| Connect Auto Ltd | Information & communication | 2020 |
| Construction Plant Hire Limited | Administrative & support | 2021 |
| Construction Purchasing Limited | Administrative & support | 2020 |
| Corefloor Ltd | Construction | 2026 |
| Creedence Fishery Ltd | Agriculture & fishing | 2021 |
| Crow Lane Car Body Repairs Ltd | Wholesale & retail | 2026 |
| CSK Property Ltd | Real estate | 2024 |
| Cuthbert Karate Ltd | Arts & recreation | 2021 |
| CW Wellness Beauty Ltd | Health & social care | 2022 |
| CW Wellness Rejuvenate Ltd | Health & social care | 2022 |
| Cygnet Resourcing Ltd | Administrative & support | 2022 |
| D D Caroline Limited | Wholesale & retail | 2012 |
| D G Transport & Removals Ltd | Transport & logistics | 2013 |
| D R Crudgington Building Services Ltd | Construction | 2024 |
| D&T Gardening Landscapes Ltd | Administrative & support | 2025 |
| D.I.Day Ltd | Construction | 2019 |
| Danancy Media Limited | Information & communication | 2016 |
| Dartriben Limited | Real estate | 2021 |
| DBS Tiling Ltd | Construction | 2026 |
| DC Brickwork Essex Ltd | Construction | 2026 |
| Delbosq Ltd | Construction | 2017 |
| Delbosq Property Ltd | Real estate | 2025 |
| Dennis B Building Contractors Limited | Construction | 2005 |
| Design Construction Development Ltd | Construction | 2024 |
| Designimpact Ltd | Professional & scientific | 2018 |
| DGL Contracts Ltd | Construction | 2018 |
| Dispense Systems Limited | Extraterritorial | 2003 |
| Dorset Cleaning & Maintenence Ltd | Administrative & support | 2018 |
| Drain Relief Services Ltd | Water & waste | 2026 |
| Drivenbyextract Ltd | Education | 2026 |
| DS Cabling Solutions Ltd | Construction | 2023 |
| Dust to Shine Ltd | Administrative & support | 2020 |
| DW International Solutions Ltd | Construction | 2025 |
| Dwelling Property Maintenance Ltd | Construction | 2023 |
| DWR Property Developers Ltd | Construction | 2025 |
| E Construction Solutions Ltd | Construction | 2025 |
| E-Veterinary Services Limited | Professional & scientific | 2023 |
| East London Pallet Services Ltd | Wholesale & retail | 2020 |
| Edwards Property Management and Services Ltd | Households | 2026 |
| EE Electrical & Co Ltd | Construction | 2018 |
| Elephant Interiors Limited | Construction | 2009 |
| Elka Developments Ltd | Construction | 2019 |
| EMA Holdings Ltd | Real estate | 2023 |
| Emerald Building & Developments Ltd | Construction | 2019 |
| Emerald Skin and Beauty Ltd | Other services | 2024 |
| Empire Construction and Building Services Limited | Construction | 2025 |
| Empire Sealants Ltd | Construction | 2026 |
| Encore Corporation Ltd | Manufacturing | 2025 |
| EON Ventures Ltd | Professional & scientific | 2022 |
| Equine Manure Solutions Ltd | Agriculture & fishing | 2026 |
| Essex Carp Syndicates Ltd | Arts & recreation | 2021 |
| Essex Land & Properties Ltd | Real estate | 2025 |
| Essex Leisure & Recreational Ltd | Arts & recreation | 2014 |
| Essex Property Management Limited | Real estate | 2005 |
| Euro-Metrik Engineering Ltd | Construction | 2023 |
| Euroneed Limited | Real estate | 1991 |
| Executive Security Protection Ltd | Administrative & support | 2025 |
| Exemplifloor Ltd | Construction | 2026 |
| F T a Roofers Ltd | Construction | 2019 |
| Farnes Decorations Ltd | Wholesale & retail | 2017 |
| FEW Flooring Ltd | Construction | 2025 |
| First Response UK Maintenance Limited | Real estate | 2010 |
| Fishingessex Ltd | Agriculture & fishing | 2020 |
| Flash Rigging Ltd | Construction | 2024 |
| Fleming Motor Sales Limited | Wholesale & retail | 2014 |
| Flight Services Management Limited | Real estate | 2017 |
| Fordrole Developments Limited | Construction | 2021 |
| Fordrole Electrical Limited | Construction | 2016 |
| Foxes Abode Limited | Real estate | 2025 |
| Frida Films Limited | Information & communication | 2007 |
| FRM Electrical Solutions Ltd | Construction | 2025 |
| Frost Building & Construction Limited | Construction | 2010 |
| FWC Builders Limited | Construction | 2025 |
| FWC Property Ltd | Real estate | 2026 |
| G & M Homes Limited | Construction | 2015 |
| G R S Interiors Limited | Construction | 2014 |
| G S M L Limited | Real estate | 2025 |
| G3 Fisheries Ltd | Agriculture & fishing | 2017 |
| GBA Building and Maintenance Ltd | Construction | 2023 |
| Gidea Park Construction Ltd | Construction | 2023 |
| Gidea Park Glazing Ltd | Construction | 2023 |
| Giuseppe Properties Ltd | Real estate | 2020 |
| GJP Coachbuilders Ltd | Wholesale & retail | 2025 |
| Golding Services Management UK Ltd | Construction | 2021 |
| Good Service Management Ltd | Administrative & support | 2025 |
| GOP Loughton Trading Ltd | Hospitality | 2026 |
| Grass View Limited | Real estate | 2009 |
| Great Prospects International Limited | Professional & scientific | 1990 |
| Green & Pert Enterprises Ltd | Other services | 2018 |
| Green Green Consultants UK Ltd | Construction | 2026 |
| Green Properties (Kent & Sussex) Limited | Agriculture & fishing | 2000 |
| Greenwoods Hotel Management Ltd | Hospitality | 2014 |
| Greenwoods Properties & Investments Ltd | Real estate | 2014 |
| GSW Locks Ltd | Other services | 2026 |
| Guardian Response (UK) Ltd | Professional & scientific | 2025 |
| GW Electrical & Testing Ltd | Construction | 2026 |
| H and H Logistics Ltd | Professional & scientific | 2026 |
| H2O Plants Group Ltd | Water & waste | 2025 |
| HA Business Solutions (UK) Limited | Administrative & support | 2025 |
| Hadleigh EPC Limited | Real estate | 2012 |