| Fcjc Ltd | Administrative & support | 2017 |
| Feel Good Friday Ltd | Information & communication | 2024 |
| Feenan Logistics Limited | Transport & logistics | 2025 |
| Feline Lodge Limited | Administrative & support | 2014 |
| Fenix Wellness Club Limited | Health & social care | 2025 |
| Feral Wolf Productions Ltd | Information & communication | 2017 |
| Fern IT Ltd | Information & communication | 2013 |
| Fernard 555 Ltd | Transport & logistics | 2016 |
| Fetch Films Ltd | Information & communication | 2018 |
| FFE Consulting Ltd | Manufacturing | 2005 |
| Fibre Optics Training Limited | Administrative & support | 2026 |
| FIC Consulting Services Limited | Professional & scientific | 2023 |
| Fidelity Life UK Ltd | Financial services | 2025 |
| Field of Screams Ltd | Arts & recreation | 2024 |
| Fieldview Holdings Ltd | Financial services | 2025 |
| FIFTY600 Ltd | Information & communication | 2023 |
| FIFTY911 Ltd | Transport & logistics | 2018 |
| Figaro's Barber(Crew) Ltd | Other services | 2019 |
| Filippe Service Limited | Construction | 2026 |
| Fillansfilms Ltd | Information & communication | 2022 |
| Filmitt & Floggitt Ltd | Information & communication | 2017 |
| Filtr Treatment Rooms Limited | Other services | 2026 |
| FIN Estates Ltd | Real estate | 2024 |
| Financial Business Management Ltd | Professional & scientific | 2009 |
| Financial Expert Corporation Limited | Professional & scientific | 2012 |
| Financial Expert Independent Ltd | Financial services | 2011 |
| Financial Expert Partnership Ltd | Financial services | 2012 |
| Financing Business Limited | Real estate | 2014 |
| Fine Lingerie Limited | Wholesale & retail | 2011 |
| Finefoodies Ltd | Real estate | 2016 |
| Finer Equine Limited | Manufacturing | 2019 |
| Finest Coffee and Tea Limited | Wholesale & retail | 2014 |
| Finite Global Capital Limited | Administrative & support | 2025 |
| Finnesse Vending Limited | Wholesale & retail | 2009 |
| Fiorano Developments Limited | Construction | 2025 |
| Fiorano Property Limited | Real estate | 2025 |
| Fiore Landscaping Limited | Administrative & support | 2021 |
| Firetek North West Ltd | Other services | 2020 |
| First Choice Select Limited | Administrative & support | 1995 |
| Firstavia Limited | Professional & scientific | 2009 |
| Fish Advisor Ltd | Construction | 2025 |
| Fish Bulb Head Ltd | Information & communication | 2010 |
| Fish Chips Ltd | Hospitality | 2024 |
| Fish in Crewe Engineering Limited | Extraterritorial | 2009 |
| Fit Space Chelsea Ltd | Arts & recreation | 2017 |
| Fitch & Carlson Ltd | Professional & scientific | 2025 |
| Fitness Equipment Services Limited | Manufacturing | 2009 |
| Fitpro Training Academy Ltd | Education | 2018 |
| Fits Official Consultancy Ltd | Professional & scientific | 2026 |
| Fitzpatrick OLE Services Limited | Construction | 2018 |
| Five Oaks Homes Limited | Construction | 2016 |
| FKB Electrical Limited | Construction | 1993 |
| FL Components Ltd | Wholesale & retail | 2025 |
| Flames Crewe Ltd | Hospitality | 2023 |
| Flamingo Falls Ltd | Real estate | 2025 |
| Flamme Rouge Limited | Professional & scientific | 2017 |
| Flat Dog Management Ltd | Information & communication | 2006 |
| Fleet Minimart Ltd | Wholesale & retail | 2025 |
| Fleet of Foot Logistics Ltd | Other services | 2018 |
| Fletcher Ralphs Ltd | Real estate | 2024 |
| Fletcher Ventures Ltd | Real estate | 2026 |
| Fleurtek Ltd | Professional & scientific | 2026 |
| Flexatech Limited | Extraterritorial | 2015 |
| Flipflow Security Limited | Information & communication | 2026 |
| Flippin Dubz Ltd | Manufacturing | 2020 |
| Flo-Smart Beverage Solutions (UK) Limited | Wholesale & retail | 2023 |
| Floozy Limited | Wholesale & retail | 1990 |
| Florin Eurotrans Limited | Transport & logistics | 2018 |
| FLORINDRIVER123 Ltd | Transport & logistics | 2022 |
| Floryn Packaging Limited | Wholesale & retail | 2018 |
| Flowers on the Cobbles Sandbach Limited | Wholesale & retail | 2024 |
| FLP1 Limited Partnership | | 2007 |
| Flyhighsociety Limited | Administrative & support | 2026 |
| Flynn Freight Limited | Transport & logistics | 2026 |
| Focus EV Limited | Other services | 2023 |
| FOL Hollow Nurseries Astbury Ltd | Wholesale & retail | 2024 |
| Fomze Ltd | Hospitality | 2026 |
| Food for Thought Bakery Limited | Manufacturing | 2000 |
| Foqa Consultancy Limited | Professional & scientific | 2003 |
| Forceps Ltd | Construction | 2019 |
| Forever Angels UK Ltd | Education | 2005 |
| Forever Thirsty UK Limited | Other services | 2014 |
| Form Nutrition Limited | Manufacturing | 2002 |
| Fortis Business Support Ltd | Administrative & support | 2025 |
| Forty Winks Ltd | Hospitality | 2022 |
| Foster Construction (U.K.) Limited | Construction | 1984 |
| Founders Fireside Ltd | Professional & scientific | 2025 |
| Fourth Wall Entertainment Limited | Information & communication | 2019 |
| Fowles Funeral Services Limited | Other services | 2010 |
| FOX and the Hounds Pet Services Ltd | Other services | 2024 |
| FOX Civils Ltd | Construction | 2016 |
| Fpbh Properties Ltd | Real estate | 2025 |
| Fractal Dimensions Ltd | Information & communication | 2019 |
| Frame Wellness App Ltd | Information & communication | 2026 |
| Frank Webb Minimart Ltd | Wholesale & retail | 2026 |
| Freda-Fortuna K9 Ltd | Administrative & support | 2016 |
| Freddy Foods Ltd | Wholesale & retail | 2020 |
| Freefly Services Ltd | Professional & scientific | 2015 |
| Freephone Services Limited | Information & communication | 2001 |
| Frentl Ltd | Information & communication | 2024 |