| Francos Pizza Ltd | Hospitality | 2025 |
| Franellis Ltd | Real estate | 2018 |
| Frank Property Investments Ltd | Real estate | 2022 |
| Frank Eshelby Butchers Ltd | Wholesale & retail | 2009 |
| Frank Harrison Brighouse Limited | Wholesale & retail | 2009 |
| Frank Wilson Holdings Limited | Professional & scientific | 2008 |
| Frank&Wolf Limited | Hospitality | 2021 |
| Frankby Road Limited | Real estate | 2023 |
| Frankie Loves Limited | Wholesale & retail | 2004 |
| Frankie Paws Dog Walking Ltd | Other services | 2020 |
| Frankie's Industrial Equipment Limited | Administrative & support | 2023 |
| Frankiescoffeeshop Ltd | Wholesale & retail | 2025 |
| Frankland Automation Ltd | Administrative & support | 2022 |
| Frankland Financial Management Ltd | Professional & scientific | 2025 |
| Frankland Holdings (Otley) Limited | Other services | 2020 |
| Franklin & Harrow Holding Ltd | Financial services | 2023 |
| Franklin Electrical Services Ltd | Administrative & support | 2020 |
| Franklin Holding Company Limited | Professional & scientific | 2008 |
| Franklin Kwame Nyame Enterprise Limited | Real estate | 2022 |
| Franklinsmiths Ltd | Hospitality | 2018 |
| Frankly Ventures Limited | Health & social care | 2022 |
| Franklyn & Webster Limited | Other services | 2008 |
| Franklyn Health Ltd | Professional & scientific | 2025 |
| Frankson & Butlin Properties Ltd | Real estate | 2021 |
| Frano Catering Ltd | Manufacturing | 2024 |
| Fransen Limited | Administrative & support | 2022 |
| Franzen & Sjoman Investments UK Limited | Real estate | 2017 |
| Franzy Jolicoeur Ltd | Professional & scientific | 2016 |
| Fraser and King Ltd | Wholesale & retail | 2026 |
| Fraser Webb Limited | Real estate | 2015 |
| Fratelli Polli Limited | Other services | 2018 |
| Frater Trailer Hire Limited | Administrative & support | 2010 |
| Fratila Transport Limited | Transport & logistics | 2022 |
| Fraze Logistics Ltd | Transport & logistics | 2025 |
| Fraznium Ltd | Real estate | 2011 |
| Freckle Creative Ltd | Professional & scientific | 2010 |
| Freckle Property Management Ltd | Arts & recreation | 2008 |
| Freckles on Frank Ltd | Professional & scientific | 2019 |
| Fred Pizza Ltd | Hospitality | 2023 |
| Freddie Horton Ltd | Information & communication | 2017 |
| Freddie Ladapo Coaching Ltd | Education | 2023 |
| Frederick Solicitors Ltd | Professional & scientific | 2019 |
| Fredrickson International Limited | Other services | 1992 |
| Free Eco Grants 4 U Ltd | Construction | 2023 |
| Free Protection Advice Ltd | Financial services | 2024 |
| Free Scrap Metal Leeds Ltd | Wholesale & retail | 2026 |
| Free Spirit Homes Limited | Extraterritorial | 2007 |
| Free Support Ltd | Other services | 2019 |
| FREE2UPUBLICATIONS Ltd | Information & communication | 2013 |
| Freebird Enterprise Ltd | Wholesale & retail | 2020 |
| Freebird Software Ltd | Information & communication | 2023 |
| Freecaddservices Ltd | Construction | 2021 |
| Freedom Care Clinics Manchester Ltd | Health & social care | 2023 |
| Freedom Clinics (Leeds) Limited | Health & social care | 2014 |
| Freedom Developments (WKD) Limited | Real estate | 2013 |
| Freedom Engineering Co Limited | Manufacturing | 1967 |
| Freedom Refreshments Limited | Professional & scientific | 2006 |
| Freedom Stays and Developments Ltd | Real estate | 2021 |
| Freedom Taxation Services Limited | Professional & scientific | 2020 |
| Freedom Team Ltd | Professional & scientific | 2025 |
| Freedom Through Sport Ltd | Wholesale & retail | 2023 |
| Freedom Van Conversions Ltd | Manufacturing | 2025 |
| Freehold Developments Limited | Real estate | 2026 |
| Freelance Decorating Contractors Ltd | Professional & scientific | 2011 |
| Freelance Engineering Ltd | Construction | 2023 |
| Freeleased Ltd | Information & communication | 2024 |
| Freeman Solutions Limited | Wholesale & retail | 2004 |
| Freeman SSC Limited | Education | 2020 |
| Freesia Care Ltd | Health & social care | 2019 |
| Freestone Interiors Ltd | Professional & scientific | 2021 |
| Freeua Limited | Manufacturing | 2024 |
| Freeway (North West) Ltd | Administrative & support | 2017 |
| Freeway Autosales Limited | Wholesale & retail | 2015 |
| Freeway Driving Ltd | Administrative & support | 2011 |
| Freight Force International (U.K.) Limited | Information & communication | 1989 |
| FREIGHT2GAMBIA Limited | Administrative & support | 2016 |
| Freightmate Couriers Limited | Transport & logistics | 2019 |
| Frequency Investments Limited | Real estate | 2005 |
| Frequency Portfolio Limited | Real estate | 2014 |
| Fresco Ceilings Ltd | Construction | 2007 |
| Fresco Hardwood Flooring Limited | Construction | 2006 |
| Fresco Solar Shading LLP | | 2008 |
| Frescrete (Holdings) Limited | Financial services | 2026 |
| Frescrete (Hornsea) Limited | Construction | 2022 |
| Frescrete Limited | Construction | 2013 |
| Fresh Aire Ltd | Manufacturing | 2022 |
| Fresh Bins (Leeds) Ltd | Administrative & support | 2016 |
| Fresh Brew Digital Limited | Information & communication | 2018 |
| Fresh Clean Ltd. | Administrative & support | 2016 |
| Fresh CUT Creative Limited | Information & communication | 2011 |
| Fresh Electrics Ltd | Construction | 2021 |
| Fresh Face Leeds Ltd | Other services | 2016 |
| Fresh Faces Limited | Agriculture & fishing | 1980 |
| Fresh Fruit Leeds Ltd | Wholesale & retail | 2021 |
| Fresh Metal Limited | Manufacturing | 2017 |
| Fresh N Go Supermarket Ltd | Wholesale & retail | 2026 |
| Fresh Olives 2 & Sweets Limited | Wholesale & retail | 2026 |
| Fresh Olives Sweets Ltd | Wholesale & retail | 2026 |
| Fresh Start Living Home Implementation Ltd | Construction | 2022 |
| Fresh Start Living Home Ltd | Construction | 2018 |