North Staffs Property Group Ltd | Real estate | 2024 |
| North Staffs Property Limited | Real estate | 2015 |
| North Star Catering Limited | Hospitality | 2022 |
| North Star Christmas Company Ltd | Administrative & support | 2023 |
| North Star Health and Wellness Ltd | Other services | 2026 |
| North Star Management & Media Limited | Information & communication | 2022 |
| North Star Military Figures Limited | Wholesale & retail | 2007 |
| North Steorra Limited | Financial services | 2026 |
| North to South Financial Services Ltd | Financial services | 2021 |
| North to South Wills & Estate Planning Ltd | Professional & scientific | 2023 |
| North Trade Services Ltd | Construction | 2020 |
| North Walsham Canal Company,Limited(The) | Professional & scientific | 1921 |
| Northage Enterprise Limited | Construction | 2016 |
| Northam Design Limited | Information & communication | 2006 |
| Northampton Print Finishers Limited | Manufacturing | 1979 |
| Northbloc Properties Ltd | Real estate | 2026 |
| Northbound Collective Ltd | Professional & scientific | 2026 |
| Northbound Risk & Design Advisory Limited | Information & communication | 2026 |
| Northcliffe (Derby) Ltd | Real estate | 2016 |
| Northcliffe Wolds Limited | Arts & recreation | 2025 |
| Northcross Education Services Limited | Education | 2002 |
| Northdown Demolition Limited | Construction | 2025 |
| Northdown Facilities Management Limited | Professional & scientific | 2025 |
| Northern Carpet Care Limited | Administrative & support | 2007 |
| Northern Cars Northumberland Limited | Transport & logistics | 2026 |
| Northern Lights Productions Limited | Information & communication | 2021 |
| Northern OIL Company Limited | Wholesale & retail | 1936 |
| Northfields Construction Ltd | Construction | 2024 |
| Northfields Fencing & Civils Ltd | Administrative & support | 2024 |
| Northfields Partnerships Ltd | Construction | 2025 |
| Northgate Automotive Ltd | Wholesale & retail | 2023 |
| Northgate Retails Ltd | Wholesale & retail | 2025 |
| Northhelm Group Ltd | Information & communication | 2025 |
| Northlight Films Ltd | Information & communication | 2010 |
| Northmark Property Group Ltd | Construction | 2026 |
| Northridge Mortgage Solutions Limited | Financial services | 2005 |
| Northstar Urban Design Limited | Professional & scientific | 2021 |
| Northstella Ltd | Arts & recreation | 2024 |
| Northstrong Ltd | Real estate | 1995 |
| Northwest Alliance Ltd | Professional & scientific | 2017 |
| Northwest Car and Van Hire Ltd | Administrative & support | 2025 |
| Northwest Re-Works Ltd | Information & communication | 2013 |
| Northwich V.E. Limited | Other services | 1996 |
| Northwood Nottingham Limited | Real estate | 2003 |
| Norton Imperial Holdings Ltd | Real estate | 2025 |
| Norton Wealth Management Ltd | Professional & scientific | 2013 |
| Norton’S Transport Ltd | Transport & logistics | 2025 |
| Norvid Company Ltd | Professional & scientific | 2016 |
| Norvyn Ltd | Professional & scientific | 2026 |
| Norwich Spinal Health Limited | Health & social care | 2002 |
| Norwick Energy Resources Ltd | Wholesale & retail | 2012 |
| Norwood Management (Southwell) Limited | Real estate | 2001 |
| Nosadaniel Care Limited | Health & social care | 2019 |
| Nosdivad Ltd | Construction | 2017 |
| Nosh-Afrik Limited | Hospitality | 2023 |
| Nostalgia Care Ltd | Public administration | 2025 |
| Nostalgia Solutions Ltd | Professional & scientific | 2026 |
| NOT Guilty Desserts Ltd | Wholesale & retail | 2023 |
| NOT Guilty Food Co Ltd | Administrative & support | 2018 |
| NOT Just Cooling Limited | Manufacturing | 2008 |
| NOT My First Rodeo Ltd | Professional & scientific | 2025 |
| NOT the Motive Limited | Wholesale & retail | 2025 |
| Notac Ltd | Information & communication | 2021 |
| Notari Limited | Real estate | 2023 |
| Notch UP Limited | Wholesale & retail | 2025 |
| Note Property Limited | Real estate | 2016 |
| Noth Group Limited | Professional & scientific | 2022 |
| Nothing Creative Ltd | Wholesale & retail | 2023 |
| Notschamoun Managements Ltd | Professional & scientific | 2026 |
| Nott Another CIC | Arts & recreation | 2025 |
| Nottcor 7 Limited | Professional & scientific | 1996 |
| Notteaham Ltd | Wholesale & retail | 2025 |
| Nottinfra Limited | Information & communication | 2026 |
| Notting Imports Ltd | Wholesale & retail | 2025 |
| Nottingham & Nottinghamshire United Services Club Limited(The) | Other services | 1921 |
| Nottingham (One) UK Limited | Real estate | 2018 |
| Nottingham (UK) Cleaning Services Limited | Professional & scientific | 2001 |
| Nottingham Abode Limited | Real estate | 2019 |
| Nottingham Academy for Development and Integration CIC | Education | 2024 |
| Nottingham Accommodation Ltd | Real estate | 2025 |
| Nottingham Accountants Limited | Professional & scientific | 2017 |