| Falkingham & Taylor (Vending) Limited | Manufacturing | 1964 |
| Famaurna Ltd | Manufacturing | 2025 |
| Family Feast (Hull) Limited | Hospitality | 2024 |
| FAN Fitness Ltd | Arts & recreation | 2023 |
| Fana Valeting Limited | Wholesale & retail | 2019 |
| Fancies.Ai Ltd | Information & communication | 2026 |
| Fanclean Solution Ltd | Administrative & support | 2025 |
| Fancylooks UK Limited | Wholesale & retail | 2017 |
| Fanlocal Limited | Real estate | 2021 |
| Fantastic Faces Limited | Professional & scientific | 2020 |
| Fanthorpe Holdings Limited | Wholesale & retail | 1951 |
| Fanthorpes Custom Install Limited | Extraterritorial | 2007 |
| FAR Vision Limited | Wholesale & retail | 2025 |
| Faraimo Limited | Real estate | 2022 |
| Farhat Rauf Limited | Health & social care | 2016 |
| Faris Trends Limited | Wholesale & retail | 2025 |
| Farlane Farming Ltd | Agriculture & fishing | 2024 |
| Farmak Pharmaceuticals UK Ltd | Wholesale & retail | 2024 |
| Farmer Equine Interactions CIC | Health & social care | 2025 |
| Farmhouse Furniture Ltd | Manufacturing | 2012 |
| Farndale Engineering Limited | Professional & scientific | 2022 |
| Farnill Consulting Ltd | Professional & scientific | 2018 |
| Farrow & Johnson Construction Ltd | Construction | 2025 |
| Faru Expedition Vehicles Ltd | Manufacturing | 2025 |
| Farvale Ltd | Information & communication | 2026 |
| FAS Ipswich Limited | Extraterritorial | 1977 |
| Fascinating Finishes Limited | Manufacturing | 1997 |
| Fasportsldn Ltd | Arts & recreation | 2022 |
| Fast & Safe Transport Limited | Transport & logistics | 2013 |
| Fast FIX Phones Ltd | Wholesale & retail | 2018 |
| Fast Food and Import Export Limited | Wholesale & retail | 2019 |
| Fast Track (Hull) Limited | Arts & recreation | 2004 |
| Fastlane Automotive Ltd | Wholesale & retail | 2022 |
| Fastlane Forwarding Services Limited | Transport & logistics | 2022 |
| Fastnet Fish Limited | Agriculture & fishing | 1987 |
| Fastnet Highlands Limited | Agriculture & fishing | 1986 |
| Fastnet Holdings Limited | Agriculture & fishing | 1980 |
| Fastway Builders Limited | Professional & scientific | 1995 |
| Fastwayfood Limited | Hospitality | 2025 |
| Fathom Maritime Limited | Professional & scientific | 2022 |
| Fathom Safety Limited | Professional & scientific | 2022 |
| Fawcett's of Burstwick Limited | Manufacturing | 2012 |
| Fawley Judge & Easton Limited | Professional & scientific | 2020 |
| FC 2014 Limited | Real estate | 2025 |
| FC Food Limited | Hospitality | 2020 |
| Fcar Motors Limited | Wholesale & retail | 2025 |
| FCB Travel Ltd | Administrative & support | 2025 |
| Fciba Film Productions Limited | Information & communication | 2021 |
| Fctb Ltd | Other services | 2023 |
| FDDTA2 Ltd | Other services | 2018 |
| FDL Food Ltd | Hospitality | 2019 |
| Fdttt Ltd | Arts & recreation | 2025 |
| Feast Marine Consultancy Limited | Administrative & support | 2025 |
| Feast N Flow Ltd | Hospitality | 2026 |
| Feather and Stones Limited | Agriculture & fishing | 2025 |
| Fecund Care Providers Ltd | Health & social care | 2021 |
| Feizhak Group of Companies Ltd | Wholesale & retail | 2025 |
| Femfun Healthcare Limited | Health & social care | 2024 |
| Fencing Yorkshire Ltd | Construction | 2025 |
| Fenifire Limited | Real estate | 2025 |
| Fenman Limited | Information & communication | 1987 |
| Fenton Consultancy Services Limited | Professional & scientific | 2013 |
| Feonic Limited | Manufacturing | 1999 |
| Feonic Technology Limited | Manufacturing | 1994 |
| Feonic Vibration Technology Limited | Manufacturing | 2019 |
| Fern Shopfitters Ltd | Construction | 2010 |
| Ferndale Group Limited | Transport & logistics | 2023 |
| Fernlandscapes Ltd | Construction | 2025 |
| Ferriby Aggregates Limited | Administrative & support | 2023 |
| Ferriby Recycling Limited | Manufacturing | 2017 |
| Ferriby Road Ltd | Real estate | 2025 |
| Ferriby Screening Limited | Administrative & support | 2023 |
| Ferry Three Fields Limited | Agriculture & fishing | 2023 |
| Ferryman Close Management Company Limited | Households | 2019 |
| Fesk Group Ltd | Manufacturing | 2024 |
| Fethon Holdings Limited | Real estate | 2021 |
| Fettled Limited | Manufacturing | 2020 |
| Fewings Property Ltd | Real estate | 2019 |
| FF Groves Ltd | Transport & logistics | 2024 |
| Ffpub Limited | Hospitality | 2024 |
| FFS Events Management Ltd | Hospitality | 2024 |
| FH Power Cleaner Ltd | Administrative & support | 2018 |
| Fibreon Ltd | Construction | 2022 |
| Fidigroup Limited | Other services | 2023 |
| Fieldroot Rural Limited | Agriculture & fishing | 2025 |
| Fields of Anlaby Limited | Manufacturing | 2006 |
| Fiftyfourdegreesnorth Ltd | Wholesale & retail | 2016 |
| FIG Atelier Limited | Wholesale & retail | 2023 |
| Figo Restaurant and Bar Ltd | Hospitality | 2026 |
| Film Yorkshire Limited | Information & communication | 2023 |
| Filplastic (UK) Limited | Wholesale & retail | 1993 |
| Filstor (UK) Limited | Wholesale & retail | 2009 |
| Finalact Limited | | 1964 |
| Finally Barber Ltd | Other services | 2026 |
| Financial Freedom Trading Ltd | Information & communication | 2022 |
| Find Industries Ltd | Health & social care | 2025 |
| Finehouse Limited | Construction | 2003 |
| Finesse Digital (Hull) Ltd | Information & communication | 2020 |
| Finesse Finishes Ltd | Construction | 2018 |
| Finglands Green Limited | Agriculture & fishing | 2014 |