| ABH Commercial Management Limited | Professional & scientific | 2026 |
| Albion Estates (Leeds) Limited | Real estate | 1941 |
| Anchor Communications Limited | Transport & logistics | 1989 |
| Beadnell Boat Launch Limited | Arts & recreation | 2022 |
| Beadnell Hall Flats Management Company Limited | Households | 1983 |
| Beadnell Point Leisure Ltd | Hospitality | 2022 |
| Bernicia Holiday Homes Limited | Hospitality | 2022 |
| Blawearie Shoot Limited | Arts & recreation | 2016 |
| Bowring Hepple Black Holdings Ltd | Real estate | 2025 |
| Bowring Hepple Black Ltd | Wholesale & retail | 2024 |
| Bradbury Project Management Ltd | Professional & scientific | 2004 |
| Bradshawgate Finance Limited | Real estate | 1979 |
| Brockthorpe Consultancy Ltd | Professional & scientific | 2018 |
| BTC Fell Ltd | Professional & scientific | 2024 |
| Carl Austin Ltd. | Agriculture & fishing | 2023 |
| Castleson Ltd | Energy | 2013 |
| Doxford Farm Camping Ltd. | Hospitality | 2023 |
| Doxford Hall Ltd | Hospitality | 2023 |
| East Farm Barns Swinhoe Limited | Households | 2012 |
| Ellingham Sporting Limited | Arts & recreation | 2016 |
| Fell & Wynne Ltd | Hospitality | 2024 |
| Garry Sheriff Consulting Limited | Administrative & support | 2024 |
| General Estate Maintenance (GEM) Limited | Other services | 2006 |
| Good Fettle Ltd | Arts & recreation | 2025 |
| Grimfx Limited | Professional & scientific | 2023 |
| IAR Investments Holdings Limited | Financial services | 2025 |
| KA Adventure Sports Ltd | Arts & recreation | 2020 |
| Mill Strand Homes Limited | Construction | 2022 |
| N H Joinery (North East) Limited | Extraterritorial | 2022 |
| NE Surf School Limited Liability Partnership | | 2024 |
| North Coast Collective Limited | Professional & scientific | 2021 |
| Offerhome Property Management Limited | Households | 1993 |
| RAH Investments Holdings Limited | Financial services | 2025 |
| Red Squirrel Energy Limited | Energy | 2014 |
| S & M Copper Limited | Education | 1997 |
| Sprei Ltd | Construction | 2025 |
| Stay in Bamburgh Ltd | Hospitality | 2022 |
| Tennsportrack Ltd | Manufacturing | 2021 |
| That’S Champion Ltd | Wholesale & retail | 2024 |
| THE Black Swan (Seahouses) Limited | Hospitality | 2017 |
| THE Coastal Custodian Northumberland Ltd | Professional & scientific | 2023 |
| THE House of Haggerston Limited | Hospitality | 2013 |
| THE Rusty HEN Limited | Hospitality | 2016 |
| Therapeutic Garden Tours Limited | Administrative & support | 2024 |
| Understory Media Ltd | Manufacturing | 2024 |
| Wandylaw Management Company Limited | Administrative & support | 2006 |
| Witig Ltd | Education | 2020 |