| Needham Fibden Farm Limited | Agriculture & fishing | 1998 |
| Nella Ryan (Construction) Ltd | Construction | 2021 |
| Nella Ryan (Pershore Road) Limited | Real estate | 2021 |
| Nella Ryan (Project Knowle) Limited | Real estate | 2024 |
| Nella Ryan (Weirside) Ltd | Real estate | 2025 |
| Nella Ryan Ltd | Construction | 2020 |
| Nelly NOO - Baby, Toddler and Maternity Ltd | Wholesale & retail | 2019 |
| Nelly’S Yard Cafe Limited | Hospitality | 2025 |
| Nelson Griffiths Recruitment and Transition Ltd | Administrative & support | 2009 |
| Netlipcell Ltd | Wholesale & retail | 2018 |
| Neurodtx Alvis Ltd | Professional & scientific | 2026 |
| New Ball Game Limited | Administrative & support | 2016 |
| New Beacon Fish Bar Limited | Hospitality | 2021 |
| New Street Management Limited | Real estate | 2006 |
| New Sun YIP Limited | Wholesale & retail | 2019 |
| Newbe Limited | Administrative & support | 2007 |
| Newbury Motors (Droitwich) Limited | Wholesale & retail | 2000 |
| Newit (Property) Limited | Administrative & support | 2010 |
| Newlyn Homes Group Limited | Administrative & support | 2018 |
| Newlyn Homes Investments Limited | Administrative & support | 2018 |
| Newlyn Homes Limited | Real estate | 2001 |
| Newlyn Homes Management Ltd | Real estate | 2013 |
| Newman Consulting (Midlands) Ltd | Health & social care | 2022 |
| Newman’S Fine Foods Limited | Hospitality | 2008 |
| Newstar London Limited | Wholesale & retail | 2015 |
| Nexfort Data Limited | Information & communication | 2025 |
| Nextgenmastifftraining Ltd | Agriculture & fishing | 2023 |
| Nexus Property Intermediaries Limited | Administrative & support | 2025 |
| NFA Developments Ltd | Construction | 2020 |
| Niche Barberz Ltd | Other services | 2023 |
| Nicol & Co Estate Agents Limited | Real estate | 2010 |
| Nicol & Co Land and New Homes Limited | Real estate | 2017 |
| Nicol & Co Lettings Limited | Real estate | 2017 |
| Nicol Holdings Limited | Financial services | 2017 |
| Nicol Investments Limited | Real estate | 2021 |
| Nicpic Limited | Administrative & support | 2019 |
| Niigata Business Investments Limited | Administrative & support | 2019 |
| Nijjar Properties Limited | Construction | 2015 |
| Nimbility Ltd | Other services | 2019 |
| Ninaa Ltd | Information & communication | 2018 |
| Niroone Ltd | Professional & scientific | 2021 |
| Nisha KAR Limited | Administrative & support | 2019 |
| Nivi Consultancy Ltd | Information & communication | 2020 |
| NJR Accountancy Services Limited | Professional & scientific | 2001 |
| NLG Hygiene and Safety Consultancy Limited | Professional & scientific | 2012 |
| NLH Group Ltd | Health & social care | 2022 |
| Nmetislabs Ltd | Information & communication | 2020 |
| NO Glass Ceilings Limited | Administrative & support | 2013 |
| Nobles Construction Limited | Construction | 1995 |
| Noir Property Club Ltd | Education | 2025 |
| NON Compete Limited | Professional & scientific | 2024 |
| Normech Interiors (Holdings) Limited | Administrative & support | 2010 |
| North Loop Autohaus Ltd | Wholesale & retail | 2017 |
| North Loop Automotive Ltd | Wholesale & retail | 2020 |
| North Loop Detailing Ltd | Wholesale & retail | 2020 |
| North Worcestershire Freight Services Limited | Transport & logistics | 2016 |
| North Wychavon Community Projects CIC | Other services | 2024 |
| Northfield HC Properties Limited | Real estate | 1999 |
| Northwesthgvadvancementtraining Ltd | Transport & logistics | 2026 |
| Noryobex Ltd | Transport & logistics | 2019 |
| Nosy Candles Ltd | Other services | 2020 |
| NOT Your Average 1 Ltd | Hospitality | 2024 |
| Notfinal Productions Ltd | Information & communication | 2024 |
| Nova Landscaping Limited | Construction | 2024 |
| Nreg Holdings Ltd | Real estate | 2023 |
| NT Offshore Wind Services Ltd | Construction | 2024 |
| Ntechbiz Ltd | Information & communication | 2020 |
| Nuhome Group Limited | Financial services | 2025 |
| Nuhome Properties Limited | Real estate | 2021 |
| Number Thirty Limited | Real estate | 2025 |
| Nuthurst Grange Country House Hotel Group Limited | Hospitality | 2022 |
| Nuthurst Grange Country House Hotel Limited | Hospitality | 2022 |
| Nuthurst Grange Country House LLP | | 2019 |
| NUTRITION4SPORT Limited | Administrative & support | 2019 |
| O & S Nurseries Ltd | Health & social care | 2015 |
| Oak Steadfast Limited | Real estate | 2022 |
| Oakfield Herbal Medical Practice Limited | Health & social care | 2022 |
| Oakley Accountancy Holdings Limited | Administrative & support | 2016 |
| Oakley Accountancy Limited | Administrative & support | 1996 |
| Oakley F.P.C. Limited | Professional & scientific | 2007 |
| Oakley Independent Advisers Limited | Financial services | 1999 |
| Oakley Management Support Limited | Administrative & support | 2011 |
| Oakley Secretarial Services Limited | Administrative & support | 1996 |
| Oakley Tax Investigation Services Limited | Professional & scientific | 2006 |
| Oakley Wills Limited | Administrative & support | 2009 |
| Oceans Rose Limited | Hospitality | 2022 |
| OCR Properties Limited | Real estate | 2013 |
| OFF the Cobbles Productions Limited | Arts & recreation | 2021 |
| Officient Contract Cleaning Ltd | Administrative & support | 2022 |
| Offline Marketing Limited | Information & communication | 2019 |
| OH SO B Limited | Wholesale & retail | 2018 |
| OLA Ince Ltd | Arts & recreation | 2022 |
| Olby Investments Limited | Real estate | 2017 |
| Olby Mechanical Services Ltd. | Construction | 2022 |
| Old Coronation School Limited | Real estate | 2022 |
| Old Rectory Farm Enterprises Limited | Agriculture & fishing | 2017 |
| Oldfields of Ombersley Limited | Wholesale & retail | 1975 |
| OLG Homes Limited | Real estate | 2018 |
| Oliver Chester Construction Services Limited | Real estate | 2022 |
| Oliver James Property (Selly Oak) Ltd | Real estate | 2025 |