| FNZ Medical Ltd | Administrative & support | 2023 |
| Focus 66 UK Limited | Construction | 2019 |
| Focus Engineering Services Ltd | Professional & scientific | 2025 |
| Foden Enterprises Limited | Administrative & support | 2018 |
| Foden Estates Ltd. | Construction | 2000 |
| Foghorn Investments LLP | | 2019 |
| Foghorn Properties Ltd | Real estate | 2019 |
| Foilco Limited | Manufacturing | 1987 |
| Folajuli Limited | Administrative & support | 2026 |
| Folde Investments Limited | Real estate | 2007 |
| Folde Properties Limited | Real estate | 2006 |
| Folium Financial Limited | Professional & scientific | 2018 |
| Folliard Building Services Limited | Administrative & support | 2007 |
| Folliard Project Management Limited | Administrative & support | 2014 |
| Folliceuticals Ltd | Other services | 2019 |
| Follifix Ltd | Manufacturing | 2019 |
| Fond Buzz Ltd | Information & communication | 2014 |
| Fongha Digital Ltd | Professional & scientific | 2022 |
| Fontao Ltd | Administrative & support | 2024 |
| Food Engineers 24/7 Ltd | Professional & scientific | 2023 |
| Food Experts Ltd | Administrative & support | 2008 |
| Food Hygiene Services (NW) Ltd | Professional & scientific | 2018 |
| Food Methodology Ltd | Hospitality | 2023 |
| Food Support Ltd | Administrative & support | 2023 |
| Food Zest Limited | Hospitality | 2014 |
| Foodflair Limited | Hospitality | 2018 |
| Football Leisure Services Limited | Information & communication | 2008 |
| Football North West Limited | Arts & recreation | 2011 |
| Footcare Limited | Information & communication | 1990 |
| Footfall Podiatry Ltd | Health & social care | 2024 |
| Footprint Conservation Limited | Construction | 2003 |
| Footprints in the Forest - Forest School Ltd | Health & social care | 2019 |
| Footwear Concepts Limited | Wholesale & retail | 2019 |
| FOR Keepe Sake Ltd | Hospitality | 2025 |
| FOR Spine Limited | Health & social care | 2017 |
| Forcefour Marine Limited | Professional & scientific | 2018 |
| Ford Nixon Limited | Wholesale & retail | 2016 |
| Ford Nuclear Services Limited | Administrative & support | 2018 |
| Fordy Electrical Limited | Administrative & support | 2015 |
| Foredge Advisory Limited | Professional & scientific | 2019 |
| Forensic Science Bureau Limited | Professional & scientific | 2013 |
| Forest Explorers Ltd | Arts & recreation | 2014 |
| Foretwo Group Limited | Professional & scientific | 2017 |
| Forever Trade Ltd | Real estate | 2021 |
| Forevermore Care Group Ltd | Health & social care | 2018 |
| Forevermore Holdings Ltd | Financial services | 2024 |
| Forge Optical Ltd | Health & social care | 2022 |
| Forge Rail Ltd | Professional & scientific | 2025 |
| Forged Physiques Limited | Arts & recreation | 2023 |
| Forint Limited | Information & communication | 2019 |
| Form and Fitness Limited | Other services | 2014 |
| Form Ideas Studio Limited | Professional & scientific | 2024 |
| Form Real Estate Ltd | Administrative & support | 2023 |
| Formby Fitness Limited | Arts & recreation | 2016 |
| Forrest Governance Ltd | Education | 2013 |
| Forrest Recruitment EOT Limited | Administrative & support | 2024 |
| Forrest Recruitment Holdings Limited | Financial services | 2023 |
| Forsain MED Ltd | Professional & scientific | 2021 |
| Forster Design Services Ltd | Professional & scientific | 2017 |
| Forte Enterprise Ltd | Wholesale & retail | 2026 |
| Forth Floor Ltd | Other services | 2019 |
| Fortissimo Software Limited | Information & communication | 1997 |
| Fortitude Rail Limited | Administrative & support | 2024 |
| Fortitudo Ltd | Administrative & support | 2026 |
| Fortunatus Housing Solutions | Hospitality | 2011 |
| Forty Seven Fashion Ltd | Wholesale & retail | 2025 |
| Forvanda Limited | Administrative & support | 2020 |
| Forward Focused Leadership Limited | Professional & scientific | 2018 |
| Forward IT Consulting Ltd | Information & communication | 2025 |
| Forwood Joinery Limited | Construction | 1999 |
| Foster Building & Energy Services Ltd | Construction | 2013 |
| Four Oaks Systems Ltd | Administrative & support | 2014 |
| Four Seas Engineering Limited | Construction | 2021 |
| Four Seasons Florist Hindley Ltd | Wholesale & retail | 2025 |
| Four Utilities Water Ltd | Professional & scientific | 2023 |
| Fourbears Consultancy Ltd | Information & communication | 2019 |
| Fourladcats (UK) Ltd | Wholesale & retail | 2026 |
| Fourmat Ltd | Wholesale & retail | 2026 |
| Fourteen Eleven Limited | Professional & scientific | 2015 |
| FOX Couriers Limited | Transport & logistics | 2021 |
| FOX Estate Management Ltd | Real estate | 2024 |
| FOX Global Assets Ltd | Financial services | 2024 |
| FOX Global Investments Ltd | Financial services | 2024 |
| FOX Group Global Ltd | Financial services | 2018 |
| FOX Group International Ltd | Wholesale & retail | 2016 |
| FOX Group Investments Ltd | Financial services | 2022 |
| FOX Group Trading Ltd | Wholesale & retail | 2020 |
| FOX Orchard Property Ltd | Real estate | 2021 |
| FOX Pharma Limited | Wholesale & retail | 2018 |
| FOX Raven Ltd | Administrative & support | 2026 |
| FOX Risk Solutions Ltd | Financial services | 2022 |
| Fox's Group Limited | Financial services | 2018 |
| Foxglove Properties Limited | Real estate | 2024 |
| Foxhart Limited | Real estate | 2026 |
| Foxtrot One Limited | Professional & scientific | 2018 |
| Foxy Property Warrington Ltd | Real estate | 2025 |
| Foxy Yoga Limited | Arts & recreation | 2019 |
| Foxyfindsx Ltd | Wholesale & retail | 2026 |
| Foxysav Limited | Wholesale & retail | 2023 |
| FP Mailing Lancashire & Cheshire Limited | Other services | 2014 |