| Deanguard Limited | Manufacturing | 1970 |
| Debar Land Company Limited | Administrative & support | 2024 |
| Deckloop Limited | Information & communication | 2026 |
| Demo and Waste Services Ltd | Water & waste | 2023 |
| Dental Studio 19 Ltd | Health & social care | 2013 |
| Dentistry 19 Ltd | Health & social care | 2013 |
| Denyer Property Group Ltd | Construction | 2021 |
| Designer Doors & Windows Ltd | Construction | 2019 |
| Develop-Insite CIC | Education | 2014 |
| Deventrade UK Limited | Administrative & support | 1991 |
| DG People Solutions Ltd | Administrative & support | 2025 |
| Diamond Dentures Limited | Manufacturing | 2011 |
| Digital IQ Consultancy Limited | Professional & scientific | 2020 |
| Direzione Finance Limited | Professional & scientific | 2025 |
| Discrimination Investigation & Mediation Services Ltd | Administrative & support | 2022 |
| Diverse Performing Arts Limited | Arts & recreation | 2011 |
| Divitis Ltd | Professional & scientific | 2018 |
| DM4L Ltd | Professional & scientific | 2021 |
| DMC Installations Limited | Construction | 2005 |
| DMR Electrical and Security Limited | Construction | 2020 |
| DNS Commercials Limited | Other services | 2016 |
| Dongworth Limited | Professional & scientific | 2005 |
| Doubleday House Management Company Limited | Households | 2011 |
| Douglasfts Ltd | Administrative & support | 2021 |
| Dower House Preston Limited | Real estate | 2020 |
| DP Aviation Limited | Other services | 2023 |
| DPS Compliance Ltd | Construction | 2026 |
| DR Bedir Health Ltd | Health & social care | 2025 |
| Draper Carpentry Contractors Ltd | Construction | 2004 |
| Draper Construction & Development Ltd | Construction | 2022 |
| Drawtrue Ltd | Professional & scientific | 2017 |
| Drew Capital Investments Ltd | Financial services | 2018 |
| Drew Capital Markets Ltd | Financial services | 2015 |
| Driver CPC 4U Limited | Education | 2010 |
| DSP Motor Trade Consultancy Limited | Transport & logistics | 2009 |
| Duchess Farms Holdings Limited | Manufacturing | 2022 |
| Duchess Farms Limited | Manufacturing | 2012 |
| Duzce Transport Ltd | Other services | 2016 |
| Dynamiccrm Ltd | Professional & scientific | 2025 |
| E C Eco Energy Limited | Energy | 2023 |
| E.C.W. Mynott & Sons Limited | Extraterritorial | 1980 |
| E1 Electrical and Security Limited | Construction | 2022 |
| Earnest Property Services Ltd | Real estate | 2023 |
| East 9 Management Company Limited | Households | 2014 |
| Ebme.Co.Uk Limited | Other services | 2001 |
| Ebony Ellis Weddings Limited | Hospitality | 2021 |
| Ecology Routes Ltd | Professional & scientific | 2022 |
| Ecoloyia Terra Ltd | Professional & scientific | 2026 |
| Edwards Consulting Services Ltd | Professional & scientific | 2024 |
| Efkay Chemicals Limited | Wholesale & retail | 1976 |
| Electrical Managed Services Ltd | Construction | 2023 |
| Elite Business Funding Limited | Professional & scientific | 2018 |
| Elite Worldwide Logistics Limited | Transport & logistics | 2014 |
| Ellie-Rose Limited | Manufacturing | 2000 |
| Ellison Electrical Contractors Limited | Construction | 2016 |
| Elmbridge Hall Management Company Limited | Households | 1999 |
| Elysian Services Ltd | Administrative & support | 2021 |
| Engage Fitness Health and Personal Coaching Ltd | Other services | 2021 |
| Entarro Ltd | Information & communication | 2025 |
| EON Barker Limited | Information & communication | 2019 |
| ERA Care Limited | Health & social care | 2006 |
| ERA Care Properties Limited | Real estate | 2012 |
| Esdk IT Limited | Information & communication | 2025 |
| Essex Ductwork Services Ltd | Construction | 2015 |
| Essex Elite Dog Training Limited | Agriculture & fishing | 2024 |
| Essex Garden Rooms Limited | Construction | 2024 |
| Estmanco (Kingsley Road Debden) Limited | Households | 1986 |
| Evans Specialists Plasterers Ltd | Construction | 2008 |
| Evans Trade Solutions Limited | Wholesale & retail | 2024 |
| Everglow Oven Cleaning Ltd | Administrative & support | 2023 |
| Exsarcio Limited | Administrative & support | 2017 |
| Exsarcio Solutions Ltd | Construction | 2021 |
| Extensive Holdings Limited | Real estate | 1953 |
| Extreme Mailing House Limited | Other services | 2017 |
| Extreme Properties Limited | Real estate | 2021 |
| F.E.M Investments Ltd | Administrative & support | 2019 |
| Facefitness Ltd | Other services | 2024 |
| Fahn Consultancy Ltd | Construction | 2023 |
| Fairlawns Limited | Households | 1998 |
| Fairplay Music City Ltd | Other services | 2015 |
| Fatherandson Wholesale Ltd | Wholesale & retail | 2022 |
| FDH Services Ltd | Construction | 2017 |
| Felman’S First Ltd | Wholesale & retail | 2018 |
| Fenwick Jordan Ltd | Financial services | 2025 |
| Fine & Country (NY) Ltd | Real estate | 2021 |
| First Call Party Wall Surveyors Ltd | Construction | 2018 |
| First Class Financial Solutions Limited | Financial services | 2006 |
| First Sovereign Mews Management Company Limited | Households | 1988 |
| Fishyfingers JB Limited | Agriculture & fishing | 2026 |
| Flavin Media Ltd | Administrative & support | 2025 |
| Flexfare Limited | Administrative & support | 2016 |
| Floatation and Wellness Hub Ltd | Health & social care | 2023 |
| Focus Hairdressing Limited | Other services | 2008 |
| Footstep Homes Limited | Construction | 2013 |
| Foremost Resin Projects Ltd | Construction | 2016 |
| Forest Hall Developments Ltd | Construction | 2021 |
| Forresters Images Limited | Professional & scientific | 2015 |
| Fortima Limited | Information & communication | 2009 |
| Fortitude Property Trading Limited | Real estate | 2021 |
| Fortitude Trading Limited | Administrative & support | 2012 |