| 12 Old Road Management Limited | Households | 2014 |
| 131H Ltd | Professional & scientific | 2019 |
| A & H Phillips Ltd | Real estate | 2023 |
| A Character Shop Ltd | Wholesale & retail | 2012 |
| A. Robinson Electrical Limited | Manufacturing | 2007 |
| Abagnale Ltd | Construction | 2025 |
| Abbey Recruitment (London) Ltd | Administrative & support | 2016 |
| Abbey Wholesale Limited | Professional & scientific | 2002 |
| Academy for Board Excellence Ltd | Professional & scientific | 2020 |
| Acorn Chase Care Ltd | Health & social care | 2025 |
| Acorn Chase Properties Limited | Real estate | 2024 |
| ACP Catering Limited | Hospitality | 2023 |
| Action Video Services Ltd | Extraterritorial | 1997 |
| AGJ Plant Hire Ltd | Construction | 2025 |
| Akers Associates Limited | Real estate | 2017 |
| Alexander Stephen Property Ltd | Real estate | 2019 |
| Alpha Design Agency Ltd | Professional & scientific | 2023 |
| Alternative Power Projects Ltd | Construction | 2021 |
| Anglia Utilities Ltd | Construction | 2019 |
| Anomaly 7 Limited | Professional & scientific | 2017 |
| Anthony & Anthony Limited | Information & communication | 2022 |
| Anthony & Anthony Precision Limited | Information & communication | 2026 |
| Apex Architectural Limited | Professional & scientific | 2024 |
| Armbroad Limited | Administrative & support | 1999 |
| Arnies Bar and Restaurant Ltd | Hospitality | 2022 |
| Arow Access Ltd | Construction | 2026 |
| Ashthistle House Limited | Real estate | 2025 |
| Aspire Landscapes and Construction Ltd | Administrative & support | 2019 |
| Aspire Landscapes, Development and Construction Limited | Construction | 2015 |
| Aspire New Homes Limited | Construction | 2020 |
| Astell Crescent Limited | Households | 1987 |
| ATA Productions Ltd | Administrative & support | 2025 |
| Ayala Ltd | Wholesale & retail | 2020 |
| Backwater Beverage Company Ltd | Other services | 2020 |
| BAD Girls Hotel Ltd | Hospitality | 2023 |
| Bakers Building Services Limited | Construction | 2022 |
| Balisson Nelcy Property Limited | Households | 2025 |
| Barbury Investments Limited | Real estate | 1981 |
| Bear in the Air Productions Limited | Information & communication | 2016 |
| Bell Street Maintenance Limited | Households | 2022 |
| Benchmark Jewellery Limited | Real estate | 2016 |
| Beromo Limited | Health & social care | 2024 |
| Best Brolly Limited | Professional & scientific | 2025 |
| Betterland Residents Association Limited | Households | 1982 |
| Bibidu' Limited | Wholesale & retail | 2017 |
| Black 20 Ltd | Construction | 2015 |
| Black Lion Associates Limited | Professional & scientific | 2016 |
| Bloom & Co Developments Limited | Construction | 2026 |
| Bloom & Co Holdings Limited | Financial services | 2026 |
| Bold Intuition Co Ltd | Professional & scientific | 2025 |
| BPM Essex Limited | Construction | 2023 |
| Brand Family Holdings Limited | Financial services | 2022 |
| Broadlands Management (Frinton) Limited | Households | 1986 |
| Bruce-It Ltd | Information & communication | 2024 |
| BTD Beat the Demon Ltd | Wholesale & retail | 2022 |
| Burwood Property Investment Ltd | Real estate | 2024 |
| Butterfly and BEE Ltd | Wholesale & retail | 2024 |
| C R H Management Ltd | Real estate | 2018 |
| Cater Trailer (London) Limited | Hospitality | 2006 |
| Central Kiosk Limited | Hospitality | 2010 |
| CG Plastering Ltd | Construction | 2026 |
| Cheesy Italia Limited | Hospitality | 2026 |
| Cherrycourt Construction Limited | | 1979 |
| Child & Provide Community C.I.C. | Health & social care | 2025 |
| Clearway Consultants Limited | Professional & scientific | 2008 |
| Coastal Celebrations Ltd | Arts & recreation | 2025 |
| Coastal Physiotherapy Limited | Health & social care | 2020 |
| Coleman Data Cleansing Consultancy Limited | Information & communication | 2018 |
| Comms Link Limited | Construction | 2012 |
| Connaught Eatery Ltd | Hospitality | 2025 |
| Cosi TOE Ltd | Other services | 2012 |
| County Skips Limited | Administrative & support | 2006 |
| Cozystoves (East Anglia) Limited | Construction | 2014 |
| CV Prime Ltd | Administrative & support | 2020 |
| CVK Ltd | Manufacturing | 2011 |
| Dark Horse Pubs Ltd. | Hospitality | 2019 |
| Deadman Pubs Ltd | Hospitality | 2025 |
| Dean PUB Company Limited | Hospitality | 2017 |
| Dee’S Locks Limited | Administrative & support | 2025 |
| Different (Essex) Ltd | Hospitality | 2019 |
| DIG Safe Suction Excavations Ltd | Construction | 2010 |
| Dizzy Heights Development Ltd | Administrative & support | 2016 |
| DM Elite Cosmetics Ltd | Other services | 2018 |
| Double Denim Holdings Ltd | Professional & scientific | 2025 |
| Driveblue Limited | Education | 2016 |
| E & S Scaffolding Services Limited | Construction | 2006 |
| E M Technology Ltd | Information & communication | 1998 |
| East Anglia Wellbeing Ltd | Health & social care | 2025 |
| East England EYE & Hearing Care Ltd | Health & social care | 2012 |
| East England EYE & Hearing Centre Limited | Health & social care | 2018 |
| Easton White Horse Trading Limited | Hospitality | 2018 |
| Easy Italia Ltd | Hospitality | 2024 |
| Eco 3 Grant Ltd | Wholesale & retail | 2020 |
| Eden Hair Suite Ltd | Other services | 2026 |
| Elmdean Properties Limited | Real estate | 1998 |
| ENN Homes Ltd | Real estate | 2025 |
| Essex Bookbinders Ltd | Manufacturing | 2012 |
| Essex Electrical & Renewables Ltd | Construction | 2023 |
| Essex Skipper Frinton Ltd | Hospitality | 2019 |
| European Business Development Services Limited | Administrative & support | 2005 |