| Farmineer | Professional & scientific | 2025 |
| Farmoris | Professional & scientific | 2026 |
| Fase Group Ltd | Professional & scientific | 2021 |
| Fase Hsqe Consultants Limited | Construction | 2018 |
| Fased Limited | Professional & scientific | 2007 |
| Fashion & the HAT Limited | Manufacturing | 2024 |
| Fasolku | Professional & scientific | 2025 |
| Fast Bandit Limited | Other services | 2021 |
| Fast Lane Competitions Ltd | Wholesale & retail | 2026 |
| Fatbird Live Lounge Ltd | Hospitality | 2017 |
| Faulkner Motorsport Ltd | Wholesale & retail | 2025 |
| Faye Rodger Physiotherapy Ltd | Other services | 2023 |
| Fayle Plant Hire Limited | Administrative & support | 2002 |
| FAZ7TECH Ltd | Wholesale & retail | 2025 |
| Fazaa Holdings Limited | Real estate | 2024 |
| Fazackerley Flooring Contractors Limited | Wholesale & retail | 2018 |
| Faze Electrical Contracting Ltd | Construction | 2018 |
| FBW Engineering Group Limited | Financial services | 2025 |
| FBW Engineering UK Limited | Professional & scientific | 2015 |
| FC Cleaning Company Ltd | Administrative & support | 2026 |
| FD Ceilings & Partitions Ltd | Construction | 2016 |
| FD Systems Limited | Information & communication | 2013 |
| Feed UM RAW Ltd | Manufacturing | 2022 |
| Feel Good North West Ltd | Real estate | 2006 |
| Feel Purpose Fitness CIC | Education | 2026 |
| Feely Electrical Ltd | Construction | 2026 |
| Femalefirst Limited | Extraterritorial | 2012 |
| Fenton's PUB Co Ltd | Hospitality | 2021 |
| FEP Haulage Limited | Transport & logistics | 2015 |
| Feral Outdoor Company Ltd | Agriculture & fishing | 2025 |
| Fernlandscapes&Construction Ltd | Construction | 2025 |
| Fernleigh Care Limited | Health & social care | 2024 |
| Ferpat Ltd | Wholesale & retail | 2014 |
| Ferrison Ltd | Information & communication | 2026 |
| Fest Assured Ltd | Wholesale & retail | 2025 |
| FF Boutique Ltd | Wholesale & retail | 2023 |
| Ffms Consulting Ltd | Professional & scientific | 2023 |
| FFT Property Limited | Real estate | 2025 |
| FGT Golf Holidays Limited | Administrative & support | 2018 |
| Fhnmm Limited | Wholesale & retail | 2021 |
| Fibre Optic NW Limited | Information & communication | 2024 |
| Fibre Optic Splicing & Testing Ltd | Information & communication | 2008 |
| Fibrelight Communications Ltd | Information & communication | 2012 |
| Fieldhouse Properties Group Limited | Real estate | 2018 |
| FIF International Ltd | Professional & scientific | 2021 |
| Fifteen Chester Ltd | Hospitality | 2011 |
| Fifteen Pemberton Ltd | Hospitality | 2009 |
| Fifteen ST. Annes Ltd | Hospitality | 2009 |
| Fifteens @ the Oak Limited | Real estate | 2015 |
| Fifteens Group Ltd | Hospitality | 2006 |
| Fifteens of Standish Ltd | Hospitality | 2016 |
| Fight Division Ltd | Manufacturing | 2023 |
| Figurehead Homes Limited | Construction | 2010 |
| Filiimei Digital Ltd | Professional & scientific | 2026 |
| Fillencia Ltd | Wholesale & retail | 2026 |
| Fillip Advisory Services Limited | Professional & scientific | 2020 |
| Film Mill Productions Ltd | Information & communication | 2025 |
| Final Stretch Capital Limited | Professional & scientific | 2026 |
| Finaldraft Limited | Professional & scientific | 1989 |
| Financial 247 Corporate Solutions Ltd | Professional & scientific | 2024 |
| Financial Algorithms Limited | Information & communication | 2025 |
| Financial Experience Limited | Financial services | 2006 |
| Financial Intelligence Algorithms Limited | Information & communication | 2025 |
| Financial Intelligence Systems Limited | Information & communication | 2025 |
| Financial Intelligence Technologies Limited | Information & communication | 2025 |
| Financial Investment Management Limited | Professional & scientific | 2025 |
| Financial Markets Limited | Education | 2025 |
| Financial Markets Trading Limited | Financial services | 2025 |
| Financial Trading Algorithms Limited | Information & communication | 2025 |
| Financial Trading and Investment Management Limited | Professional & scientific | 2025 |
| Financial Trading Limited | Financial services | 2025 |
| Financial Trading Partners Limited | Financial services | 2025 |
| Financial Trading Platforms Limited | Information & communication | 2025 |
| Finch's Stone and Marble Limited | Construction | 2005 |
| Fine Line Supplies Ltd | Wholesale & retail | 2020 |
| Finesse Smart Repairs Limited | Wholesale & retail | 2026 |
| Finglobe Solutions Ltd | Financial services | 2024 |
| Finn Civils Limited | Construction | 2022 |
| Finor Properties Limited | Real estate | 2024 |
| Finwid Limited | Information & communication | 2026 |
| FIR Tree Fishery CIC | Education | 2011 |
| Fire Dough Bros Ltd | Hospitality | 2024 |
| Fire IT UP Limited | Arts & recreation | 2004 |
| Fire Safe Sprinkler Installations Limited | Construction | 2022 |
| Fireclass Manufacturing Limited | Manufacturing | 2003 |
| Fired Scent Limited | Manufacturing | 2023 |
| Fired WOK Ltd | Hospitality | 2025 |
| Firmo Limited | Professional & scientific | 2022 |
| First Choice Driving School Limited | Education | 2009 |
| First Choice Trailers Limited | Water & waste | 2013 |
| First Edition (NW) Limited | Wholesale & retail | 2012 |
| First Global Consulting Ltd | Professional & scientific | 2024 |
| First Recovering Limited | Transport & logistics | 2016 |
| First Response Recovery Services Ltd | Transport & logistics | 2025 |
| First Words Hub Ltd | Health & social care | 2025 |
| First-Class Construction Limited | Construction | 2026 |
| Firstcare 24 Ltd | Administrative & support | 2020 |
| Firstpastthepost Limited | Arts & recreation | 2009 |
| Firstplus Group Ltd | Transport & logistics | 2024 |
| Firth Law Limited | Professional & scientific | 2016 |