| Duchemin Williams Limited | Financial services | 2016 |
| Duelfuel Nutrition Limited | Manufacturing | 2020 |
| Dunne and Co Restorations Ltd | Construction | 2021 |
| Dunthrop Farms Limited | Agriculture & fishing | 1990 |
| Durable Limited | Professional & scientific | 1989 |
| Durable Vision Limited | Extraterritorial | 1989 |
| Dusek Design Associates Limited | Administrative & support | 2002 |
| Dylan James Ltd | Professional & scientific | 2019 |
| Dynamic Soils Limited | Manufacturing | 2022 |
| E Hooper Consulting Ltd | Professional & scientific | 2024 |
| E J Education Limited | Education | 2022 |
| E Sampson Ltd | Professional & scientific | 2013 |
| Eagle Works Management Company Limited | Households | 2006 |
| Early Words Speech Therapy Ltd | Education | 2024 |
| East Claydon Limited | Households | 2018 |
| East Manor Developments Ltd | Construction | 2025 |
| EAT Drink Think Nutrition Limited | Health & social care | 2022 |
| Ebike Barn Ltd | Wholesale & retail | 2019 |
| Eco-Pac Limited | Extraterritorial | 1921 |
| Ecobox Buildings Ltd | Professional & scientific | 2019 |
| Ecom FX Limited | Administrative & support | 2026 |
| Ecommerce Security Limited | Information & communication | 2012 |
| Edbac Ltd | Administrative & support | 2024 |
| EDC Design Ltd | Professional & scientific | 2017 |
| Edentates Limited | Professional & scientific | 2023 |
| Edge Intelligence Limited | Financial services | 2026 |
| Edgeley Road Property Company Limited | Extraterritorial | 2006 |
| Edgewood Capital Limited | Financial services | 2026 |
| Edgewood Developments Limited | Construction | 2026 |
| Edrage Design Ltd | Administrative & support | 2011 |
| Edrops UK Ltd | Manufacturing | 2024 |
| Edson Green Financial Limited | Financial services | 2026 |
| EHP Consultants Limited | Professional & scientific | 2020 |
| Eigenstate Education Ltd | Education | 2023 |
| Eira Teleri Photography Ltd | Professional & scientific | 2025 |
| Elcho Limited | Financial services | 2019 |
| Electronic Bits Limited | Information & communication | 2021 |
| Electronic Business Information Technology Solutions LLP | | 2005 |
| Element Design UK Limited | Professional & scientific | 2006 |
| ELEV8 Ventures Limited | Administrative & support | 2026 |
| Elevatar Technologies Limited | Professional & scientific | 2014 |
| Elevate Kids Athletics Ltd | Education | 2025 |
| Elevate Presents Events Ltd | Real estate | 2025 |
| Elite Metal Holdings UK Limited | Manufacturing | 2020 |
| Ella's Kitchen (Brands) Limited | Manufacturing | 2004 |
| Ella's Kitchen (IP) Limited | Administrative & support | 2009 |
| Ella's Kitchen Group Limited | Professional & scientific | 2009 |
| Elliott James Consulting Limited | Administrative & support | 2007 |
| Ellipsis Associates Limited | Professional & scientific | 2019 |
| ELM Court (Henley-On-Thames) Residents Limited | Households | 1986 |
| Elms Barn Estates Limited | Real estate | 2014 |
| Elysium Music Limited | Arts & recreation | 2007 |
| Empower EPC Limited | Professional & scientific | 2026 |
| Endura Properties Limited | Real estate | 2021 |
| Energy Control Products Limited | Professional & scientific | 1972 |
| Energy PAL Limited | Energy | 2020 |
| Enjay Consulting Ltd | Professional & scientific | 2025 |
| Enzo Auto Engineering Limited | Financial services | 2023 |
| Epeshe Ltd | Professional & scientific | 2020 |
| Epiphany Projects Ltd | Construction | 2004 |
| EQ Holdings Limited | Administrative & support | 2007 |
| EQ8 Ltd | Professional & scientific | 2022 |
| Equiton Property Ltd | Real estate | 2019 |
| Eredita Partners Ltd | Financial services | 2025 |
| Errington FDS Limited | Professional & scientific | 2013 |
| Escapade 16 Ltd | Real estate | 2021 |
| Escapade 17 Ltd | Real estate | 2021 |
| Essential Aromatherapy Ltd | Health & social care | 2008 |
| Essential Therapy Training Ltd | Education | 2019 |
| Ethical Etfs Limited | Information & communication | 2021 |
| European Consumer Claims Limited | Other services | 2016 |
| European Drug Safety Limited | Real estate | 2009 |
| EV Solutions Group Ltd | Information & communication | 2021 |
| EVE White Literary Agency Limited | Administrative & support | 2017 |
| EVE White Literary Trading Limited | Administrative & support | 2025 |
| Every Cloud Films Limited | Information & communication | 2014 |
| Every Trade Covered Limited | Construction | 2014 |
| Evolve-Care (England) Ltd | Health & social care | 2017 |
| Experience Henley Ltd | Information & communication | 2022 |
| Expert Fitness Gym Limited | Arts & recreation | 2018 |
| Expert Fitness Studios Limited | Arts & recreation | 2005 |
| Extended Reality GEN AI Technologies Accelerator Limited | Information & communication | 2023 |
| Ezotrade Ltd | Construction | 2023 |
| Fabio's Cuts Limited | Other services | 2019 |
| Factek Ltd | Administrative & support | 2014 |
| Fairmile Court (Henley-On-Thames) Management Limited | Households | 1979 |
| Fairmile Financial Planning Ltd | Professional & scientific | 2026 |
| Fairmile Henley Holdings Limited | Real estate | 2025 |
| Fairmile Hinton Opco Limited | Financial services | 2020 |
| Fairmile Hinton Road 2 Limited | Construction | 2021 |
| Fairmile Hinton Road 3 Limited | Construction | 2024 |
| Fairmile Hinton Road Limited | Construction | 2019 |
| Fairmile Lindsay Road Limited | Construction | 2021 |
| Fairview Works Management Company Limited | Households | 1986 |
| Faithh Physiotherapy and Acupuncture Clinic Ltd | Health & social care | 2024 |
| FAMOUS4 Communications Limited | Professional & scientific | 2007 |
| FAT BUG Studios Ltd | Information & communication | 2026 |
| FAT Rabbit Ventures Ltd | Financial services | 2022 |
| FCB Hospitality Limited | Hospitality | 2024 |
| FDT Retails Ltd | Wholesale & retail | 2026 |