| Nigel Hull Fishing Company Limited | Agriculture & fishing | 2018 |
| Nigerian Community Tees Valley (Nicot) C.I.C. | Education | 2024 |
| Niki Brothers Limited | Wholesale & retail | 2025 |
| Nikolas Banda Logistics Limited | Transport & logistics | 2026 |
| Ninetyonejewellery Limited | Manufacturing | 2025 |
| Nippybot Limited | Manufacturing | 2025 |
| Nissa Group Ltd | Construction | 2023 |
| Nite Light CIC | Wholesale & retail | 2020 |
| Nitish Traders Ltd | Wholesale & retail | 2025 |
| Nivaria Services Ltd | Real estate | 2025 |
| Nivlas Property Group Ltd | Real estate | 2025 |
| Nixon Group Holdings Limited | Financial services | 2023 |
| Nixon International Limited | Wholesale & retail | 2025 |
| Nixon Properties (NE) Limited | Real estate | 2018 |
| Nixsy Limited | Professional & scientific | 2026 |
| NJH1 Ltd | Professional & scientific | 2024 |
| NJT Holdings Partnership LLP | | 2025 |
| NL Trading Limited | Wholesale & retail | 2013 |
| Nlbts Limited | Information & communication | 2021 |
| NLG Communications Ltd | Construction | 2021 |
| Nlt-Windpower Ltd | Construction | 2025 |
| NM Consultancy (NE) Limited | Financial services | 2015 |
| NM Optics Limited | Information & communication | 2020 |
| NMO Group Limited | Hospitality | 2024 |
| NN Foods Middlesbrough Ltd | Hospitality | 2024 |
| Nnmk Engineering Ltd | Professional & scientific | 2019 |
| NO Color Ltd | Manufacturing | 2024 |
| NO Limits Security Ltd | Financial services | 2023 |
| Noah NE Ltd | Hospitality | 2025 |
| Noble Reed Ltd | Wholesale & retail | 2025 |
| Noble Rugs Limited | Wholesale & retail | 2025 |
| Nocomunicat Ltd | Wholesale & retail | 2026 |
| Nola Bakery and Flex Limited | Manufacturing | 2024 |
| Nola Scott Limited | Hospitality | 2023 |
| Nomad Interactive Limited | Information & communication | 2026 |
| Nomos Management Solutions PTY Ltd | Professional & scientific | 2024 |
| Noms Noms Express Ltd | Hospitality | 2024 |
| Noodleboxes Ltd | Hospitality | 2023 |
| Noor Foods Retail Ltd | Wholesale & retail | 2021 |
| Noor Middlesbrough Ltd | Hospitality | 2023 |
| Noor N E Properties Ltd | Real estate | 2023 |
| Nooriz Limited | Professional & scientific | 2019 |
| Noovo Creative Ltd | Manufacturing | 2011 |
| Nops Social Limited | Hospitality | 2013 |
| Nordic Ice Ltd | Wholesale & retail | 2026 |
| Norlek Group Ltd | Construction | 2024 |
| Norman Mark Limited | Construction | 2023 |
| Norman Reed Limited | Construction | 2013 |
| Normanby Barbers (NE) Ltd | Other services | 2025 |
| Normanby Engineering Limited | Professional & scientific | 2017 |
| Normanby Foods TS6 Ltd | Wholesale & retail | 2026 |
| Normanby Hall Cricket Club Limited the | Arts & recreation | 1972 |
| Normanby Pizzeria Ltd | Hospitality | 2024 |
| Normanby Road Motors Limited | Wholesale & retail | 2009 |
| Normanby Wharf Port Services Ltd | Transport & logistics | 2020 |
| North Cyber Security Limited | Other services | 2019 |
| North Digital Ltd | Information & communication | 2019 |
| North East AB Limited | Construction | 2025 |
| North East Academy Limited | Other services | 2016 |
| North East Auto Solutions Ltd | Wholesale & retail | 2025 |
| North East Autocare Ltd | Wholesale & retail | 2018 |
| North East Branding Ltd | Manufacturing | 2025 |
| North East Building and Driveway Services Ltd | Construction | 2025 |
| North East Colour Coatings Ltd | Construction | 2011 |
| North East Dino Events Ltd | Arts & recreation | 2025 |
| North East Fibreglass (Fabrication & Design) Limited | Manufacturing | 2009 |
| North East Granite and Stone Repairs Ltd | Manufacturing | 2020 |
| North East Halal Poultry Ltd | Wholesale & retail | 2024 |
| North East Hire Ltd | Administrative & support | 2023 |
| North East Property Claims Limited | Other services | 2023 |
| North East Property Refurbs Limited | Construction | 2025 |
| North East Scaffolding Ltd | Construction | 2026 |
| North East Site Services (Adaptations) Ltd | Administrative & support | 2022 |
| North East Trade Plate Driven Limited | Transport & logistics | 2025 |
| North Grill Cosham Ltd | Hospitality | 2021 |
| North Grill Limited | Hospitality | 2019 |
| North Infosec Testing Ltd | Information & communication | 2012 |
| North Lakes Foods Limited | Manufacturing | 2002 |
| North Riding County Football (3G Facility) Limited | Arts & recreation | 2025 |
| North Riding County Football Association Limited | Arts & recreation | 2001 |
| North Sea Inspection Services Limited | Professional & scientific | 2025 |
| North Shore Bathroom & Design Management Ltd | Manufacturing | 2026 |
| North Street MOT and Service Centre Ltd | Wholesale & retail | 2025 |
| North Technical Limited | Professional & scientific | 2013 |
| North West Roofing & Fascias Ltd | Construction | 2024 |
| North Yield Limited | Real estate | 2025 |
| North Yorkshire Brewing Company Limited | Manufacturing | 2017 |
| North Yorkshire Coast Commercial Limited | Real estate | 2025 |
| North Yorkshire Companion Care Ltd | Administrative & support | 2024 |
| North Yorkshire Consultancy Services Ltd | Professional & scientific | 2003 |
| North Yorkshire Cottages Ltd | Real estate | 2022 |
| North Yorkshire Event Company Ltd | Hospitality | 2025 |
| North Yorkshire Extensions Ltd | Construction | 2026 |
| North Yorkshire Healthcare Limited | Professional & scientific | 2025 |
| North Yorkshire Homes Limited | Construction | 2018 |
| North Yorkshire Landscape & Garden Services Limited | Administrative & support | 2016 |
| North Yorkshire Plastics Limited | Professional & scientific | 2019 |
| North Yorkshire Project Management Ltd | Professional & scientific | 2019 |
| North Yorkshire Psychological Therapies Ltd | Other services | 2014 |
| North Yorkshire Specialist Vehicles Ltd | Wholesale & retail | 2020 |