| Northants Gastroenterology Practice Limited | Health & social care | 2016 |
| Northbolt Ltd | Professional & scientific | 2025 |
| Northcote Property Holdings Ltd | Real estate | 2025 |
| Northcote Property Limited | Real estate | 2015 |
| Northcote Techno Ltd | Health & social care | 2016 |
| Northcott Perfection Ltd | Transport & logistics | 2014 |
| Northern Cobbler Limited | Manufacturing | 2010 |
| Northern Cobbler Online Ltd | Wholesale & retail | 2016 |
| Northern Cobbler Retail Ltd | Wholesale & retail | 2016 |
| Northern Soul Design Ltd | Manufacturing | 2024 |
| Northern Supply Solutions Ltd | Transport & logistics | 2017 |
| Northfield Property Limited | Real estate | 2016 |
| Northfields and District Play Association (Playbarn) | Education | 2004 |
| Northlight I.T. Limited | Information & communication | 1998 |
| Northline Project Delivery Ltd | Information & communication | 2026 |
| Northmed Limited | Professional & scientific | 2019 |
| Northons Lane Management Company Limited | Households | 2019 |
| Northrepps Surveying Ltd | Professional & scientific | 2019 |
| Northside Bikes Community Projects CIC | Wholesale & retail | 2023 |
| Northside Bikes Ltd | Wholesale & retail | 2023 |
| Northstar Windows Limited | Construction | 2002 |
| Northvale Estates Limited | Real estate | 2025 |
| Northwest Insulations Ltd | Manufacturing | 2008 |
| Northwood (Leicester) Limited | Real estate | 2001 |
| Norton Clark Ltd | Professional & scientific | 2018 |
| Norton Facilities Ltd | Manufacturing | 2023 |
| Norton Housing and Support Ltd | Health & social care | 1984 |
| Norton Investing Limited | Financial services | 2014 |
| Norton Kwik Cabs Ltd | Extraterritorial | 2019 |
| Nortum Ltd | Wholesale & retail | 2025 |
| Norvix Builder Ltd | Construction | 2026 |
| Norwest 1988 Ltd | Wholesale & retail | 2016 |
| Norwich Pharma Limited | Health & social care | 2025 |
| Norwoodside Logistics Ltd | Transport & logistics | 2014 |
| Nosh Junction Ltd | Hospitality | 2025 |
| Nostalgia Ventures Ltd | Wholesale & retail | 2024 |
| NOT Fine in School CIC | Information & communication | 2021 |
| Notarised Limited | Professional & scientific | 2024 |
| Notepad Wisdom CIC | Education | 2026 |
| Notion Management Limited | Administrative & support | 2010 |
| Notley Haulage Ltd | Transport & logistics | 2014 |
| Notom Rest Ltd | Hospitality | 2026 |
| Notorious Fashion Ltd | Wholesale & retail | 2018 |
| Nottingham Boiler Shop Ltd | Professional & scientific | 2011 |
| Nottingham Trade Finishers Limited | Manufacturing | 2006 |
| Nottingham Vipers Limited | Arts & recreation | 2023 |
| Nottinghamshire Joinery Ltd | Construction | 2017 |
| Nottrapp Ltd | Hospitality | 2022 |
| Nottstrade Ltd | Construction | 2021 |
| NOU Tech Limited | Information & communication | 2020 |
| Nourish Pilates Ltd | Health & social care | 2025 |
| Nourlink Telecom Ltd | Information & communication | 2023 |
| Nourra-Ndams Ltd | Health & social care | 2025 |
| Nous Therapy Sports Massage Ltd | Other services | 2018 |
| Nova Asset Holdings Limited | Real estate | 2015 |
| Nova Asset Partners Limited | Real estate | 2022 |
| Nova Building 1 Ltd | Construction | 2026 |
| Nova Capital Partners Limited | Real estate | 2016 |
| Nova Clean Solution Ltd | Administrative & support | 2023 |
| Nova Craft Digital Ltd | Information & communication | 2026 |
| Nova Electrical Leicester Ltd | Wholesale & retail | 2024 |
| Nova Electrical Supplies Ltd | Wholesale & retail | 2020 |
| Nova Fitness Ltd | Arts & recreation | 2025 |
| Nova Heating and Plumbing Supplies Ltd | Wholesale & retail | 2025 |
| Nova Holdings Group Limited | Financial services | 2020 |
| Nova Incorporations Ltd | Real estate | 2025 |
| Nova Leicester Ltd | Real estate | 2026 |
| Nova Lyra Ltd | Health & social care | 2021 |
| Nova Media Group Ltd | Professional & scientific | 2024 |
| Nova Orion Limited | Health & social care | 2018 |
| Nova Polymers Ltd | Other services | 2025 |
| Nova Social Ltd | Professional & scientific | 2025 |
| Nova Software Studio Ltd | Information & communication | 2019 |
| Nova Textiles Limited | Manufacturing | 2019 |
| Nova Visio Limited | Professional & scientific | 2010 |
| Nova X Equities Ltd | Wholesale & retail | 2026 |
| Novaadfba Ltd | Wholesale & retail | 2025 |
| Novacart Commerce Ltd | Wholesale & retail | 2026 |
| Novacart Ltd | Wholesale & retail | 2025 |
| Novadot Ltd | Information & communication | 2011 |
| Novaher Property Group Ltd | Real estate | 2025 |
| Novahomestay Ltd | Hospitality | 2024 |
| Novaleigh Ltd | Administrative & support | 2025 |
| Novalia Properties Limited | Real estate | 2023 |
| Novalink Transport Ltd | Transport & logistics | 2026 |
| Novalux Design and Lighting Ltd | Wholesale & retail | 2024 |
| Novamedica Limited | Information & communication | 2025 |
| Novapath Logistics Limited | Transport & logistics | 2025 |
| Novaprint Ltd | Manufacturing | 2003 |
| Novara Homes Ltd | Real estate | 2025 |
| Novara Management Ltd | Hospitality | 2025 |
| Novara Property Investment Limited | Real estate | 2025 |
| Novastarz Ltd | Administrative & support | 2025 |
| Novatage Solutions Limited | Information & communication | 2025 |
| Novate Solutions Limited | Construction | 2015 |
| Novco Services (UK) Limited | Administrative & support | 2022 |
| Nove Craft Developments Ltd | Construction | 2026 |
| Novella Nights Ltd | Real estate | 2026 |
| Noveltiez Ltd | Wholesale & retail | 2024 |
| Novelty Ltd | Wholesale & retail | 2025 |