| Amanda Meade Interior Design Limited | Other services | 2012 |
| ANN ET VIN Limited | Wholesale & retail | 2003 |
| Ariadne Galleries Limited | Other services | 2013 |
| Arthur Tech and System Management Ltd | Water & waste | 2024 |
| Aspire With Kelly Ltd | Professional & scientific | 2018 |
| Auto and Commercial Exports Limited | Wholesale & retail | 2024 |
| B S City Fencing Contracts Limited | Administrative & support | 2003 |
| Bakers Mead (Hartlepool) Management Company Limited | Households | 1994 |
| Beacon Risk Assurance Services Limited | Professional & scientific | 2009 |
| Biosci Biosciences Limited | Professional & scientific | 2024 |
| Calvi (UK) Limited | Administrative & support | 2002 |
| Classicwise Ltd | Wholesale & retail | 2016 |
| F.B.G. Limited | Mining & quarrying | 1992 |
| FBG Resources Ltd | Professional & scientific | 2023 |
| Finper Estates Limited | Real estate | 2015 |
| Friends School (Great Ayton) Management Company Limited | Households | 1999 |
| Glen Court Flats Limited | Households | 2002 |
| Goldenmine Limited | Households | 2021 |
| Gouldingays Family Law and Mediation Limited | Professional & scientific | 2013 |
| Hazel Mead Village (Stokesley) Management Company Limited | Households | 2000 |
| High END Fire and Security Limited | Administrative & support | 2020 |
| High View (Whickham) Management Limited | Households | 2003 |
| Hope House School Limited | Education | 2007 |
| Intercontinental Commercial Enterprises Limited | Administrative & support | 2021 |
| Knoll Avenue Management Company Limited(The) | Households | 1979 |
| Laird Estates Leisure Limited | Hospitality | 2024 |
| Lidyam Limited | Hospitality | 2023 |
| Lifetools Corporation Limited | Information & communication | 2018 |
| Microflight Aviation Limited | Administrative & support | 2000 |
| Mobile Auto Keys Ltd | Wholesale & retail | 2025 |
| Monument Wills & Estate Planning Limited | Professional & scientific | 2012 |
| Newark Rugby Union Football Club Limited | Arts & recreation | 2011 |
| Newstead (Whitley Bay) Management Company Limited | Households | 1997 |
| Norton Hall(Norton Stockton) Management Company Limited | Households | 2001 |
| Opticare Midlands Limited | Health & social care | 1988 |
| Patchwork Audio Live Events Ltd | Administrative & support | 2024 |
| Prewire Ltd | Manufacturing | 2016 |
| Qali Ltd | Information & communication | 2021 |
| Roseberry Court (Great Ayton) Management Limited | Households | 2002 |
| Sandringham Court (Darlington) Limited | Households | 2003 |
| Scos Lighting UK Limited | Wholesale & retail | 2015 |
| SJK Kitchens Ltd | Wholesale & retail | 2021 |
| TCS Advance Limited | Information & communication | 2004 |
| Teaspoon Tea Company Limited | Wholesale & retail | 2014 |
| THE Abbey Springs Management Company Limited | Households | 2000 |
| THE Bridges (Darlington) Management Company Limited | Households | 2006 |
| Tilly Tara Trading Limited | Wholesale & retail | 2019 |
| Top Class Developments Limited | Hospitality | 1991 |
| We-Id Ltd | Manufacturing | 2025 |
| Wilton Castle (Wilton) Management Company Limited | Households | 2002 |