| Dial-A-Digger (GB) Limited | Professional & scientific | 2009 |
| Dickens Gate (Rudloe) Management Company Limited | Households | 2018 |
| Dickens Heath (Phase 8) Management Company Limited | Households | 2006 |
| Didcot Grove Management Company Limited | Real estate | 2022 |
| Dignity Hygiene Products Limited | Health & social care | 2005 |
| Dillyfields (Avonwick) Management Company Limited | Households | 2011 |
| Dinexpress Ltd | Transport & logistics | 2015 |
| Disabled Transport Services Limited | Transport & logistics | 2010 |
| Dispos Southern Limited | Wholesale & retail | 2012 |
| Dixon Stewart LLP | | 2016 |
| Dolcoath (Boslowen) Management Company Limited | Households | 2011 |
| Dormy Care Home Limited | Construction | 2015 |
| Dorset Bees Limited | Wholesale & retail | 2014 |
| Dorset Property Maintenance Limited | Administrative & support | 2000 |
| Double H (Holdings) Limited | Professional & scientific | 1971 |
| Double H (Nurseries) Limited | Wholesale & retail | 1973 |
| Double H (Services) Limited | Information & communication | 2025 |
| Double H Renewables Limited | Wholesale & retail | 2014 |
| Dove House (Mitcham) RTM Company Limited | Households | 2026 |
| Dove Manor Management Company Limited | Households | 2019 |
| Doxment Management Company Limited | Other services | 1980 |
| DP174 Management Limited | Households | 2022 |
| DR Becky Ltd | Health & social care | 2026 |
| DR Lucy Godwin Limited | Health & social care | 2021 |
| Drakes Place (Aylesbury) Management Company Limited | Households | 2014 |
| Dream Gourmet Takeaway Ltd | Hospitality | 2021 |
| Dreamcatcher Homes Limited | Construction | 2000 |
| Drew Group Holdings Limited | Professional & scientific | 2020 |
| Duell UK Ltd | Manufacturing | 2019 |
| Dunmail (Residents Management) Limited | Households | 2004 |
| Dunningford Chase (Hornchurch) Management Company Limited | Real estate | 2013 |
| Durlston Court School Trust Limited | Education | 1973 |
| Duxbury Manor (Chorley) Management Company Limited | Households | 2011 |
| E J Platt Limited | Other services | 2025 |
| E&H Home Improvements Limited | Construction | 2025 |
| Eaglescott Limited | Professional & scientific | 2018 |
| Earls Garden Management Company Limited | Real estate | 2014 |
| East HAM Market Energy Centre Management Company Limited | Households | 2020 |
| East HAM Market Residents’ Management Company Limited | Households | 2020 |
| Eastgate (Management Company) NO.1 Limited | Households | 2009 |
| Eastham Green Management Company Limited | Households | 2016 |
| Eastley Wootton Limited | Households | 1992 |
| Eastmoors Riding School & Livery Limited | Arts & recreation | 2017 |
| Eastwick Lodge Management Company Limited | Other services | 2003 |
| Ebbsfleet Cross Management Company Limited | Households | 2019 |
| Ebec Management Ltd | Real estate | 2022 |
| Eclipse Estates Limited | Construction | 1980 |
| Eddie Fish and Chips Ltd | Hospitality | 2025 |
| Eden Garden Property Investments Ltd | Real estate | 2022 |
| Edge Inspired Limited | Manufacturing | 2015 |
| Edge, Manford Way Management Company Limited | Households | 2023 |
| Ediss Electric Limited | Professional & scientific | 2007 |
| Edmund Court Management Company Limited | Households | 2008 |
| Edwalton (Sharp Hill) Management Company Limited | Households | 2017 |
| Edward Court (Moordown) Limited | Real estate | 1989 |
| Eirecore Ltd | Construction | 2025 |
| Elderwood Place Management Company Limited | Households | 2018 |
| Electec Design Limited | Information & communication | 2007 |
| Elegance of New Milton Limited | Other services | 2002 |
| Elevation Estate Management Company Limited | Households | 2015 |
| Eliot Mews (Nuneaton) Management Company Limited | Households | 2005 |
| Eliots View (Tuttle Hill) Management Company Limited | Households | 2010 |
| Elite Lettings & Management Limited | Real estate | 2014 |
| Elizabeth Court (New Milton) Limited | Households | 1973 |
| Elizabeth Court (Ringwood) Management Co. Ltd | Households | 1998 |
| Ellis & Warren Marine Ltd | Manufacturing | 2011 |
| ELM Court (New Milton) Management Company Limited | Households | 1992 |
| ELM Farm (Wymondham) Residents Management Company Limited | Households | 2020 |
| ELM Park (Matford) Management Company Limited | Households | 2020 |
| ELM Park Apartments (Matford) Management Company Limited | Households | 2020 |
| ELM Tree Park Management Company (Beverley) Limited | Households | 2014 |
| Elmbridge Gardens Management Company Limited | Households | 2014 |
| Elmington Parcel 1 Management Company Limited | Real estate | 2016 |
| Elmington Parcel 3 Management Company Limited | Professional & scientific | 2016 |
| ELY Street Management Company Limited | Households | 1998 |
| ELZ Construction Ltd | Construction | 2026 |
| EM Coaching Ltd | Arts & recreation | 2015 |
| Emmet's Reach (Birkenshaw) Management Company Limited | Real estate | 2017 |
| Enfin Ortho Ltd | Professional & scientific | 2026 |
| Enford Court (West One) RES. Assoc. Ltd | Households | 1997 |
| Engleburn Care Home Ltd | Health & social care | 2018 |
| Ensleigh Residents Management Company Limited | Administrative & support | 2016 |
| Enviro-Save (UK) Limited | Wholesale & retail | 2004 |
| EP Southern Limited | Construction | 2014 |
| Equinox Three Management Company Limited | Households | 2022 |
| Escala (Wickford) Management Company Limited | Real estate | 2013 |
| Espp Ltd | Information & communication | 2017 |
| Essential H2O Ltd | Water & waste | 2020 |
| Etruria Village Management Company Limited | Households | 2004 |
| ETS Tyre & Battery Limited | Wholesale & retail | 2001 |
| Evans Crane Hire Ltd | Administrative & support | 2020 |
| Eveleighs Court Management Limited | Households | 2005 |
| Evergreen Home Solutions LLP | | 2016 |
| Everton Brook Ltd | Households | 2008 |
| Everton Garage (Holdings) Limited | Professional & scientific | 1999 |
| Everton Garage Limited | Wholesale & retail | 1960 |
| Evoke (Warley) Management Company Limited | Real estate | 2016 |
| Ewalsh Limited | Professional & scientific | 2018 |
| EX3 (Topsham) Management Limited | Households | 2024 |
| Excalibur Business Consultants Limited | Professional & scientific | 2022 |