| $AND Properties Ltd | Real estate | 2024 |
| (UK) Lunar Systems Limited | Information & communication | 2022 |
| 0800 Renewables Limited | Extraterritorial | 2022 |
| 09 Investments Ltd | Real estate | 2025 |
| 0QR Ltd | Information & communication | 2019 |
| 1 C C Golf Tech Limited | Administrative & support | 2019 |
| 1 Day Data Ltd | Manufacturing | 2014 |
| 1 Stop PAT Testing Ltd | Professional & scientific | 2023 |
| 1 to 1 Direct Limited | Financial services | 1994 |
| 1 to Train Ltd | Education | 2012 |
| 10HOMES Ltd | Real estate | 2021 |
| 111 Osborne Road Flats Management Company Limited | Households | 1995 |
| 12 JPW Ltd | Information & communication | 2018 |
| 132-138 Market Lane Management Company Limited | Professional & scientific | 2014 |
| 1453 Ottoman Barber Ltd | Other services | 2025 |
| 147 Chester Road Limited | Real estate | 2022 |
| 1788 Solutions Ltd | Extraterritorial | 2016 |
| 18 Eskdale Terrace (Freehold) Limited | Households | 2019 |
| 186 Property Investments Ltd | Real estate | 2017 |
| 1973 Developments Ltd | Real estate | 2003 |
| 1983 Fabrications Limited | Administrative & support | 2018 |
| 1HP Consulting Ltd | Administrative & support | 2024 |
| 1ST Call Clearances Ltd | Water & waste | 2025 |
| 1ST FIX Group Ltd | Construction | 2025 |
| 1ST FIX Upvc Ltd | Construction | 2022 |
| 1ST Mile Education (NE) Limited | Education | 2024 |
| 1ST Mile Education LLP | | 2022 |
| 2 Brothers Supermarket NE Ltd | Wholesale & retail | 2021 |
| 2 Way Tenancy Solutions CIC | Other services | 2014 |
| 228WHR Ltd | Real estate | 2024 |
| 24 Ferndale Avenue Management Company Limited | Households | 2007 |
| 241 Properties Ltd | Construction | 2022 |
| 26 Park AVE Limited | Financial services | 2020 |
| 27 Eslington Terrace Management Limited | Households | 2005 |
| 27-28 Sandhill Management Ltd | Real estate | 2014 |
| 2MWILLS Ltd | Professional & scientific | 2023 |
| 3 Property NE Lettings & Management Limited | Real estate | 2023 |
| 3 Property NE Ltd | Real estate | 2023 |
| 30M Distribution Ltd | Wholesale & retail | 2010 |
| 360 Future Developments Limited | Construction | 2025 |
| 360 Sky Lounge Ltd | Hospitality | 2019 |
| 365 Site Services Ltd | Administrative & support | 2022 |
| 3C Building Consultancy Limited | Administrative & support | 2022 |
| 3D Acrylics & Metals Ltd | Manufacturing | 2011 |
| 3D Operations Limited | Administrative & support | 2020 |
| 3D2D Events England Limited | Administrative & support | 2019 |
| 3LANCE Electrical Estimating Ltd | Hospitality | 2014 |
| 4 5 Consulting LLP | | 2011 |
| 4 Brothers Property Group Ltd | Real estate | 2020 |
| 415 Professional Aesthetics Ltd | Other services | 2016 |
| 44 Studio (NE) Ltd | Other services | 2026 |
| 4E'S Studio Ltd | Other services | 2023 |
| 4E6F42756C6C Ltd | Information & communication | 2025 |
| 4EXPORTING Ltd | Real estate | 2025 |
| 4FUTURE Homes Ltd | Real estate | 2024 |
| 5 Inajar Limited | Health & social care | 2025 |
| 5 Star Stitch UK Ltd | Wholesale & retail | 2023 |
| 521 Automation Engineering Services Limited | Manufacturing | 1996 |
| 53 Collingham Ltd | Real estate | 2021 |
| 55 Cavendish Road Limited | Households | 2020 |
| 584 Manchester Road Ltd | Real estate | 2023 |
| 67 Brent Limited | Real estate | 2018 |
| 6CC Business Consultants Limited | Professional & scientific | 2010 |
| 6HB Ltd | Construction | 2024 |
| 76 Environmental Ltd | Transport & logistics | 2018 |
| 77 Hollywood Avenue Limited | Real estate | 2019 |
| 7717 Limited | Administrative & support | 2025 |
| 786 E&G Solutions Ltd | Manufacturing | 2023 |
| 7BRIDGES Living Ltd | Construction | 2021 |
| 81 Jesmond RTM Ltd | Real estate | 2012 |
| 8K Live Ltd | Information & communication | 2019 |
| A & B Properties (North East) Limited | Real estate | 2016 |
| A & C Property Management Ltd | Real estate | 2016 |
| A & E Turner Properties Limited | Real estate | 2018 |
| A & G Durham Ltd | Financial services | 2021 |
| A & K Property Services LLP | | 2011 |
| A & L Lets Ltd | Hospitality | 2025 |
| A & M Commercial Property Management Limited | Real estate | 2018 |
| A BIT of a Treat Ltd | Wholesale & retail | 2019 |
| A C Inta Care Ltd | Health & social care | 2019 |
| A E Plumbing & Heating Solutions Limited | Construction | 2022 |
| A J N Pallets Limited | Administrative & support | 2009 |
| A J Training Solutions Ltd | Professional & scientific | 2018 |
| A Jays Autos Limited | Wholesale & retail | 2014 |
| A L Hydrojetting Group Limited | Financial services | 2025 |
| A L Hydrojetting Limited | Construction | 2019 |
| A M C Scaffolding Services Limited | Construction | 2025 |
| A Mohan Limited | Administrative & support | 2004 |
| A Pereira Ltd | Health & social care | 2014 |
| A Perfecteam Limited | Real estate | 2015 |
| A Petrescu Ltd | Health & social care | 2013 |
| A Pickering Ltd | Health & social care | 2014 |
| A Ptak Ltd | Health & social care | 2013 |
| A Shavit Ltd | Health & social care | 2018 |
| A Smith Decorators Limited | Construction | 2010 |
| A Sousa Ltd | Health & social care | 2016 |
| A Stogiera Ltd | Health & social care | 2016 |
| A Young Ltd | Health & social care | 2022 |
| A Z Car Valeting Limited | Wholesale & retail | 2026 |
| A&B Real Estate Development Ltd | Real estate | 2024 |