| Ezpc Limited | Manufacturing | 2003 |
| Ezraella Limited | Health & social care | 2014 |
| F & M (Investment Holdings) Limited | Extraterritorial | 2015 |
| F&C Homework's Limited | Construction | 2021 |
| F&G Fixing Ltd | Construction | 2012 |
| F&H Estates Ltd | Real estate | 2021 |
| F17 PMS Limited | Professional & scientific | 2022 |
| F4B Commercial Limited | Financial services | 2012 |
| F4B Holdings Limited | Professional & scientific | 2012 |
| FAB Catering Ltd | Hospitality | 2010 |
| Facade Concepts Ltd | Construction | 2006 |
| Fadden & Co. Limited | Professional & scientific | 2001 |
| Fair Acres (Bromley) RTM Company Limited | Households | 2005 |
| Fair Deal HR Consultancy Ltd | Professional & scientific | 2007 |
| Fairoak Properties (Kent) Limited | Construction | 1979 |
| Fairview Veterinary Retail Limited | Professional & scientific | 2021 |
| Fairview Veterinary Trading Limited | Professional & scientific | 2021 |
| Fairweather Pool Services Limited | Construction | 2016 |
| Faith Broadcasting Network Limited | Information & communication | 2012 |
| Falcon Spartak School of Gymnastics | Arts & recreation | 1986 |
| Falconhurst Apartments Co. Ltd. | Households | 2017 |
| Fanacca Limited | Professional & scientific | 2010 |
| Fancies Limited | Hospitality | 2021 |
| Fantasia Ceiling Fans Limited | Wholesale & retail | 1996 |
| Fantasia Distribution Limited | Wholesale & retail | 1992 |
| Fantasytec UK Ltd | Wholesale & retail | 2022 |
| Fantozzi Pizzeria Limited | Hospitality | 2002 |
| Faraz Alam Ltd | Wholesale & retail | 2024 |
| Fargo Dining Club Ltd | Administrative & support | 2019 |
| Fari Diggers Limited | Administrative & support | 2025 |
| Faris Medical Ltd | Real estate | 2011 |
| Farmer Foods Ltd | Wholesale & retail | 2010 |
| Farnborough Fencing Ltd | Administrative & support | 2017 |
| Farnborough Green Property (Management) Limited | Households | 1965 |
| Farnborough Hill Allotments Ltd | Arts & recreation | 2019 |
| Farnborough Landscaping Ltd | Administrative & support | 2020 |
| Farnborough Scaffolding Ltd | Extraterritorial | 2022 |
| Farview International Limited | Administrative & support | 2014 |
| Fashion Industry Insiders Limited | Arts & recreation | 2017 |
| Fasolak Limited | Administrative & support | 2019 |
| Fastmoor Limited | Real estate | 1977 |
| Fastpassdriveuk Ltd | Education | 2025 |
| Fateh Private Limited | Wholesale & retail | 2025 |
| Fatnee Ltd | Extraterritorial | 2018 |
| Faverone Limited | Health & social care | 2009 |
| Favour Divine Properties UK Ltd | Real estate | 2018 |
| Favour Divine UK Limited | Health & social care | 2013 |
| Favpaul Consult Ltd | Information & communication | 2018 |
| Faye's Dolcetti Ltd | Hospitality | 2025 |
| Fdfs Fire Limited | Construction | 2023 |
| Feast Animation Limited | Information & communication | 2026 |
| Federation of International Kabaddi Federations & Associations | Arts & recreation | 2025 |
| FEE Services Ltd | Health & social care | 2021 |
| Feedle Limited | Information & communication | 2026 |
| Feedme Design Ltd | Professional & scientific | 2012 |
| Feel Good Investments Limited | Financial services | 2018 |
| Feigl Consulting Ltd | Professional & scientific | 2016 |
| Fenchurch Consultants Limited | Administrative & support | 2019 |
| Fennessey Gardener Films Limited | Health & social care | 2014 |
| Fern Hill Montessori Ltd | Education | 2013 |
| Fetorotti Corporation Limited | Professional & scientific | 2012 |
| Fholar African Food Limited | Hospitality | 2022 |
| Fidelity Integrated Systems Limited | Administrative & support | 2001 |
| Fidelity Property Solutions Limited | Real estate | 2026 |
| Fides Services Limited | Wholesale & retail | 2025 |
| Field Close Management Limited | Households | 1960 |
| Fieldmans Access Floors Limited | Construction | 1999 |
| Fiesta Design Limited | Construction | 2012 |
| Fiesta Loca Ltd | Hospitality | 2024 |
| Fife Stem Ltd | Professional & scientific | 2025 |
| Fifimona Ltd | Construction | 2015 |
| FIG & Fennel Produce Ltd | Wholesale & retail | 2006 |
| Filclean AF Ltd | Administrative & support | 2020 |
| Film Factory UK Ltd | Information & communication | 2020 |
| Filpro-Kamigawa Ltd | Manufacturing | 2013 |
| Finanalysis Limited | Financial services | 2012 |
| Finance Freedom Ltd | Professional & scientific | 2024 |
| Finch Estate Management Ltd | Households | 2019 |
| Findata Analytics Ltd | Information & communication | 2017 |
| Findjobs Limited | Education | 2020 |
| Fine Fynch Ltd | Other services | 2016 |
| Fine Margins Ltd | Professional & scientific | 2014 |
| Finergi UK Limited | Information & communication | 2025 |
| Finetime International Ltd | Education | 2025 |
| Finnkey Ltd | Real estate | 2023 |
| Finvolution Corporation Limited | Professional & scientific | 2009 |
| Fire Coatings (UK) Limited | Construction | 2016 |
| Fire Rated Systems Ltd | Manufacturing | 2018 |
| Firefly Marketing Limited | Professional & scientific | 2009 |
| Firery Dough Wood Fired Pizza Limited | Hospitality | 2021 |
| Firestar Consulting Limited | Information & communication | 2019 |
| Firetec Contracts Ltd | Construction | 2008 |
| Firmitas Global Ltd | Manufacturing | 2026 |
| Firmsoft Ltd. | Information & communication | 2015 |
| First Class Podcast Ltd | Information & communication | 2025 |
| First Class Print Finish Group Limited | Manufacturing | 2022 |
| First Class Print Finish Packaging Limited | Manufacturing | 2021 |
| First Class Screen Print Ltd | Manufacturing | 2026 |
| First Stone Property Ltd | Construction | 2022 |
| Fischer Associates Ltd | Professional & scientific | 2013 |