| Stephanie Wood Physiotherapy Ltd | Health & social care | 2021 |
| Stephens Group Holdings Limited | Financial services | 2026 |
| Stolen Bike Recovery C.I.C. | Administrative & support | 2019 |
| Stormont Construction N.E Ltd | Construction | 2019 |
| Stratconsult Limited | Professional & scientific | 2019 |
| Strategic Workplace Performance & Wellbeing Ltd | Professional & scientific | 2026 |
| Stratiform AI Ltd | Information & communication | 2025 |
| Stride and Summit Limited | Manufacturing | 2025 |
| Studio BE Skin and Body Solutions Limited | Other services | 2021 |
| Summerhouse Lighting Ltd | Construction | 2022 |
| Summitz Ltd | Wholesale & retail | 2024 |
| Supreme Motorz Limited | Wholesale & retail | 2025 |
| Surialke Marketing and Industrial Services Limited | Wholesale & retail | 2017 |
| Swarland Motor Parts Limited | Wholesale & retail | 2003 |
| Synergy Healthcare Rehabilitation Limited | Health & social care | 2002 |
| T and M Myerscough Trading Ltd | Wholesale & retail | 2025 |
| T&B Engineering Services Ltd | Professional & scientific | 2026 |
| T.C Autos North East Ltd | Wholesale & retail | 2025 |
| Tandoori Cafe Ltd | Hospitality | 2022 |
| TB Contractors Limited | Construction | 2020 |
| TD Properties NE Ltd | Manufacturing | 2026 |
| Team a Consultants Limited | Professional & scientific | 2018 |
| That's a Peach Limited | Manufacturing | 2021 |
| THE Bedlingtonshire Golf Club Limited | Arts & recreation | 2001 |
| THE Bridging GAP Services Ltd | Health & social care | 2024 |
| THE Fortitude Injury Clinic Ltd | Health & social care | 2022 |
| THE Gables (Northumberland) Ltd | Health & social care | 2013 |
| THE Hoptimist Bedlington Ltd | Hospitality | 2024 |
| THE New Library Garage Ltd | Wholesale & retail | 2013 |
| THE Nuts Autoparts Ltd | Wholesale & retail | 2026 |
| THE Old Church House Bedlington Management Company Limited | Professional & scientific | 2006 |
| THE Pattersons Group Ltd | Hospitality | 2026 |
| THE Personalised Stone Company Ltd | Arts & recreation | 2023 |
| THE Pitman Pizza Company Ltd | Administrative & support | 2017 |
| THE Sausage Sitter Ltd | Other services | 2019 |
| THE Social LAB NE Limited | Professional & scientific | 2023 |
| THE Spicy Brain Collective Limited | Professional & scientific | 2024 |
| THE Stage and Production House (UK) Limited | Arts & recreation | 2013 |
| THE Tiny Toes Play Co. Ltd | Administrative & support | 2025 |
| THE Toby Henderson Trust Limited | Health & social care | 2009 |
| THE Willow Bean Limited | Hospitality | 2026 |
| THRIVE2PERFORM Ltd | Health & social care | 2019 |
| Thriving United CIC | Arts & recreation | 2026 |
| Thunder Road Campers Ltd | Extraterritorial | 2021 |
| Timeless TAN Ltd | Other services | 2026 |
| TM Roofing NE Ltd | Construction | 2025 |
| TMG Roofing & Property Services Ltd | Construction | 2026 |
| Toandfromservices Ltd | Transport & logistics | 2019 |
| Tony Lamsdale Automotive Limited | Transport & logistics | 2015 |
| Tourmaster Travel Limited | Transport & logistics | 1999 |
| Towers Hospitality Limited | Hospitality | 2019 |
| Towers Properties Limited | Real estate | 2020 |
| TP Management Ltd | Real estate | 2024 |
| Trainbase Ltd | Construction | 2016 |
| Transforming Culture Limited | Extraterritorial | 2011 |
| Travelers Choppington Ltd | Hospitality | 2022 |
| Treading Water Ltd | Wholesale & retail | 2017 |
| Treatview Limited | Arts & recreation | 1983 |
| TRI Star NE Limited | Transport & logistics | 2026 |
| Tri-Star Airport Transfers Ltd | Transport & logistics | 2025 |
| Tri-Star Northumbria Ltd | Transport & logistics | 2021 |
| Tuli Hill Care Limited | Health & social care | 2022 |
| Turner Offshore Services Limited | Mining & quarrying | 2018 |
| Twenty First Century Escapade Community Interest Company | Professional & scientific | 2013 |
| Tygre Ltd | Wholesale & retail | 2026 |
| Tyneside Stoves Limited | Energy | 2007 |
| UK EV Power Connections Ltd | Extraterritorial | 2020 |
| Ultra Bedrooms Ltd | Manufacturing | 2012 |
| Uludagoglu Ltd | Hospitality | 2024 |
| Uptown Spirits Limited | Wholesale & retail | 2020 |
| V W Electrical & Building Services Limited | Extraterritorial | 2024 |
| Valentinos (Whitley Bay) Ltd | Extraterritorial | 2015 |
| Vellure Ltd | Other services | 2026 |
| Ventex Consultancy Ltd | Professional & scientific | 2025 |
| Vergo Construction N/E Ltd | Other services | 2017 |
| Victoria House (North East) Limited | Health & social care | 2004 |
| Vino Distribution Limited | Hospitality | 2016 |
| Vittillion Ltd | Construction | 2021 |
| Vulcan Place Properties Ltd | Real estate | 2025 |
| Vybe Tech Ltd | Information & communication | 2023 |
| W Davison Limited | Construction | 2017 |
| W Dawson Electrical Solutions Ltd | Construction | 2018 |
| Wall Street Properties Limited | Real estate | 2005 |
| Wallace Engineering Services Ltd | Professional & scientific | 2026 |
| Wallace Solutions Limited | Information & communication | 2025 |
| Wansbeck Business Services Limited | Professional & scientific | 2003 |
| Wansbeck Subsea Services Ltd | Professional & scientific | 2024 |
| Warner Engineering Services Limited | Extraterritorial | 2015 |
| Warwick Glynn Limited | Extraterritorial | 2020 |
| Water Hub Ltd | Hospitality | 2016 |
| Watson Project Management Ltd | Professional & scientific | 2016 |
| Watsons Haulage Limited | Transport & logistics | 2013 |
| Watsons of Bedlington Limited | Water & waste | 2004 |
| Wenu UK Ltd | Hospitality | 2024 |
| West END Pre-School Limited | Education | 2009 |
| What a Hoot Day Nursery Bedlington Ltd | Health & social care | 2013 |
| WHR Property Maintenance Services Ltd | Construction | 2026 |
| Wind EVO Access Ltd | Construction | 2025 |
| Windowtech (NE) Ltd | Construction | 2017 |
| Wireless Promotional Marketing Limited | Extraterritorial | 2003 |