| Fessey Properties Limited | Real estate | 2017 |
| Festival Loaded Ltd | Hospitality | 2025 |
| Fetbox Ltd | Wholesale & retail | 2024 |
| Fever Dog Films Limited | Information & communication | 2010 |
| FFI Electrical Services Limited | Construction | 2021 |
| Fibrescore Limited | Wholesale & retail | 1993 |
| Fido Payroll Limited | Professional & scientific | 2017 |
| Fien Brown Ltd | Administrative & support | 2015 |
| Fifth Path Ltd | Information & communication | 2026 |
| Fihi Limited | Financial services | 2016 |
| Film & Media Management Limited | Administrative & support | 2011 |
| Financial & Legal Insurance Company Ltd | Financial services | 1995 |
| Financial Advice Network Ltd | Extraterritorial | 2005 |
| Financial Advice Website Ltd. | Extraterritorial | 2012 |
| Financial Gallery (Properties) Ltd | Real estate | 2024 |
| Financial Gallery Ltd | Real estate | 2022 |
| Financial K Limited | Information & communication | 2018 |
| Financial S & a Ltd | Professional & scientific | 2025 |
| Financial Services & Advice Limited | Professional & scientific | 2010 |
| Financial Services MCR Ltd | Professional & scientific | 2026 |
| Finch Accounting Solutions Limited | Professional & scientific | 2005 |
| Fine OWL Illustration Studio Ltd | Professional & scientific | 2026 |
| Fingerpost Consulting Ltd | Professional & scientific | 2015 |
| Finny Holdings Ltd | Professional & scientific | 2024 |
| Finta Limited | Administrative & support | 2018 |
| Fiona Miller Consultancy Ltd | Professional & scientific | 2017 |
| Fircroft Flat Management Limited | Households | 1978 |
| Fire Certification UK Limited | Extraterritorial | 2019 |
| Fire Holdings Ltd | Financial services | 2021 |
| Firenze Moda Fashion Ltd | Wholesale & retail | 2026 |
| Firs (Wilmslow) Maintenance Company Limited(The) | Households | 1978 |
| First Class City Suites Limited | Other services | 2024 |
| First Class Real Estate Ltd | Real estate | 2021 |
| First Tyres Plus Limited | Manufacturing | 2004 |
| Firststreet Essys Ltd | Hospitality | 2024 |
| Fishwick & Regan Property Development Ltd | Real estate | 2023 |
| Fishwick Plumbing & Heating Ltd | Construction | 2025 |
| Fitnology Limited | Information & communication | 2015 |
| Fitsupplies.Co.Uk Limited | Wholesale & retail | 2020 |
| Fitzwilliam Capital Partners Limited | Construction | 2023 |
| Five Oaks Construction Ltd | Construction | 2023 |
| Five Twenty Marketing Limited | Professional & scientific | 2024 |
| Fizah Grocers (HG) Limited | Wholesale & retail | 2016 |
| Fizah Grocers Limited | Hospitality | 2011 |
| Fizzy Kitten Ltd | Other services | 2025 |
| Flavorlytics Ltd | Professional & scientific | 2025 |
| Fleming Care Ltd | Health & social care | 2014 |
| Fletcher-Smillie Investments NO 1 | Financial services | 2024 |
| Fleur DE Coin Limited | Wholesale & retail | 2024 |
| Flexi Leasing & Finance Ltd | Financial services | 2023 |
| Flexi Resin Limited | Construction | 2015 |
| Flexlocum Ltd | Health & social care | 2023 |
| Flintloch Retail Ltd | Wholesale & retail | 2024 |
| Flintloch Wealth Limited | Financial services | 2021 |
| Flood Response Services Limited | Water & waste | 2024 |
| Flowerful Ltd | Manufacturing | 2026 |
| Flowfix Plumbing Limited | Construction | 2025 |
| FLY OUT of the Box Coaching & Counselling Limited | Health & social care | 2021 |
| FLY Tuition Limited | Education | 2023 |
| Fmahmood Healthcare Ltd | Health & social care | 2022 |
| FMC Investments Ltd | Real estate | 2017 |
| Fmcg Projects Ltd | Professional & scientific | 2014 |
| Fmcg Properties Limited | Real estate | 2023 |
| FNC Consulting Limited | Professional & scientific | 2025 |
| FNZ Q-Hub Limited | Administrative & support | 2021 |
| Foam Guard Claims Management Ltd | Professional & scientific | 2024 |
| Focus Biostrat Limited | Professional & scientific | 2019 |
| FOI Services Ltd | Health & social care | 2015 |
| Folks Express Logistics Limited | Transport & logistics | 2025 |
| Food Projects Limited | Professional & scientific | 2019 |
| Foodlife Limited | Extraterritorial | 1999 |
| Football Art Tradings Limited | Wholesale & retail | 2015 |
| Football Safety Officers Association Limited | Professional & scientific | 2003 |
| Footsteps Next Generation Ltd | Health & social care | 2020 |
| Force 8 (EOT) Limited | Other services | 2021 |
| Force 8 (Upvc Conservatories) Limited | Manufacturing | 1990 |
| Force 8 Fabrication Limited | Construction | 1998 |
| Forensic & Medical Consultancy Limited | Professional & scientific | 2016 |
| Forester Osman Ltd | Transport & logistics | 2024 |
| Forever Nest Memorials Ltd | Wholesale & retail | 2025 |
| Forevercareuk Ltd | Health & social care | 2024 |
| Forge Digital Solutions Limited | Information & communication | 2020 |
| Forgeline Builders Limited | Construction | 2026 |
| Forme by Body Barre Boutique Limited | Education | 2025 |
| Fornax Advisory Limited | Information & communication | 2023 |
| Forrest Process Improvement Limited | Professional & scientific | 2018 |
| Forte Event Management Limited | Arts & recreation | 2018 |
| Forton Consulting Limited | Information & communication | 2024 |
| Forward Leasing Ltd | Wholesale & retail | 2017 |
| Fothergill Grange Management Company Limited | Households | 1983 |
| Foundry HQ Ltd | Information & communication | 2025 |
| Fountain Square Physio Ltd | Health & social care | 2022 |
| Four Canadian Lodges Ltd | Real estate | 2022 |
| Four MAN Group Ltd | Real estate | 2026 |
| Foxy's Properties Ltd | Real estate | 2024 |
| FPB Consultants Ltd | Administrative & support | 2010 |
| FPB Property Limited | Real estate | 2021 |
| Fractional Jigsaw Limited | Extraterritorial | 2025 |
| Frain & Grain Ltd | Professional & scientific | 2017 |
| Framaya Ltd | Health & social care | 2013 |