| A.J. COE Limited | Manufacturing | 2004 |
| Adash (UK) Limited | Hospitality | 2011 |
| AGT Removals Ltd | Transport & logistics | 2019 |
| Allen Installations Limited | Manufacturing | 1996 |
| Ambrowilks Building & Maintenance Services Ltd | Administrative & support | 2017 |
| Aslan Waterside Ltd | Hospitality | 2021 |
| Autism Success Formula Ltd | Professional & scientific | 2012 |
| Autism Workplace Solutions Limited | Professional & scientific | 2025 |
| Black Crest Group Limited | Real estate | 2017 |
| Black Crest London Limited | Real estate | 2012 |
| Black Crest Management Limited | Real estate | 2017 |
| Black Swan Developments Limited | Financial services | 2021 |
| Brightlingsea DP Limited | Health & social care | 2022 |
| Brightlingsea Museum | Arts & recreation | 1989 |
| Brightlingsea Salad Box Ltd | Hospitality | 2025 |
| Britau Limited | Construction | 2008 |
| Brookglade Holdings Limited | Financial services | 2021 |
| Bucc Bay Club Limited | Real estate | 2014 |
| Business Growth Academy Limited | Professional & scientific | 2011 |
| Carbon Skull Ltd | Wholesale & retail | 2025 |
| Cinque Port Ceramics Ltd | Construction | 2005 |
| Cinque Port Property Company Limited | Real estate | 2013 |
| Clean Investments Limited | Professional & scientific | 2023 |
| Clermont Place Management Company Ltd. | Construction | 2015 |
| Cobnuts - a Community Ecology Arts & Crafts Cooperative | Education | 2017 |
| Colne Catering Limited | Hospitality | 2019 |
| Colne Water Activities Limited | Arts & recreation | 2019 |
| Combined Heating Solutions Ltd | Extraterritorial | 2015 |
| Comus Europe Limited | Manufacturing | 1989 |
| Confederation of Roofing Contractors 2000 Limited | Other services | 1997 |
| Constable Care Ltd | Other services | 2010 |
| Coppin Intervention Services Limited | Other services | 2013 |
| DB Strategies LLP | | 2007 |
| Dolphin Business Strategies Limited | Professional & scientific | 2007 |
| Dolphin Dreams Resorts Limited | Professional & scientific | 2009 |
| Dolphin Investment Group Limited | Professional & scientific | 2020 |
| Duke Court Management Company Limited | Professional & scientific | 1985 |
| Essex Coastal Rents Limited | Real estate | 2021 |
| Goodwin & Gould Limited | Construction | 2011 |
| Grassroot Media Ltd | Professional & scientific | 2018 |
| Greenprint Consultancy Limited | Manufacturing | 2006 |
| Griggs Builders Ltd | Construction | 2017 |
| Hampstead Homes Limited | Real estate | 2001 |
| Harrison Horticulture Ltd | Professional & scientific | 2023 |
| Health Talks Ltd | Education | 2014 |
| Inspiring Financial Independence Limited | Professional & scientific | 2010 |
| J & K Events Ltd | Arts & recreation | 2017 |
| Jlaw Group Limited | Professional & scientific | 2019 |
| K.R. Investments Limited | Construction | 1992 |
| Kama Estates Limited | Financial services | 2022 |
| Koziwarm Plumbing & Heating Limited | Administrative & support | 2016 |
| Laptop Limited | Real estate | 1988 |
| Larke Catering & Co Ltd | Hospitality | 2017 |
| Luxury Box Packaging Ltd | Manufacturing | 2025 |
| Mending Matters Brightlingsea Community Interest Company | Education | 2022 |
| MFR Controls Ltd | Administrative & support | 2017 |
| Newlox Limited | Hospitality | 2014 |
| Perry PC 66 Limited | Construction | 2019 |
| Pure Digital Internet Limited | Professional & scientific | 2015 |
| Python Racing Limited | Wholesale & retail | 2018 |
| R Whites Ltd | Information & communication | 2011 |
| RPG Innovations Limited | Wholesale & retail | 2020 |
| Sheath Construction Ltd | Construction | 2024 |
| Smart Carpentry and Refurbishments Ltd | Construction | 2010 |
| Spicebloom Limited | Hospitality | 2025 |
| Spritzmonkey Limited | Information & communication | 2016 |
| Strong Point Design Ltd | Professional & scientific | 2013 |
| Thames Estuary Lobster Hatchery CIC | Agriculture & fishing | 2022 |
| THE Pioneer Sailing Trust | Manufacturing | 1999 |
| TJF Investments LLP | | 2025 |
| TJF Solutions Limited | Real estate | 2025 |
| Vdub Conversion Shop Ltd | Wholesale & retail | 2018 |