| Excelerated Performance Ltd | Administrative & support | 2016 |
| Excelio Technology Corporation Limited | Professional & scientific | 2009 |
| Excellent Hand Carwash and Valeting Ltd | Wholesale & retail | 2024 |
| Excite Recruitment Limited | Administrative & support | 2008 |
| Exds Limited | Administrative & support | 2001 |
| Executive JET Personnel Limited | Manufacturing | 2003 |
| Executive Solutions Consultancy Ltd | Professional & scientific | 2018 |
| Exemplary Synthesis Limited | Health & social care | 2025 |
| Exfo Europe Limited | Manufacturing | 1988 |
| Eximia Investments Limited | Real estate | 2025 |
| Exodos Limited | Administrative & support | 2017 |
| Exotic and Supercar Ltd | Wholesale & retail | 2024 |
| Expd Holdings Limited | Financial services | 2022 |
| Expd On-Line Barcode Systems Limited | Information & communication | 1997 |
| Expd On-Line Holdings Limited | Financial services | 2022 |
| Expert Peripheral Designs Limited | Information & communication | 1992 |
| Expert Services Directory Limited | Administrative & support | 2025 |
| Experts in Healthcare Ltd | Health & social care | 2022 |
| Explosive Risk Management Limited | Administrative & support | 2009 |
| Export Associates Limited | Professional & scientific | 2023 |
| Exsabre Ltd | Manufacturing | 2026 |
| Extensive Limited | Wholesale & retail | 2000 |
| Extreme Construction Ltd | Construction | 2014 |
| Extreme Garden Services Ltd | Administrative & support | 2024 |
| EYE Art Garden Ltd | Other services | 2014 |
| Eyitenne-Buwa Limited | Professional & scientific | 2020 |
| F & P Rail Limited | Construction | 2018 |
| F.S.Hawkins Limited | Real estate | 1959 |
| Faber Electrical Ltd | Construction | 2022 |
| Fabulous Essentials Ltd | Manufacturing | 2020 |
| Faceplant International Limited | Arts & recreation | 2016 |
| Fair Oak Bookkeeping Ltd | Professional & scientific | 2018 |
| Fair Oak Plumbing & Heating Limited | Construction | 2019 |
| Fair Oak Project Services Limited | Professional & scientific | 2008 |
| Fair Oak Property Limited | Construction | 1993 |
| Fair Oak Property Maintenance Limited | Construction | 2025 |
| Fairfield Development (Calmore) Limited | Construction | 2022 |
| Fairmile Property Lettings (West Street) Ltd | Real estate | 2021 |
| Fairmile Property Lettings Ltd | Real estate | 2020 |
| Fairplay Management Limited | Real estate | 1995 |
| Fairplay Residential Properties Limited | Real estate | 2003 |
| Fairway Drives & Design Ltd | Construction | 2018 |
| Fairxpress Ltd | Transport & logistics | 2025 |
| Faith Hope and Families Limited | Health & social care | 2013 |
| Falcon International Group Limited | Wholesale & retail | 2020 |
| Falcon Precision Limited | Manufacturing | 1998 |
| Falcon Professional Services Ltd | Professional & scientific | 2024 |
| Faldrax Consulting Ltd | Professional & scientific | 2019 |
| Fall Works Ltd | Construction | 2013 |
| Fame Holdings Limited | Financial services | 2020 |
| FAR East Spice Ltd | Hospitality | 2019 |
| Faradays Limited | Construction | 2006 |
| Faradays Mechanical Services Limited | Construction | 2024 |
| Farm Fresh Produce Ltd | Extraterritorial | 2013 |
| Farslan Ltd | Hospitality | 2024 |
| Fast Motion Limited | Wholesale & retail | 2026 |
| Faster Ecom Limited | Wholesale & retail | 2024 |
| Favergill Holdings Limited | Real estate | 1997 |
| Favergill Limited | Real estate | 1988 |
| FB Estates Ltd | Real estate | 2016 |
| Fcle Ltd | Education | 2020 |
| Fcs-Live Limited | Professional & scientific | 2011 |
| FEC Consultancy Ltd | Professional & scientific | 2023 |
| Fedbucks Limited | Health & social care | 2017 |
| Fee-Bees Honey Limited | Wholesale & retail | 2024 |
| Feedthetummy Ltd | Information & communication | 2019 |
| Feline Fine Cat Hotel Limited | Agriculture & fishing | 2020 |
| Fenmich Limited | Professional & scientific | 2025 |
| Fenwick's Storage and Transport Limited | Administrative & support | 1947 |
| Fern Studios Ltd | Manufacturing | 2009 |
| Ferrar Consulting Ltd | Professional & scientific | 2011 |
| Ferris Painting Contractors Limited | Extraterritorial | 1999 |
| Fertility Nutrition Centre Ltd | Administrative & support | 2020 |
| Festina Drinks Ltd | Wholesale & retail | 2014 |
| Fetolegal Ltd | Health & social care | 2025 |
| Fflow Limited | Information & communication | 2018 |
| Fhbbeauty Limited | Other services | 2022 |
| Fidan 2023 Ltd | Hospitality | 2023 |
| Field and Rural Life Ltd | Information & communication | 2010 |
| Field House Property Maintenance Ltd | Real estate | 2024 |
| Fieldgate Investments Ltd | Professional & scientific | 2019 |
| Fifi Hair & Beauty Studio Ltd | Health & social care | 2011 |
| Fifty 50 Estates Limited | Real estate | 2021 |
| Filler Properties Ltd | Real estate | 2023 |
| Finblade Limited | Information & communication | 2007 |
| Fine Smiles Limited | Health & social care | 2023 |
| Fine Thinking Limited | Professional & scientific | 2009 |
| Fire & Security Hampshire Limited | Administrative & support | 2020 |
| Fire Group Perms Ltd | Administrative & support | 2020 |
| Firecare, Security and Electrical Ltd | Administrative & support | 2010 |
| Firecrest Apartments Limited | Real estate | 2014 |
| Fireoco Limited | Financial services | 2007 |
| Firesafe Solutions (UK) Limited | Professional & scientific | 2004 |
| First Call Factors Limited | Extraterritorial | 2003 |
| First Call Heating Limited | Construction | 2004 |
| First Choice Drives and Patios Ltd | Construction | 2022 |
| First Contact Fire & Security Limited | Other services | 2014 |
| First Evolution Ltd | Health & social care | 2016 |
| First on the Throttle Media Ltd | Information & communication | 2021 |
| First Wave Equestrian Limited | Agriculture & fishing | 2021 |