| 3D Physio and Performance Ltd | Public administration | 2024 |
| A G Rutherford Limited | Professional & scientific | 2011 |
| A J Mullins Window Products Limited | Construction | 2026 |
| A M S Chiropractic Limited | Health & social care | 2008 |
| Absolute Services (North East) Ltd | Administrative & support | 2010 |
| ABT Digital Limited | Information & communication | 2023 |
| Active Future Franchising Ltd | Professional & scientific | 2023 |
| Active Future Games Ltd | Education | 2018 |
| Active Future West Northumberland Ltd | Arts & recreation | 2025 |
| Adventours Ltd | Administrative & support | 2024 |
| Airgill Ltd | Manufacturing | 2020 |
| Allendale Estates Limited | Real estate | 2021 |
| Allendale Trustees 1 Limited | Professional & scientific | 2022 |
| Allendale Trustees 2 Limited | Professional & scientific | 2022 |
| Amphibian Husbandry Ltd | Arts & recreation | 2019 |
| AMV Live Events Limited | Arts & recreation | 2012 |
| AMV Live Music Limited | Arts & recreation | 2010 |
| AMV Live Venues Limited | Arts & recreation | 2012 |
| Andark Leisure Ltd | Hospitality | 2022 |
| Andrew Noakes Ltd | Extraterritorial | 2023 |
| Anvil Invest Ltd | Administrative & support | 2023 |
| Armstrong Brokers Ltd | Financial services | 2019 |
| Avi-Ate Catering LLP | | 2024 |
| Baxters Trade Ltd | Manufacturing | 2025 |
| Beaumont and Bridge LLP | | 2025 |
| Belmont Capital Limited | Financial services | 2014 |
| Beluga Digital Limited | Information & communication | 2020 |
| Bernicia 547 Limited | Wholesale & retail | 2019 |
| Bitesize Bootcamp Limited | Education | 2016 |
| BNC Engineering Solutions Ltd | Professional & scientific | 2013 |
| Bold Construction NE Limited | Construction | 2026 |
| Branch END Garage Ltd | Wholesale & retail | 2014 |
| Breakthroughbarriers Psychology Limited | Education | 2022 |
| Broadoak Holdings North East Ltd | Financial services | 2014 |
| Brocollita Limited | Real estate | 2020 |
| Bywell Coffee Barn Ltd | Hospitality | 2019 |
| Bywell Home Farms LLP | | 2014 |
| C E Hastie Limited | Other services | 2023 |
| Castletyne Property Ltd | Real estate | 2024 |
| CCS Living Limited | Construction | 2025 |
| Chris Quigley Education Limited | Education | 2007 |
| Clifford James Consultants Limited | Information & communication | 2006 |
| Clifford James Group Limited | Professional & scientific | 2024 |
| Clifford James Limited | Financial services | 2017 |
| Colleague Central Ltd | Administrative & support | 2021 |
| Community Buddies North East Ltd | Health & social care | 2019 |
| Content Quality Ltd | Information & communication | 2013 |
| Corbridge Developments Limited | Construction | 2005 |
| Corcoran Yates Limited | Administrative & support | 2007 |
| CPS22 Limited | Professional & scientific | 2015 |
| Crane Innovation Limited | Information & communication | 2022 |
| Craven Templar Limited | Professional & scientific | 1918 |
| Cross House Buildings Limited | Real estate | 1955 |
| Cross House Holdings Limited | Real estate | 2016 |
| Curatorial Ethics Network C.I.C. | Information & communication | 2026 |
| Curveshare Limited | Information & communication | 2009 |
| D H Charlton Consultancy Limited | Information & communication | 1999 |
| Dennhofer Wines Limited | Wholesale & retail | 1976 |
| Depthoflearning.Com Limited | Information & communication | 2015 |
| DER Contract Engineering Services Limited | Professional & scientific | 2001 |
| Diagnostics Direct Ltd | Health & social care | 2014 |
| Divine Time (North East) Limited | Hospitality | 2002 |
| DM & C Jones Limited | Administrative & support | 2023 |
| Dmeaviation Limited | Transport & logistics | 2021 |
| Duckhouse Pantry LLP | | 2019 |
| E.C.B Welding Ltd | Manufacturing | 2014 |
| EDM Training & Servicing Limited | Manufacturing | 2025 |
| Electrozest Limited | Professional & scientific | 2015 |
| Ember Marketing Limited | Professional & scientific | 2025 |
| Enscott Limited | Professional & scientific | 1996 |
| ETECH49 Limited | Professional & scientific | 2020 |
| Eureka Consultants Ltd | Professional & scientific | 2004 |
| Everything Insight Ltd | Professional & scientific | 2025 |
| Evolt Body UK Ltd | Other services | 2026 |
| Faust Holdings Limited | Professional & scientific | 2004 |
| Firmplan Limited | Professional & scientific | 2008 |
| Five Quarters Ltd | Information & communication | 2006 |
| Fynd Limited | Arts & recreation | 2003 |
| G.T. Deliveries Ltd | Transport & logistics | 2015 |
| Gainford Design Associates LLP | | 2002 |
| Gandalf Limited | Real estate | 1981 |
| Garwen Enterprises Ltd | Construction | 2008 |
| Green Box Ventures Ltd | Financial services | 2025 |
| Hamilton Lowes LLP | | 2021 |
| Harrison Architects Studio Ltd | Professional & scientific | 2019 |
| Harwood Microbiology Consulting Limited | Professional & scientific | 2015 |
| HCP High Yield NO3 Limited | Administrative & support | 2017 |
| Hexbridge Construction Ltd | Construction | 2020 |
| Hexhamshire Brewery Limited | Manufacturing | 2023 |
| Hindley (Saffron) Ltd | Hospitality | 2020 |
| Hindley Communications Ltd | Information & communication | 2020 |
| Hindley Hall Apartments Limited | Households | 1996 |
| Hindley Residential Lettings Ltd | Real estate | 2021 |
| Hindley Weddings and Events Ltd | Hospitality | 2018 |
| Hoth Consulting Limited | Information & communication | 2022 |
| HQ Consult Limited | Professional & scientific | 2016 |
| HQ Retail Limited | Wholesale & retail | 2022 |
| Ibpw Limited | Manufacturing | 2020 |
| J.T. Clough & SON Limited | Real estate | 1951 |
| James Lewis Property Investments Ltd | Real estate | 2024 |