| Advanced Workshops Ltd | Manufacturing | 2005 |
| AH North East Properties Ltd | Real estate | 2017 |
| Analytix Limited | Professional & scientific | 1996 |
| Boldon Picture Framing Ltd | Manufacturing | 2000 |
| D D Ramshaw BIA Limited | Health & social care | 2016 |
| FM Coatings (North East) Limited | Extraterritorial | 2013 |
| FM Coatings Limited | Manufacturing | 2007 |
| Hall & Tully Leisure Limited | Hospitality | 2025 |
| Healthcare Management N.E. Ltd | Financial services | 2004 |
| HLA Group Limited | Financial services | 2022 |
| HLA Services Limited | Administrative & support | 2003 |
| Immunodiagnostic Systems Limited | Manufacturing | 1995 |
| J Blackburn Coating Inspection Ltd | Professional & scientific | 2013 |
| KS Counselling Psychology Limited | Health & social care | 2022 |
| Kvasir Electrical Engineering Limited | Manufacturing | 2005 |
| Kvasir Group Limited | Manufacturing | 2005 |
| Kvasir International Limited | Manufacturing | 2005 |
| Kvasir Offshore Limited | Manufacturing | 2005 |
| Merinda Bryce Property Ltd | Real estate | 2018 |
| NHC Group Holdings Limited | Financial services | 2020 |
| NHC Group Limited | Wholesale & retail | 2012 |
| NOC Engineering Ltd | Manufacturing | 2020 |
| Northumbria Optical Coatings Limited | Manufacturing | 1994 |
| Opus BSL (Holdings) Limited | Construction | 2021 |
| Opus Building Services Limited | Construction | 2006 |
| Progmatic Software Ltd | Information & communication | 2022 |
| Puzzle Digest Limited | Information & communication | 2013 |
| R Belper Limited | Real estate | 2021 |
| R L Leisure Services Limited | Hospitality | 2024 |
| Red Beard Horizon Ltd | Professional & scientific | 2025 |
| RG Competitions Limited | Administrative & support | 2010 |
| Sidney Bulmer Limited | Real estate | 2021 |
| THE Belper Fields Partnership LLP | | 2021 |
| Ytmc Limited | Other services | 2016 |
| Ytmc Peninsular Limited | Other services | 2025 |