| F Restaurants Limited | Hospitality | 2022 |
| F&M Bloodstock Limited | Agriculture & fishing | 2015 |
| F&M Property Maintenance Limited | Construction | 2026 |
| F&P Utilities Ltd | Construction | 2020 |
| F&S Restaurants Limited | Hospitality | 2023 |
| F.F. Services Limited | Professional & scientific | 2002 |
| F.P. Investment Company Ltd. | Construction | 1962 |
| F.S. Limited | Arts & recreation | 1966 |
| FA Locum Ltd | Health & social care | 2019 |
| Faal Safeguarding Limited | Education | 2018 |
| FAB ERA Limited | Extraterritorial | 2022 |
| FAB4 Limited | Hospitality | 2026 |
| Fabbri Limited | Wholesale & retail | 2021 |
| Fabled Waypoint Cheltenham Ltd | Hospitality | 2021 |
| Fabr Consultancy Services Ltd | Professional & scientific | 2024 |
| Facemouthskin Limited | Real estate | 2015 |
| Facet & Fable Ltd | Wholesale & retail | 2018 |
| FACILIT8 (London) Limited | Administrative & support | 2026 |
| Facilities 1 Limited | Construction | 2015 |
| Factor 3 Communications Limited | Professional & scientific | 1996 |
| Factor 3 Holdings Limited | Financial services | 2015 |
| Factory Carpets Direct.Com Limited | Wholesale & retail | 2019 |
| Factory Labs Ltd | Information & communication | 2023 |
| Factory Pattern Ltd | Professional & scientific | 2008 |
| Fade 1 Zone Ltd | Other services | 2024 |
| Fade Projects Ltd | Hospitality | 2023 |
| Fade Zone Barbers HS Ltd | Other services | 2025 |
| Faderani Optical Ltd | Health & social care | 2022 |
| Fairbank Design Limited | Professional & scientific | 2023 |
| Fairfield House Healthcare Limited | Health & social care | 2005 |
| Fairfield Reward Ltd | Professional & scientific | 2026 |
| Fairmount Road Management Company Limited | Households | 2007 |
| Fairquarter Limited | Financial services | 2015 |
| Fairspear Limited | Professional & scientific | 2018 |
| Fairtrade Consultancy Limited | Extraterritorial | 2010 |
| Fairtrade Travel Limited | Professional & scientific | 2007 |
| Fairview Financial Ltd | Financial services | 2017 |
| Fairy JOB Mother Limited | Education | 2020 |
| Falcon-Systems Ltd | Information & communication | 2026 |
| Falfield Securities Ltd | Construction | 2018 |
| Famalama Limited | Financial services | 2023 |
| Famco Estates Limited | Construction | 2012 |
| Families Reunited Limited | Other services | 2025 |
| Family Hub Limited | Health & social care | 2022 |
| Family Residential Holdings Ltd | Real estate | 2024 |
| Famous 5 Property Group Ltd | Real estate | 2024 |
| Fanny House Farm Bess Limited | Energy | 2022 |
| FAR & Wide Trade Limited | Administrative & support | 2003 |
| Farecare Gloucestershire Limited | Health & social care | 2015 |
| Fareestates Ltd | Real estate | 2023 |
| Farmington Estates Limited | Real estate | 1991 |
| Farmington Masonry LLP | | 2014 |
| Farmington Masonry Supplies Limited | Construction | 2007 |
| Farmington Natural Stone Limited | Mining & quarrying | 1995 |
| Farmington Services Limited | Mining & quarrying | 2008 |
| Farmington Stone LLP | | 2022 |
| Farmoor Properties Limited | Real estate | 1999 |
| Farnley Estate (Riding Mill) Limited | Arts & recreation | 2021 |
| Faro Protector Limited | Professional & scientific | 2015 |
| Farquhar's Vocabulary Flash Cards Ltd | Information & communication | 2015 |
| Farrier Rose Holdings Limited | Financial services | 2021 |
| Farrier Rose Wealth Management Ltd | Professional & scientific | 2011 |
| Farsley Dental Practice Limited | Health & social care | 2007 |
| Fashion I.T. Web Services Ltd. | Information & communication | 2012 |
| Fast Interact Services Ltd | Manufacturing | 2017 |
| Fastvision Limited | Information & communication | 2001 |
| FAT Anne's Ltd. | Manufacturing | 2016 |
| FAT MSD Limited | Hospitality | 2023 |
| FAT Potato Limited | Information & communication | 2016 |
| FAT Wizard Consulting Limited | Information & communication | 2007 |
| Fatti and Moni Ltd | Real estate | 2022 |
| Faucon Clothing Ltd | Wholesale & retail | 2026 |
| Fawley Court Estates Limited | Households | 2010 |
| FC Lakeside | Arts & recreation | 2017 |
| FC Refrigeration Services Ltd | Other services | 2024 |
| FDB Complete Building Solutions Ltd | Construction | 2025 |
| Fdsc Limited | Health & social care | 2013 |
| FDV Locum Ltd | Wholesale & retail | 2026 |
| FE 26 Fabrications Ltd | Manufacturing | 2023 |
| Fearless and Focused Limited | Professional & scientific | 2016 |
| Fearphotography Ltd | Professional & scientific | 2020 |
| Feast Asia Ltd | Hospitality | 2019 |
| Feather Pensions 2 Limited | Information & communication | 2025 |
| Feathers N Flavours Ltd | Hospitality | 2023 |
| Feature Spirit Limited | Wholesale & retail | 2023 |
| Feckenham Green NG Limited | Financial services | 2022 |
| Feckenham Green NG Midco Limited | Financial services | 2025 |
| Feedback Driven Ltd | Professional & scientific | 2024 |
| Feel Good Property Hub Ltd | Real estate | 2026 |
| Felix Lets Limited | Real estate | 2024 |
| Fellows Media Limited | Information & communication | 1999 |
| Felou Investments | Financial services | 2018 |
| Felt SO Good Ltd | Wholesale & retail | 2012 |
| Femme Open UK Ltd | Arts & recreation | 2025 |
| FEN Ditton Solar and Battery Storage Limited | Energy | 2023 |
| Fendaisy Ltd | Agriculture & fishing | 2020 |
| Fenia Limited | Real estate | 2021 |
| Fenton Dunme Limited | Information & communication | 2018 |
| Fenton Energy Limited | Professional & scientific | 2015 |
| Feoposters Ltd | Wholesale & retail | 2022 |