| Eric Chappell Productions Limited | Arts & recreation | 1978 |
| Eridaw Limited | Construction | 2013 |
| Erinway Limited | Professional & scientific | 1989 |
| Ertia Limited | Professional & scientific | 2020 |
| Esben Business IT Solutions Limited | Information & communication | 2012 |
| Esben Motorsport Limited | Wholesale & retail | 2019 |
| Escene-It. Ltd | Professional & scientific | 2013 |
| Espo Health Care Ltd | Health & social care | 2013 |
| Estu Interiors Limited | Construction | 2026 |
| Estu Limited | Construction | 2003 |
| ET Cat Ltd | Professional & scientific | 2018 |
| Eterna Media Limited | Manufacturing | 2011 |
| Etherley Partnership LLP | | 2010 |
| Ethtech Talent Ltd. | Administrative & support | 2022 |
| ETS Removals and Storage Limited | Transport & logistics | 2002 |
| Eurocare Motor Engineers Ltd | Wholesale & retail | 2003 |
| Eurotrinity Ltd | Real estate | 1995 |
| Euroynome Limited | Professional & scientific | 1998 |
| Evela Ltd | Wholesale & retail | 2023 |
| Everest Commercial Cleaning Ltd | Administrative & support | 2023 |
| Everest Inn Grantham Ltd | Hospitality | 2010 |
| Eversfield Catering Ltd | Hospitality | 2018 |
| Everything Occasions Limited | Other services | 2019 |
| Evidology Systems Limited | Information & communication | 2019 |
| EX Reme IT Consultancy Services Ltd | Information & communication | 2026 |
| Exact Buyings Ltd | Wholesale & retail | 2022 |
| Exact Guarding Ltd | Administrative & support | 2022 |
| Excel Property Ltd | Real estate | 2025 |
| Excellent Cabs Ltd | Transport & logistics | 2020 |
| Excelsior Consultancy Ltd | Professional & scientific | 2011 |
| Excelsior Living Limited | Administrative & support | 2014 |
| Exchange Engineering Limited | Wholesale & retail | 1985 |
| Exhibit Cabinet Hire Ltd | Administrative & support | 2021 |
| Exmouth House GP Limited | Extraterritorial | 2017 |
| Exmouth House Limited Partnership | | 2018 |
| Expert H.R. Outsourcing PVT Limited | Information & communication | 2025 |
| Expert Sales Progression Limited | Real estate | 2019 |
| Express Entertainments Limited | Wholesale & retail | 2023 |
| Express Sheds Ltd | Wholesale & retail | 2024 |
| Express Timber Wood Ltd | Wholesale & retail | 2017 |
| Extrusion-Link Limited | Manufacturing | 1997 |
| F & N Worldwide Logistics Limited | Transport & logistics | 1983 |
| F&N Worldwide Movers Limited | Extraterritorial | 1994 |
| F&P Groundworks Limited | Construction | 2022 |
| F. Casswell Farms Limited | Agriculture & fishing | 1976 |
| F14 Capital Holdings Ltd | Financial services | 2023 |
| Fab-Linc Ltd | Manufacturing | 2009 |
| Faber Contracts Limited | Wholesale & retail | 2018 |
| Fair Gardens Plant Centre Limited | Wholesale & retail | 1976 |
| Fairland Developments Limited | Real estate | 2004 |
| Falcon Logistics (2016) Limited | Transport & logistics | 2016 |
| Falcon Sun Holdings Ltd | Real estate | 2021 |
| FAM Enterprises Limited | Real estate | 2008 |
| FAR LED Ventures Ltd | Financial services | 2024 |
| Faraday House Functions Limited | Hospitality | 2014 |
| Fare Electrical Solutions Ltd | Construction | 2018 |
| Farm Electronics Limited | Manufacturing | 1978 |
| Farmdrive Wilts Limited | Construction | 2019 |
| Farrier Scholar Ltd | Education | 2024 |
| Farrow Friends Ltd | Health & social care | 2021 |
| Fastener Technology Limited | Professional & scientific | 2001 |
| Fatstrippa Corp UK Ltd | Other services | 2019 |
| Fatstrippa UK Limited | Hospitality | 2003 |
| Feast and Foliage Rutland Limited | Extraterritorial | 2024 |
| Feel Good Grapes Limited | Wholesale & retail | 2014 |
| Fellingham Group Limited | Arts & recreation | 2024 |
| Felloh Ltd | Information & communication | 2020 |
| Feolurm Ltd | Construction | 2023 |
| Fhethoem Ltd | Wholesale & retail | 2021 |
| Fibre Futures Limited | Information & communication | 2016 |
| Fiddlersfirs Limited | Financial services | 2024 |
| Fidentia (NO. 001) Limited | Financial services | 2011 |
| Fidentia (NO. 008) Limited | Financial services | 2011 |
| Fidentia (NO. 012) Limited | Financial services | 2011 |
| Fidentia (NO. 014) Limited | Financial services | 2012 |
| Fidentia (NO. 016) Limited | Financial services | 2012 |
| Fidentia (NO. 017) LLP | | 2013 |
| Fidentia (NO. 018) Limited | Financial services | 2013 |
| Fidentia (NO. 019) Limited | Financial services | 2013 |
| Fidentia (NO. 020) Limited | Financial services | 2014 |
| Fidentia (NO.021) Limited | Financial services | 2018 |
| Fidentia 1009 LLP | | 2010 |
| Fidentia 500 Limited | Financial services | 2010 |
| Fidentia 501 Limited | Financial services | 2015 |
| Fidentia Capital 1 LLP | | 2006 |
| Fidentia Holdings Limited | Professional & scientific | 2012 |
| Fidentia NO 007 LLP | | 2006 |
| Fidentia NO 146 LLP | | 2006 |
| Fidentia NO 160 LLP | | 2006 |
| Fidentia NO 171 LLP | | 2006 |
| Fidentia NO 191 LLP | | 2006 |
| Fidentia NO 205 LLP | | 2006 |
| Fidentia NO 326 LLP | | 2007 |
| Fidentia NO 364 LLP | | 2007 |
| Fidentia NO 367 LLP | | 2007 |
| Fidentia NO 403 LLP | | 2007 |
| Fidentia NO 412 LLP | | 2007 |
| Fidentia NO 457 LLP | | 2008 |
| Fidentia NO 479 LLP | | 2008 |
| Fidentia NO 571 LLP | | 2011 |