| 55 Fisheries Limited | Wholesale & retail | 2020 |
| Abbotsford Management Limited | Households | 1991 |
| Active Energy Generation Limited | Professional & scientific | 2025 |
| Adana Investments Ltd | Extraterritorial | 2009 |
| Adderstone (211) Limited | Real estate | 2021 |
| Adderstone (221) Limited | Real estate | 2020 |
| Adderstone (223) Limited | Real estate | 2021 |
| Adderstone (224) Limited | Real estate | 2021 |
| Adderstone (Sunderland) LLP | | 2010 |
| Adderstone Hall Holiday and Functions Ltd | Hospitality | 2018 |
| Adjuva Limited | Health & social care | 2018 |
| Advanced Industrial Limited | Real estate | 2018 |
| AME Hospitality Limited | Hospitality | 2023 |
| Atlanta Shore Ltd | Real estate | 2003 |
| Audio Therapy Limited | Wholesale & retail | 2017 |
| Austin Lifts Limited | Manufacturing | 1998 |
| Benitos Limited | Real estate | 2002 |
| Benji Enterprises Limited | Real estate | 2018 |
| Blackboxx Ltd | Professional & scientific | 2024 |
| Blue Sight Games Limited | Information & communication | 2024 |
| Bluebell Hotel and Golf Club Ltd | Hospitality | 2016 |
| Borderstone Developments Limited | Real estate | 2025 |
| Bosanko Limited | Construction | 1972 |
| Branch END Garage (Carr & Earl) Limited | Wholesale & retail | 1982 |
| Bursa Investments Ltd | Extraterritorial | 2009 |
| Caseley Estates Limited | Real estate | 1985 |
| CBL Holdings Limited | Financial services | 2023 |
| Consultrans Limited | Professional & scientific | 2001 |
| Creases Limited | Other services | 2015 |
| Creases of Gosforth Limited | Other services | 2012 |
| Crosby Street Limited | Real estate | 2024 |
| Curioushr Limited | Administrative & support | 2018 |
| D & M Properties (NE) Limited | Hospitality | 2008 |
| Delphi Labs Limited | Manufacturing | 2005 |
| Dennison Property Services Ltd | Real estate | 2025 |
| Dumark Investment Limited | Real estate | 2004 |
| Elda Development Services Limited | Construction | 2024 |
| EML Wellness Limited | Other services | 2025 |
| Farnsworth Court Freehold Limited | Real estate | 2009 |
| Fern Avenue Antiques Centre Ltd | Wholesale & retail | 2011 |
| Firth Ground Systems Limited | Manufacturing | 1987 |
| Flue & Heating Supplies Limited | Wholesale & retail | 2023 |
| Forum Centrespace Limited | Real estate | 2001 |
| Forum RCP Ltd | Extraterritorial | 2024 |
| General Construction Services Limited | Wholesale & retail | 1989 |
| Greensmore Paving Limited | Professional & scientific | 1997 |
| Groundwave Technologies Limited | Manufacturing | 2023 |
| Henry Brook & Company,Limited | Wholesale & retail | 1898 |
| Honister Holdings Ltd | Financial services | 2022 |
| HSZ Holdings Limited | Financial services | 2024 |
| Hunt the Hare Ltd | Arts & recreation | 2025 |
| I2I Engineering Limited | Manufacturing | 2005 |
| Italiaconcept Ltd | Wholesale & retail | 2020 |
| Jackpot Explorers Limited | Other services | 2024 |
| Kendall Property Investments Limited | Real estate | 2025 |
| Lamp House Strategy Limited | Professional & scientific | 2022 |
| Launder & Press Ltd | Other services | 2021 |
| Launder and Press Lowfell Limited | Other services | 2024 |
| Lennon Properties Limited | Real estate | 2020 |
| Linux Epos Limited | Information & communication | 2002 |
| Luxe Jesmond Limited | Other services | 2024 |
| Malvern House Investments Limited | Financial services | 2005 |
| Mcdougal & Breen Ltd | Wholesale & retail | 2007 |
| Mercari Foods Limited | Wholesale & retail | 2004 |
| Modaim Limited | Agriculture & fishing | 1989 |
| Movere Opus Pictures Limited | Information & communication | 2023 |
| NE Commercial Ltd | Administrative & support | 2023 |
| Newcastle Cricket Club (Community) Limited | Hospitality | 2015 |
| Newcastle Property Developments Limited | Construction | 2024 |
| Newcastle Property Management Ltd | Real estate | 2024 |
| Nisus Publishing Limited | Information & communication | 2025 |
| North Jesmond Garage Limited | Wholesale & retail | 1989 |
| Northumberland CTC (Properties) Limited | Arts & recreation | 1995 |
| OAC (Overseas Air Cargo) Europe B.V. | | 1999 |
| Omar MO Ltd | Hospitality | 2023 |
| Optihire Limited | Information & communication | 2022 |
| Parkside Wallsend Limited | Wholesale & retail | 2025 |
| Partlogic Ltd | Information & communication | 2025 |
| Porter Brothers Holdings Limited | Financial services | 2023 |
| Purple Flower Property Ltd | Real estate | 2026 |
| Quantyr Ltd | Information & communication | 2017 |
| Rethinking Capital Limited | Information & communication | 2023 |
| Rockhampton Limited | Real estate | 1989 |
| Roseanna Grace Healthcare Limited | Health & social care | 2021 |
| Rosepear Limited | Financial services | 2023 |
| Seismic Image Processing Limited | Real estate | 1997 |
| Sendrig Construction Limited | Construction | 1981 |
| ST Ann’S Freehold Limited | Real estate | 2021 |
| Strategic Performance Solutions Limited | Arts & recreation | 2025 |
| Studio Propa Ltd | Hospitality | 2023 |
| TH Ward Ltd | Professional & scientific | 2009 |
| THE 16 Eskdale Terrace Management Company Limited | Households | 2012 |
| THE Chocolate Smiths Holdings Limited | Financial services | 2014 |
| THE Chocolate Smiths Limited | Manufacturing | 2014 |
| THE Stitchery Jesmond Ltd | Manufacturing | 2019 |
| THE UK Academy for Information Systems | Information & communication | 1997 |
| TR17DER Properties Ltd | Real estate | 2024 |
| Tranquillity Productions Ltd | Professional & scientific | 2026 |
| Trinders Independent Traders Limited | Professional & scientific | 2015 |
| Trust Psychology Ltd | Health & social care | 2012 |