| Fizzy Peaks Ltd | Arts & recreation | 2025 |
| Flame Concepts Limited | Information & communication | 2012 |
| Flash EDU Ltd | Health & social care | 2026 |
| Flash Fabrication Ltd | Manufacturing | 2024 |
| Flawless Carpets & Vinyls Limited | Construction | 2024 |
| Fleet Legal Limited | Extraterritorial | 2017 |
| Fleetbase Limited | Information & communication | 2019 |
| Fleetwise Solutions Ltd | Wholesale & retail | 2023 |
| Flipside Care Ltd | Health & social care | 2021 |
| Flushu Limited | Construction | 2020 |
| Flutter & Fern Ltd | Arts & recreation | 2023 |
| Fmcg Executive Consultancy Limited | Administrative & support | 2017 |
| Focus INK Ltd | Other services | 2018 |
| Focus Plumbing Supplies Ltd | Wholesale & retail | 2020 |
| Focus Point Design Ltd | Information & communication | 2022 |
| Follow the Hound Limited | Construction | 2016 |
| Fone Plus Ltd | Wholesale & retail | 2025 |
| Food Compliance Compass Limited | Professional & scientific | 2024 |
| Footlaffs Limited | Other services | 2018 |
| Footloosenights Ltd | Hospitality | 2025 |
| Forbes Roofing Limited | Construction | 2015 |
| Foremost Civil Engineering Ltd | Construction | 2014 |
| Forest Houses Sewage Treatment Plant Company Limited | Administrative & support | 2021 |
| Forestrose | Real estate | 2007 |
| Forestry Farms Limited | Agriculture & fishing | 2021 |
| Forfold Properties Limited | Real estate | 2018 |
| Forge Infrastructure Limited | Construction | 2026 |
| Formal Tailors 1885 Limited | Wholesale & retail | 2017 |
| Fortress Garage Doors Limited | Construction | 2019 |
| Fortune Garden Limited | Hospitality | 2021 |
| Foundations Nail & Beauty Academy Ltd | Administrative & support | 2016 |
| Four Fells Ltd | Information & communication | 2026 |
| Four Furrows Limited | Construction | 2017 |
| Four Leaf Clover Leisure Ltd | Hospitality | 2014 |
| Four Leaf Clover Properties Limited | Water & waste | 2012 |
| Four Minute Mile Success Limited | Administrative & support | 2015 |
| FOX & Pheasant (Armathwaite) Ltd | Hospitality | 2017 |
| FOX of ST. Aveline Ltd | Manufacturing | 2026 |
| Foxa Ltd | Hospitality | 2014 |
| Foxbridge Rise (Seaton) Management Company Limited | Real estate | 2025 |
| Frank Johnston (Tractors) Limited | Wholesale & retail | 1977 |
| Frank Taylor Limited | Wholesale & retail | 2007 |
| Franklin Casas Ltd | Real estate | 2024 |
| Franklooks Ltd | Professional & scientific | 2025 |
| Franparcels Ltd | Transport & logistics | 2026 |
| Fraser Renewables Limited | Construction | 2023 |
| Fred Bear Carpets Limited | Wholesale & retail | 2003 |
| Fred Proudfoot Limited | Wholesale & retail | 1938 |
| Freedom Clean Limited | Extraterritorial | 2010 |
| Freshtrans Limited | Transport & logistics | 2005 |
| Friends of the Memorial Hall, Warwick-On-Eden | Administrative & support | 2005 |
| Frizington Properties Limited | Financial services | 1976 |
| Front Foot Communications Ltd. | Real estate | 2007 |
| Frontline Improvements Limited | Construction | 2021 |
| Frontpage Digital Ltd. | Professional & scientific | 2019 |
| FRS (Cumbria) Limited | Other services | 2020 |
| Ftnightlife Ltd | Hospitality | 2025 |
| Fudami Limited | Administrative & support | 2006 |
| Fuel Cards on Site Ltd | Wholesale & retail | 2021 |
| Fuel Optimisation Services | Real estate | 2010 |
| Fulcrum Project Services Limited | Professional & scientific | 2022 |
| Full Feast Mode Ltd | Hospitality | 2025 |
| Full Spectrum Property Services Limited | Construction | 2017 |
| Fulshaw Manor (Wilmslow) Management Company Limited | Real estate | 2023 |
| Fulton Electrical Services Limited | Construction | 2023 |
| Furnito Ltd | Real estate | 2016 |
| Furze Court (Carlisle) Limited | Households | 1990 |
| Fusionrover Ltd | Professional & scientific | 2022 |
| Future Foundhers Ltd | Professional & scientific | 2025 |
| Future Money Limited | Financial services | 2008 |
| Futureisvinyl Ltd | Wholesale & retail | 2025 |
| Fuvm Limited | Hospitality | 2019 |
| Fylde Leisure & Marine Ltd | Wholesale & retail | 2010 |
| G & D Lawson Plumbing & Heating Limited | Construction | 2004 |
| G & G Joiners Ltd | Construction | 2019 |
| G & L Ferguson (Builders) Limited | Construction | 2002 |
| G & M Tools and Equipment Ltd | Manufacturing | 2001 |
| G & T Solutions Limited | Administrative & support | 2016 |
| G a Cumbria Ltd | Hospitality | 2022 |
| G Braddock Auto Electrical Limited | Wholesale & retail | 2023 |
| G C Engineering (Carlisle) Ltd | Professional & scientific | 2018 |
| G D & M Dunglinson Limited | Manufacturing | 2011 |
| G Fearon Limited | Agriculture & fishing | 2008 |
| G G P Inglis Limited | Professional & scientific | 2016 |
| G Griffiths Engineering Limited | Professional & scientific | 2017 |
| G H Electrical Cumbria Limited | Construction | 2012 |
| G Ivinson Haulage Ltd | Transport & logistics | 2016 |
| G J Northeast Industrial Investments LLP | | 2018 |
| G L Fire & Security Limited | Administrative & support | 2019 |
| G M T Cleaning Limited | Other services | 2002 |
| G Murray Engineering Ltd | Professional & scientific | 2025 |
| G R C Financial Services Limited | Administrative & support | 2003 |
| G Tech Electrical UK Limited | Construction | 2005 |
| G Woodley Property Ltd | Extraterritorial | 2023 |
| G&L Commerce Ltd | Wholesale & retail | 2022 |
| G&L Fitness Ltd. | Arts & recreation | 2014 |
| G&P Leisure Ltd | Hospitality | 2021 |
| G-Online Retail Ltd | Wholesale & retail | 2026 |
| G.C.L. Stephenson Limited | Agriculture & fishing | 1999 |
| G.G.E. Ltd. | Construction | 1993 |