| Foundry Pathways CIC | Education | 2026 |
| Fountain Mediation Limited | Professional & scientific | 2012 |
| Four Brothers Global Ltd | Wholesale & retail | 2023 |
| Fourquest Energy (UK) Limited | Mining & quarrying | 2021 |
| FOX Post Limited | Wholesale & retail | 2021 |
| FOX Survey Limited | Professional & scientific | 2006 |
| Foxtec Instruments Limited | Professional & scientific | 2013 |
| Foxtec Property Services Limited | Real estate | 2020 |
| Foxwell Contracts Limited | Construction | 2016 |
| Foxy Mini Market Ltd | Wholesale & retail | 2024 |
| FRA Jewellery Ltd | Wholesale & retail | 2025 |
| Frade Properties Ltd | Real estate | 2024 |
| Framwellgate Dental Surgery Limited | Health & social care | 2008 |
| France T Limited | Wholesale & retail | 2016 |
| Francis HSE Advisor and Scaffolding Consultant Ltd | Professional & scientific | 2012 |
| Francisco Logistics Limited | Transport & logistics | 2024 |
| Franco Pizza Ltd | Hospitality | 2023 |
| Frank G. Whitworth Limited | Administrative & support | 2020 |
| Frank Wilkinson Flooring Limited | Wholesale & retail | 2012 |
| Franny Rigging & Lifting Ltd | Professional & scientific | 2023 |
| Freeco Ltd | Administrative & support | 2021 |
| Freeco NE Ltd | Administrative & support | 2021 |
| Freers Askew Bunting Solicitors Limited | Professional & scientific | 2014 |
| Freestyle Community Projects CIC | Administrative & support | 2023 |
| French Auto Specialists Limited | Wholesale & retail | 2015 |
| Fresh Desi Pizza Ltd | Hospitality | 2025 |
| Fresh N Clean North East Ltd | Administrative & support | 2019 |
| Fresh the Meal Prep Co Limited | Hospitality | 2018 |
| Freymar Limited | Other services | 2021 |
| Frilans Records Limited | Information & communication | 2025 |
| FRM North East Ltd | Education | 2021 |
| Frobertan Limited | Real estate | 2019 |
| Front Street Pizzeria Ltd | Hospitality | 2023 |
| Frontline Trade Ltd | Wholesale & retail | 2025 |
| Frydays Eston Pizza Ltd | Hospitality | 2025 |
| FS Cleaners Ltd | Administrative & support | 2022 |
| FS Store Ltd | Wholesale & retail | 2022 |
| FSA NE Properties Limited | Real estate | 2024 |
| FSI (NE) Ltd | Wholesale & retail | 2021 |
| FSL Courier's Ltd | Transport & logistics | 2025 |
| FTS Group Limited | Construction | 1991 |
| Fuelocity Group Ltd | Wholesale & retail | 2019 |
| Fulcrum Education Solutions Ltd | Education | 2024 |
| Full Spec (NE) Ltd | Construction | 2020 |
| Full Suite Analysis Ltd | Information & communication | 2022 |
| Fullers Earth Ltd | Wholesale & retail | 2020 |
| Fullers Field Community Interest Company | Health & social care | 2025 |
| Funcsafe Limited | Professional & scientific | 2021 |
| Funfair Signs Ltd | Other services | 2014 |
| Funfre Supreme Realty Limited | Hospitality | 2012 |
| Fusion Epos Limited | Administrative & support | 2021 |
| Fusion Store Ltd | Wholesale & retail | 2020 |
| Fusion Trade Solutions Ltd | Professional & scientific | 2025 |
| Futcom Holdings Ltd | Financial services | 2022 |
| Futcom Ltd | Professional & scientific | 2020 |
| Futcom Ventures Ltd | Real estate | 2022 |
| Futric Ltd | Administrative & support | 2021 |
| Future Filmmakers Academy Limited | Arts & recreation | 2022 |
| Future Industry Services Limited | Construction | 2020 |
| Future of Facades Ltd | Financial services | 2024 |
| Future Point Manchester DC1 Limited | Information & communication | 2025 |
| Future Point Manchester DC2 Limited | Information & communication | 2025 |
| Future Regeneration of Grangetown | Administrative & support | 1999 |
| Future Vision Analysis Ltd | Professional & scientific | 2024 |
| Futures Matter Community Interest Company | Education | 2021 |
| Futurescapes Landscaping Ltd | Administrative & support | 2025 |
| Fwicked Games Ltd | Information & communication | 2025 |
| FYD Ltd | Construction | 2024 |
| G & a (NE) Ltd | Construction | 2021 |
| G & a Taxis (Teesside) Ltd | Transport & logistics | 2024 |
| G & I Developments Limited | Real estate | 2002 |
| G & L Enterprises (NE) Limited | Wholesale & retail | 2009 |
| G & M Auto's Ltd | Wholesale & retail | 2020 |
| G Beadnall Construction Limited | Construction | 2024 |
| G Build UK Limited | Construction | 2017 |
| G D Offshore Services Limited | Administrative & support | 2014 |
| G F Evolux Ltd | Transport & logistics | 2026 |
| G Force Holdings Ltd | Financial services | 2024 |
| G Force Styling Ltd | Wholesale & retail | 2022 |
| G Hornby & Co Ltd | Extraterritorial | 2014 |
| G Jones Site Services Ltd | Construction | 2013 |
| G Love Properties Limited | Real estate | 2025 |
| G M Properties (Middlesbrough) Ltd | Construction | 2016 |
| G Morton Offshore Services Ltd | Professional & scientific | 2025 |
| G R Plumbing & Heating (NE) Limited | Construction | 2022 |
| G T Softlutions Limited | Information & communication | 2025 |
| G V Decorators Limited | Construction | 2009 |
| G W Solutions Ltd | Construction | 2016 |
| G&A London LET Ltd | Real estate | 2025 |
| G&G Management & Lettings Limited | Real estate | 2014 |
| G&G UK Services Ltd | Construction | 2022 |
| G&L Electrical and Inspection Services Limited | Construction | 2024 |
| G'S Golden Chippy & Pizzeria Limited | Hospitality | 2014 |
| G-Force Lifting Solutions Limited | Construction | 2016 |
| G-Roc Ltd | Construction | 2024 |
| G.A.Hope Electrics Northeast Ltd | Construction | 2014 |
| G.Arundel Ltd | Transport & logistics | 2014 |
| G.E. Curtis Limited | Transport & logistics | 1974 |
| G.E.Aerotech Ltd | Other services | 2014 |
| G.F. Tech Services Ltd | Construction | 2007 |