| Frameworks Studios Global Limited | Information & communication | 2025 |
| Frank Craney Limited | Real estate | 2015 |
| Frankys Bowtique Limited | Manufacturing | 2017 |
| Fraser Lake Limited | Real estate | 2005 |
| Fred Mence (Construction) Limited | Construction | 1989 |
| Fred White Limited | Wholesale & retail | 2015 |
| Freddy Films (London) Limited | Professional & scientific | 2011 |
| Freehold Finders Limited | Real estate | 2022 |
| Freelance Access Limited | Administrative & support | 2017 |
| Freelanceo Ltd | Wholesale & retail | 2024 |
| Freeman Finance (North East) Limited | Professional & scientific | 2014 |
| Freezy Limited | Wholesale & retail | 2024 |
| Freng TEC Solutions Limited | Professional & scientific | 2017 |
| Fresh at Home UK Ltd | Wholesale & retail | 2021 |
| Fresh Big Bite Limited | Hospitality | 2025 |
| Fresh Cuts (Northeast) Ltd | Other services | 2025 |
| Fresh Feast UK Limited | Wholesale & retail | 2024 |
| Fresh Freight Limited | Transport & logistics | 1993 |
| Fresh N Fruity (GHD) Ltd | Wholesale & retail | 2023 |
| Fresh N Fruity (NE) Ltd | Wholesale & retail | 2020 |
| Fresh Paws Supplies Limited | Wholesale & retail | 2021 |
| Freshly Seal’D Ltd | Manufacturing | 2025 |
| FRH Locums Ltd | Health & social care | 2019 |
| Friction Bouldering Ltd | Arts & recreation | 2021 |
| Friends of Biala Limited | Health & social care | 1964 |
| Friends of High Borrans | Education | 2011 |
| Friends Studio Ltd | Professional & scientific | 2019 |
| From Loft to Loved Workshops C.I.C. | Education | 2022 |
| Front Point Energy Limited | Wholesale & retail | 2023 |
| Frontline International Solutions Limited | Wholesale & retail | 2019 |
| Frosa Foods Limited | Hospitality | 2021 |
| Frum Frog Ltd | Real estate | 2022 |
| Fsc-A Holdings Ltd | Financial services | 2018 |
| FST (Gateshead) Limited | Education | 2021 |
| Fuad Ahmed Denti Limited | Health & social care | 2024 |
| Fulcare Properties Limited | Real estate | 2012 |
| Fulli's Paperware Limited | Wholesale & retail | 2003 |
| Fulli's Retail Ltd | Wholesale & retail | 2012 |
| Function Fitness South East Limited | Arts & recreation | 2021 |
| Funky Avocado Limited | Arts & recreation | 2026 |
| Funky Beauty Empire Ltd | Other services | 2024 |
| Funnel GUY Global Ltd | Wholesale & retail | 2019 |
| Funny Mugs Limited | Wholesale & retail | 2025 |
| Furneaux House LLP | | 2018 |
| Furniture Solutions (Northumberland) Limited | Construction | 2007 |
| Future EV Ltd | Construction | 2015 |
| Future Renewable Solutions Limited | Wholesale & retail | 2017 |
| FV Foods Ltd | Wholesale & retail | 2025 |
| FW Land Ltd | Construction | 2023 |
| FWF Gateshead Limited | Real estate | 2025 |
| Fxmentoring Ltd | Education | 2025 |
| Fxtra Accessories BR BL Ltd | Wholesale & retail | 2026 |
| Fxtra Accessories BR Red Ltd | Wholesale & retail | 2026 |
| Fxtra Accessories Carl Ltd | Wholesale & retail | 2026 |
| Fxtra Accessories Grim Ltd | Wholesale & retail | 2026 |
| Fxtra Accessories MET BL Ltd | Wholesale & retail | 2026 |
| Fxtra Accessories Repair Ltd | Wholesale & retail | 2026 |
| Fxtra Accessories SL Ltd | Wholesale & retail | 2026 |
| Fxtra Accessories Wash Ltd | Wholesale & retail | 2026 |
| Fxtra Mobile BR BL Ltd | Wholesale & retail | 2026 |
| Fxtra Mobile BR Red Ltd | Wholesale & retail | 2026 |
| Fxtra Mobile Grim Ltd | Wholesale & retail | 2026 |
| Fxtra Mobile MET BL Ltd | Wholesale & retail | 2026 |
| Fxtra Mobile Repair Ltd | Wholesale & retail | 2026 |
| Fxtra Mobile SL Ltd | Wholesale & retail | 2026 |
| Fxtra Repairs BR Red Ltd | Wholesale & retail | 2026 |
| Fylde Lets Limited | Hospitality | 2024 |
| G & B Civil Engineering Limited | Construction | 1991 |
| G & H (NE) Ltd | Wholesale & retail | 2025 |
| G & H Health Care Limited | Health & social care | 2014 |
| G & J Travel & Transport T/A Winns Coaches Limited | Transport & logistics | 2019 |
| G & K 3 Ltd | Hospitality | 2008 |
| G & L Equipment Limited | Administrative & support | 2011 |
| G C Autos Limited | Manufacturing | 2015 |
| G Cars North East Limited | Wholesale & retail | 2015 |
| G Executive Ltd | Administrative & support | 2026 |
| G F Electrics Ltd | Construction | 2025 |
| G Malc Ltd | Professional & scientific | 2020 |
| G Maund Limited | Wholesale & retail | 1958 |
| G Popa Ltd | Health & social care | 2014 |
| G S Pannu Limited | Wholesale & retail | 2014 |
| G Vision Limited | Professional & scientific | 2019 |
| G Wayman Ltd | Construction | 2026 |
| G&L Telecom Limited | Information & communication | 2015 |
| G&R Lettings Limited | Real estate | 2018 |
| G-Vagus Ltd | Health & social care | 2011 |
| G. K. Butchers Limited | Manufacturing | 2011 |
| G.B.M. Products Limited | Manufacturing | 2003 |
| G.Crystal Ltd | Construction | 2022 |
| G.L. Ford & Co. Limited | Wholesale & retail | 1973 |
| G.X.R. Limited | Transport & logistics | 1997 |
| G2 Electrical Contractors Limited | Construction | 2016 |
| Gabi Freight Services Limited | Transport & logistics | 2025 |
| GAD Tuning North Limited | Professional & scientific | 2014 |
| Gaiadon Group Ltd | Financial services | 2025 |
| Galactic Truth Creator Network Limited | Information & communication | 2025 |
| Galaxy BJ Ltd | Real estate | 2021 |
| Galeotti Brothers LN Ltd | Hospitality | 2024 |
| Galeriecop Ltd | Information & communication | 2026 |
| Galloping Green Farm Road Limited | Real estate | 1999 |