| Egzan Pharma Ltd | Health & social care | 2023 |
| Ehanson Ltd | Health & social care | 2018 |
| Eikard Limited | Information & communication | 2015 |
| Eirra Postnatal Ltd | Health & social care | 2025 |
| EK Express Group Ltd | Transport & logistics | 2026 |
| EK Ground Specialist Ltd | Construction | 2025 |
| Eksperta Ltd | Professional & scientific | 2011 |
| El's Cafe Ltd | Hospitality | 2023 |
| Elas Construct Ltd | Construction | 2020 |
| Eleanor Shakespeare Limited | Arts & recreation | 2018 |
| Element Zero Construction Ltd | Construction | 2020 |
| Elementary Culture UK Limited | Other services | 2019 |
| Eleven London Limited | Construction | 2011 |
| Elgs Estates Ltd | Households | 2021 |
| Elio Motor Ltd | Transport & logistics | 2020 |
| Elisheva Homes Ltd | Professional & scientific | 2026 |
| Elisheva Property Group Limited | Real estate | 2026 |
| Elite London Contractors Ltd | Construction | 2010 |
| Elizz Ltd | Construction | 2012 |
| Ellis Red Property Trading Ltd | Real estate | 2023 |
| Ellumine Ltd | Information & communication | 2018 |
| Elmax Electrical Services Ltd | Manufacturing | 2021 |
| Elson Investments Limited | Real estate | 2025 |
| Elure Cleaning Limited | Administrative & support | 2025 |
| Eluxe Fleet Ltd | Administrative & support | 2023 |
| Elwyns Windows Limited | Construction | 2001 |
| Emeg Limited | Real estate | 2016 |
| Emerald Refurbishment Ltd | Construction | 2024 |
| Eminem Ltd | Hospitality | 2019 |
| EML Transport Services Ltd | Transport & logistics | 2023 |
| Emmanuael Finishing Limited | Construction | 2015 |
| Emmanuel COX Ltd | Real estate | 2024 |
| Emperor Construction Limited | Construction | 2009 |
| Encore Tennis Limited | Education | 2021 |
| Energiiise.Com Limited | Administrative & support | 2017 |
| Enhance Beauty Clinic Ltd | Other services | 2023 |
| Entity Building Solutions Ltd | Construction | 2025 |
| Envirecycle Ltd | Water & waste | 2023 |
| Environmental Planning Solutions (EPS) Limited | Professional & scientific | 2021 |
| EOM Limited | Professional & scientific | 2012 |
| Epsilon Media Limited | Professional & scientific | 2017 |
| Epsom Osteopathic Practice Limited | Health & social care | 2008 |
| ERM Construction Ltd | Construction | 2024 |
| Errington Manor Management Company Limited | Households | 1994 |
| Esayef Consulting Ltd | Professional & scientific | 2011 |
| Estamore Properties Limited | Real estate | 2003 |
| Ettaedge Solutions Ltd | Education | 2025 |
| Euro Mini Marketz Ltd | Other services | 2024 |
| Euroasia Consultancy PVT Ltd | Professional & scientific | 2020 |
| Eurochip Car Performance Ltd | Wholesale & retail | 2013 |
| Evan Manpower Services Limited | Information & communication | 2014 |
| Ever Beyond Events Ltd | Hospitality | 2025 |
| Everbo Management Ltd | Information & communication | 2022 |
| Evercure Ltd | Construction | 2025 |
| Everything LA Company Limited | Professional & scientific | 2023 |
| Exceed Plus Ltd | Real estate | 2019 |
| Excel Security Service Ltd | Administrative & support | 2017 |
| Excellence Protection Ltd | Financial services | 2017 |
| Excellent View Ltd | Health & social care | 2018 |
| Exito Solutions UK Ltd | Construction | 2023 |
| Extraless Ltd. | Wholesale & retail | 2016 |
| Eylul Deniz Limited | Hospitality | 2017 |
| Ezywatch Limited | Information & communication | 2014 |
| F & T Services Ltd | Professional & scientific | 2007 |
| F. Tahmasebi Limited | Health & social care | 2022 |
| F. Tahmasebi Properties Limited | Real estate | 2024 |
| F.O.Andino Ltd | Professional & scientific | 2026 |
| F.Shel Healthcare Limited | Health & social care | 2022 |
| Fabricated Window Systems Limited | Manufacturing | 1987 |
| Fabulaz Marquees Ltd | Administrative & support | 2023 |
| Fabulous Marquees Ltd | Administrative & support | 2023 |
| Faim (UK) Limited | Professional & scientific | 2000 |
| Fair Talent Recruitment Ltd | Administrative & support | 2024 |
| Fairview Housing & Support Limited | Real estate | 2011 |
| FAL07 Construction Ltd | Construction | 2017 |
| Famous Brands Shop Ltd | Wholesale & retail | 2021 |
| Fantastic Morley Ltd | Hospitality | 2025 |
| FAR Beyond Education Ltd | Education | 2022 |
| Farrants Flooring Ltd | Wholesale & retail | 2013 |
| Farrell Financial Limited | Administrative & support | 2002 |
| Fast Track Business Consulting Ltd | Professional & scientific | 2025 |
| Fats and Franks Kitchen Ltd | Hospitality | 2017 |
| FCC Project Management Limited | Construction | 2006 |
| FCI Holdings Ltd | Real estate | 2022 |
| FEI DA London Limited | Transport & logistics | 2016 |
| FG One Plastering Services Limited | Construction | 2025 |
| Fiery Celt Limited | Hospitality | 2018 |
| Fife Ventures Limited | Information & communication | 2004 |
| Final Call Production Theatre Company Ltd | Arts & recreation | 2015 |
| Financial Information Systems Limited | Professional & scientific | 2012 |
| Finch Money Ltd | Information & communication | 2025 |
| Fine Art Accounting Ltd | Wholesale & retail | 2015 |
| Fine CUT Construction Limited | Construction | 2017 |
| Fire & AXE Limited | Other services | 2017 |
| Firecore Limited | Information & communication | 2009 |
| Firmfix Electrical Ltd | Professional & scientific | 2026 |
| First Africon Investment Management (UK) Limited | Professional & scientific | 1998 |
| Fishburn Convenience Store Ltd | Wholesale & retail | 2021 |
| Fisherwilliamsconsulting Ltd | Information & communication | 2017 |
| Fitzen 2 Pilates Limited | Other services | 2025 |