| North East Therapy Network Ltd | Health & social care | 2024 |
| North East Tongue-Tie Specialists Ltd | Health & social care | 2025 |
| North East Traders Limited | Wholesale & retail | 2026 |
| North East Training Ltd | Education | 2024 |
| North East Transport Services (Nets) Ltd | Transport & logistics | 2015 |
| North East Travels Ltd | Administrative & support | 2016 |
| North East Trimmers Limited | Manufacturing | 2003 |
| North East Used Motor Group Ltd | Wholesale & retail | 2024 |
| North East Vehicle Recycling Ltd | Wholesale & retail | 2025 |
| North East Waste Ltd | Water & waste | 2019 |
| North Eastern (Wholesale) Optical Company Limited(The) | Water & waste | 1956 |
| North Eastern Housing Limited | Extraterritorial | 2000 |
| North Eastern Knitwear Company Limited | Real estate | 1986 |
| North Eastern Optical Services Limited | Health & social care | 2013 |
| North Eastern Powergrid Limited | Extraterritorial | 2011 |
| North Electrical Limited | Construction | 2014 |
| North Farm Management Company Limited | Households | 2006 |
| North Farm Mews Management Company Limited | Households | 2021 |
| North Group Holdings Limited | Professional & scientific | 2023 |
| North Hill (Dinnington) Limited | Households | 2019 |
| North Housing Limited | Real estate | 2000 |
| North Lanarkshire Wind Energy Limited | Energy | 2013 |
| North Line Traders Limited | Wholesale & retail | 2025 |
| North Lodge Farming Limited | Financial services | 1996 |
| North Luxe Cleaning Limited | Water & waste | 2019 |
| North Middlesex Hospital Project Limited | Other services | 2007 |
| North News & Pictures Limited | Information & communication | 1996 |
| North Pain Limited | Health & social care | 2019 |
| North Parade 15-19 Limited | Households | 2026 |
| North Pizzas (Stockton) Limited | Hospitality | 2018 |
| North Point Digital Ltd | Information & communication | 2025 |
| North Powergrid Limited | Extraterritorial | 2011 |
| North Residential Limited | Administrative & support | 2021 |
| North Sales & Marketing Limited | Wholesale & retail | 2023 |
| North Sea Detailing & Valeting Ltd | Administrative & support | 2025 |
| North Shore Bakery Limited | Manufacturing | 2022 |
| North Shore Building Company Ltd | Construction | 2022 |
| North Shore Coffee Grainger Limited | Hospitality | 2020 |
| North Shore Coffee Ltd | Hospitality | 2016 |
| North Shore Coffee Roasters Limited | Manufacturing | 2024 |
| North Shore Coffee Van Gosforth Limited | Wholesale & retail | 2023 |
| North Spine Ltd | Health & social care | 2018 |
| North Sports Holdings Limited | Financial services | 2024 |
| North Star AI Ltd | Professional & scientific | 2026 |
| North Star Brands Ltd | Wholesale & retail | 2024 |
| North Star Care Ltd | Health & social care | 2017 |
| North Star Co-Design CIC | Education | 2022 |
| North Star Dynamics Limited | Professional & scientific | 2026 |
| North Star Educational Psychology Ltd | Education | 2023 |
| North Star Insurance Brokers Limited | Financial services | 2009 |
| North Star Therapy Services Ltd | Health & social care | 2021 |
| North Tees Landfill Limited | Extraterritorial | 2015 |
| North Tees Landfill Sites (Cowpen) Limited | Other services | 2016 |
| North Tees Landfill Sites (Teesport) Limited | Other services | 2016 |
| North Tees Landfill Sites Limited | Other services | 2016 |
| North Tees Waste Management Cowpen Limited | Administrative & support | 2012 |
| North Tees Waste Management Limited | Water & waste | 2003 |
| North Trade Group Ltd | Wholesale & retail | 2020 |
| North Tyne Properties Ltd | Real estate | 2025 |
| North Tyneside Brickwork Ltd | Construction | 2024 |
| North West Powergrid Limited | Extraterritorial | 2011 |
| North Western Powergrid Limited | Extraterritorial | 2011 |
| North Yorkshire Classic Ltd | Wholesale & retail | 2019 |
| North-East Security Services Limited | Administrative & support | 2008 |
| Northborne Properties Ltd | Real estate | 2023 |
| Northbourne Street Youth Initiative | Administrative & support | 2010 |
| Northbridge Sourcing Ltd | Wholesale & retail | 2026 |
| Northcastle Limited | Wholesale & retail | 2016 |
| Northdene Residents Management Company Limited | Households | 2021 |
| Northeast Anaesthetics Ltd | Health & social care | 2023 |
| Northeast Automotive Ltd | Wholesale & retail | 2019 |
| Northeast Coachways Ltd. | Transport & logistics | 2012 |
| Northeast Components Limited | Manufacturing | 2006 |
| Northeast Halal Catering Ltd | Hospitality | 2025 |
| Northeast Healthcare Limited | Health & social care | 2021 |
| Northeast IT and Epos Services Limited | Information & communication | 2024 |
| Northeast Live Wire Trading AS Bright Spark Electricals Limited | Construction | 2021 |
| Northeast Nestings Limited | Hospitality | 2024 |
| Northeast Property Block Management Limited | Real estate | 2021 |
| Northeast Real Estate Development Limited | Manufacturing | 2017 |
| Northeast Rentals Ltd | Real estate | 2024 |
| Northeast Tabletop Events Ltd | Administrative & support | 2025 |
| Northeast TV & Security Solutions Ltd | Information & communication | 2024 |
| Northeast Waste Management and Property Maintenance Ltd | Transport & logistics | 2025 |
| Northeasthour Ltd | Professional & scientific | 2019 |
| Northeastpc Ltd | Information & communication | 1999 |
| Northerly Solutions Ltd | Hospitality | 2009 |
| Northern 4 X 4 Centre Limited | Transport & logistics | 1995 |
| Northern Accelerator CIP Limited Partnership | | 2019 |
| Northern Accelerator GP Limited | Financial services | 2016 |
| Northern Accelerator Seed Investment Fund Limited Partnership | | 2020 |
| Northern Alchemy Limited | Manufacturing | 2014 |
| Northern Alliance Games Ltd | Wholesale & retail | 2024 |
| Northern ARC Innovation Ltd | Professional & scientific | 2025 |
| Northern Art Psychotherapy CIC | Health & social care | 2026 |
| Northern Bakery Holdings Ltd | Professional & scientific | 2024 |
| Northern Bar Management Ltd | Hospitality | 2013 |
| Northern Bear Construction Limited | Financial services | 2021 |
| Northern Bear PLC | Construction | 2006 |
| Northern Bear Roofing Limited | Financial services | 2021 |