| Fosse Andrew Consulting Limited | Professional & scientific | 2020 |
| Fosse Engineering & Fabrication Ltd | Professional & scientific | 2026 |
| Four Counties Doors Ltd | Administrative & support | 2019 |
| Four Shire Farms Ltd | Agriculture & fishing | 2019 |
| Four Shires Garage Doors Ltd | Other services | 2016 |
| Four Shires Plastering & Rendering Ltd | Construction | 2022 |
| Four Shires Veterinary Practice Limited | Professional & scientific | 2013 |
| Four Storey House Ltd | Arts & recreation | 2013 |
| Four Winds Accountancy Limited | Professional & scientific | 2016 |
| Fowlers of Banbury Limited | Real estate | 2025 |
| Foxcote Limited | Professional & scientific | 2017 |
| Foxden Way Ltd | Real estate | 2024 |
| Foxhill Consultants Limited | Professional & scientific | 2024 |
| FP Electric Ltd | Energy | 2022 |
| Framandra Ltd | Professional & scientific | 2015 |
| Frampton Town Planning Limited | Professional & scientific | 2005 |
| Franbro Ltd | Transport & logistics | 2020 |
| Franchise Consulting Limited | Professional & scientific | 2023 |
| Francis Tuthill Limited | Wholesale & retail | 2006 |
| Frank & Friend Ltd | Professional & scientific | 2021 |
| Franklin Covey Europe Limited | Professional & scientific | 1996 |
| Franklin Property Services Limited | Real estate | 2003 |
| Freddie LEE Mortgages Limited | Financial services | 2019 |
| Freechoice Lift Services Limited | Construction | 2018 |
| Freechoice Property Services Limited | Construction | 2004 |
| Freedom Health Group Ltd | Health & social care | 2024 |
| Freestyle Martial Arts Limited | Education | 2025 |
| Frequency Over Time Ltd | Information & communication | 2019 |
| Fresh Eyes Design Associates Limited | Administrative & support | 2003 |
| Fresh Minds Therapy Ltd | Health & social care | 2011 |
| Fresh Point Ltd | Financial services | 2025 |
| Freshstart Mobility Limited | Manufacturing | 2009 |
| Friars Hill Co. Limited | Real estate | 2000 |
| Friendly Hospitality Co Limited | Real estate | 2017 |
| Friends of Neithrop Allotments | Agriculture & fishing | 2017 |
| Frisby Lakes Cafe Limited | Hospitality | 2001 |
| Frisby Lakes Paddlesports Limited | Arts & recreation | 2024 |
| Frogsnest Farm Limited | Agriculture & fishing | 2021 |
| Frontier Field Marketing Limited | Administrative & support | 2000 |
| Frontier Property Limited | Administrative & support | 2004 |
| Frontliner Healthcare Services Limited | Health & social care | 2021 |
| Frosts (Online) Limited | Wholesale & retail | 2018 |
| Frosts Online (Holdings) Limited | Financial services | 2018 |
| Fruition Consulting Limited | Professional & scientific | 2024 |
| FTZ Logistics Ltd | Transport & logistics | 2025 |
| Fuente Leku Ltd | Professional & scientific | 2024 |
| Fujiji Fashion Ltd | Wholesale & retail | 2025 |
| Fulford Park Limited | Agriculture & fishing | 2017 |
| Full Circle Campervans Ltd | Wholesale & retail | 2023 |
| Full FAT 4X4 Ltd. | Wholesale & retail | 2021 |
| Full FAT Motors Ltd | Extraterritorial | 2023 |
| Fullbrook Holdings Limited | Financial services | 2022 |
| Fuller & SON (Deddington) Limited | Agriculture & fishing | 1961 |
| Fullerscope Services Ltd | Manufacturing | 2013 |
| Fullstax Ltd | Professional & scientific | 2023 |
| Funded by Savi Limited | Wholesale & retail | 2025 |
| Funderbolt Ltd | Professional & scientific | 2022 |
| Funky Stitch Limited | Other services | 2017 |
| Furious Production Ltd | Information & communication | 2022 |
| Furlong Electrical (Banbury) Limited | Construction | 2014 |
| Future Agenda Limited | Professional & scientific | 2010 |
| Future Generation Technology Limited | Construction | 2013 |
| Future Network Distribution Limited | Wholesale & retail | 2007 |
| Future Transport Ltd | Real estate | 2009 |
| Futureview Marketing Limited | Professional & scientific | 2016 |
| G & a Construction(Uk) Ltd | Construction | 2020 |
| G & G Fine Italian Foods Limited | Wholesale & retail | 2013 |
| G and H Fibre Limited | Information & communication | 2024 |
| G Brother Traders Ltd | Administrative & support | 2018 |
| G D Electrical Solutions Ltd | Construction | 2023 |
| G K Autos Limited | Wholesale & retail | 2005 |
| G T a Industrial Roofing and Cladding Ltd | Administrative & support | 2016 |
| G&T Search Limited | Professional & scientific | 2016 |
| G-Tech Commercial Windows Ltd | Construction | 2013 |
| G.P.T.Business Services Limited | Information & communication | 2010 |
| G.Staveley Parker and Sons Limited | Agriculture & fishing | 1963 |
| G2 Property Group Limited | Real estate | 2021 |
| G2-IT Ltd | Professional & scientific | 2023 |
| GA Building Solution Ltd | Construction | 2017 |
| Gabriel Andreev Limited | Transport & logistics | 2025 |
| Gadgetshq Limited | Wholesale & retail | 2025 |
| Gajda Repairs Ltd | Wholesale & retail | 2024 |
| Gajit Software Limited | Information & communication | 2008 |
| Gallus Ltd | Real estate | 2017 |
| Galmer Properties Limited | Real estate | 1999 |
| Gamechanger Nightlife Limited | Hospitality | 2023 |
| Gamechanger Property Limited | Real estate | 2013 |
| Ganpack Ltd | Administrative & support | 2018 |
| Garageline Ltd | Wholesale & retail | 2025 |
| Garnet Gaming Limited | Wholesale & retail | 2025 |
| Garrett Electrical Services Ltd | Construction | 2015 |
| Garry Penn Ltd | Wholesale & retail | 2002 |
| Garzaaesthetic Ltd | Other services | 2025 |
| Gas-Tech Heating Services (Banbury) Ltd | Construction | 2009 |
| Gaskin Christie Architects Ltd | Professional & scientific | 2015 |
| Gaswise Plumbing & Heating Services (UK) Ltd | Construction | 2015 |
| Gauntly & Arabin Limited | Health & social care | 2014 |
| Gazebo Shop.Co.Uk Limited | Wholesale & retail | 2016 |
| GB Fleetcare Limited | Wholesale & retail | 2000 |
| Gbas Investment Ltd | Real estate | 2023 |