| European Shop 1 Limited | Wholesale & retail | 2024 |
| Europepacking Ltd | Transport & logistics | 2020 |
| EVE Cullen-Cornes Interior Design Limited | Real estate | 2019 |
| Eventaly Limited | Other services | 2023 |
| Evergreen Catering Ltd | Hospitality | 2026 |
| Evergreen Salons Ltd | Other services | 2020 |
| Eversafe Fire & Safety Ltd | Professional & scientific | 2024 |
| Every Vehicle Lease Limited | Administrative & support | 2021 |
| Evolution Systems Limited | Manufacturing | 1984 |
| Evomovin Ltd | Professional & scientific | 2024 |
| EW64 Limited | Professional & scientific | 2025 |
| Excalibur Barbers Ltd | Other services | 2018 |
| Executive Drives & Rides Ltd | Transport & logistics | 2025 |
| Executive Edge Group Ltd | Professional & scientific | 2025 |
| Exley Group Limited | Transport & logistics | 2023 |
| Exotic Cellar Limited | Hospitality | 2016 |
| Exotic Products Limited | Wholesale & retail | 2010 |
| Exotikka Ltd | Hospitality | 2011 |
| Expert Electrical Services (Staffordshire and Cheshire) Limited | Energy | 2014 |
| Expert Trade Services Limited | Construction | 2014 |
| Expert Witness in Health & Social Care Ltd | Health & social care | 2025 |
| External Facade Solutions Ltd | Construction | 2019 |
| F.A.B Systems Holdings Limited | Financial services | 2022 |
| F.A.B Systems Limited | Construction | 2002 |
| F.A.S. (UK) Limited | Professional & scientific | 2003 |
| Faari Ltd | Wholesale & retail | 2025 |
| FAB General Services Ltd | Administrative & support | 2025 |
| Faceifi Limited | Information & communication | 2013 |
| Factis Ltd | Administrative & support | 2023 |
| Factory Framing Centre Limited | Manufacturing | 2010 |
| FAF Developments Ltd | Construction | 2024 |
| FAF Residential Ltd | Real estate | 2025 |
| FAF Residential Properties Ltd | Real estate | 2025 |
| FAI LO Property Limited | Real estate | 2023 |
| Fairway Services Holdings Limited | Financial services | 2024 |
| Fairway Services Ltd | Wholesale & retail | 2003 |
| Faith Design and Marketing Limited | Professional & scientific | 2019 |
| Faith in One Ltd | Real estate | 2026 |
| Family Fish House Ltd | Hospitality | 2024 |
| Family Food 1 Ltd | Hospitality | 2026 |
| Family WIN Zone Ltd | Arts & recreation | 2025 |
| Fannon Engineering Services Limited | Professional & scientific | 2025 |
| Fantastic Kebab & Pizza Ltd | Hospitality | 2017 |
| Faraday-Fleming Laboratory Limited | Professional & scientific | 2021 |
| Farioli Freeflow Ltd | Information & communication | 2025 |
| Farm Supplier Limited | Wholesale & retail | 2023 |
| Fast Commercial Group Ltd | Administrative & support | 2024 |
| Fast Freight Midlands Ltd. | Transport & logistics | 2011 |
| Fastidious Ventures Ltd | Information & communication | 2025 |
| FAT Dog Property Ltd | Real estate | 2019 |
| Favourite Chinese Takeaway Ltd | Hospitality | 2025 |
| Favourite Thai Limited | Hospitality | 2019 |
| FAY Mayer Recruitment Limited | Administrative & support | 1999 |
| FB4CARE Ltd | Wholesale & retail | 2024 |
| Featured Property Co Limited | Real estate | 2024 |
| Felix Breeze Ltd | Information & communication | 2020 |
| Fellini Pizza and Grill Limited | Hospitality | 2018 |
| Feloshacilly Rail Services Limited | Construction | 2015 |
| Femog Systems Management Ltd | Professional & scientific | 2017 |
| Fenec Ltd | Financial services | 2018 |
| Fenham Playgroup Ltd | Health & social care | 2016 |
| Ferret Ales Ltd | Wholesale & retail | 2014 |
| Fewsters (Plant Services) Limited | Extraterritorial | 1964 |
| Fewsters Limited | Real estate | 1944 |
| Fewsters Services Limited | Water & waste | 1949 |
| FFF Properties NE Ltd | Real estate | 2024 |
| FGC Property Ltd | Real estate | 2020 |
| Field Studies Ireland CIC | Education | 2021 |
| Filco Services Limited | Manufacturing | 2006 |
| Fillersave Ltd | Wholesale & retail | 2024 |
| Filter Cages Limited | Manufacturing | 2009 |
| Fineline Thermal Finishings Ltd | Construction | 2012 |
| Finethicals Limited | Professional & scientific | 2025 |
| Fireaway Pizza Stoke on Trent Ltd | Hospitality | 2019 |
| Fireglobal Limited | Other services | 2016 |
| Firkin Estates Ltd | Real estate | 2018 |
| First Car Sales MGM Limited | Wholesale & retail | 2025 |
| First Pillar Properties Limited | Real estate | 2025 |
| FIRST4FLOORS (NI) Limited | Wholesale & retail | 2014 |
| Fish Bar 1 Ltd | Hospitality | 2025 |
| Fish Hill Ltd | Other services | 2015 |
| Fitout and Property Ltd | Construction | 2024 |
| Fitz Aesthetics Ltd | Professional & scientific | 2024 |
| Fitz Trading Limited | Wholesale & retail | 2024 |
| Fitzjohn Flooring Ltd | Construction | 2010 |
| Five Dental Limited | Health & social care | 2026 |
| Five Towns KOI Ltd | Wholesale & retail | 2022 |
| Fiyom Ventures Ltd | Wholesale & retail | 2005 |
| Flames Fusion Ltd | Hospitality | 2025 |
| Flames Rugeley Limited | Hospitality | 2017 |
| Flash Topup Limited | Information & communication | 2013 |
| Flex Commerce Ltd | Information & communication | 2026 |
| Floki Limited | Hospitality | 2024 |
| Florin Chivu Ltd | Transport & logistics | 2026 |
| Flourishing Upscale Property Limited | Real estate | 2019 |
| Flower Pack Ltd | Wholesale & retail | 2023 |
| FLOWERS2YOU Limited | Information & communication | 2024 |
| Flowery Fields Ltd | Construction | 2024 |
| Flowline Inspection Ltd | Construction | 2007 |
| Flowship Limited | Wholesale & retail | 2025 |