| Falcon Automotive Engineering Limited | Professional & scientific | 1998 |
| Falcon Couriers Ltd | Transport & logistics | 2025 |
| Falcon Logistics and Warehousing Ltd | Transport & logistics | 2020 |
| Faldingworth Poultry Ltd | Agriculture & fishing | 2024 |
| Fallen Flag Studio Ltd | Information & communication | 2018 |
| Faloh Ltd | Real estate | 2025 |
| Falvey Aviation Consulting Services Ltd | Manufacturing | 2024 |
| Falvey Property Holdings Ltd | Real estate | 2026 |
| FAM Fade 2 Ltd | Other services | 2024 |
| FAM Fade Ltd | Other services | 2024 |
| Famhives Ltd | Information & communication | 2023 |
| Family Planning Ltd | Education | 2024 |
| Family Support Derbyshire Ltd | Health & social care | 2004 |
| Famous Forever Ltd | Wholesale & retail | 2019 |
| Famous Trains Ltd | Arts & recreation | 2012 |
| Fantasy Properties Limited | Construction | 1996 |
| Farkhandah Raqib Optometry Ltd | Health & social care | 2022 |
| Farley Property U.K Limited | Real estate | 2023 |
| Farm Lane Cars Limited | Wholesale & retail | 2025 |
| Farm Mart Ltd | Wholesale & retail | 2026 |
| Farm Roots Ltd | Manufacturing | 2025 |
| Farmers Market PVT Ltd | Information & communication | 2024 |
| Farmhouse Consulting Limited | Professional & scientific | 2010 |
| Farsight Recruitment Limited | Administrative & support | 2005 |
| Farux Ltd | Wholesale & retail | 2025 |
| Fashion Fabrics (Derby) Ltd | Wholesale & retail | 2018 |
| Fashion Road Ltd | Wholesale & retail | 2024 |
| Fashions Fits Ltd | Wholesale & retail | 2024 |
| Fast Approval Ltd | Wholesale & retail | 2026 |
| Fast Emergency Plumber Ltd | Construction | 2026 |
| Fast FIX Derby Limited | Wholesale & retail | 2020 |
| Fast Flooring Supplies Ltd | Administrative & support | 2017 |
| Fast Food Derby Ltd | Hospitality | 2023 |
| Fast Lane Travel Ltd | Transport & logistics | 2024 |
| Fast Logistics Derby Limited | Transport & logistics | 2025 |
| Fast Track Renewables Ltd | Construction | 2025 |
| Fastaway Services (U.K.) Limited | Water & waste | 2000 |
| Fastaway Solutions (U.K) Ltd | Water & waste | 2010 |
| Fastline Autos Limited | Wholesale & retail | 2017 |
| Fastpinger Ltd | Wholesale & retail | 2025 |
| FAT Bunny Ltd | Real estate | 2011 |
| Fatboyz Limited | Hospitality | 2023 |
| Fatboyzz Ltd | Hospitality | 2025 |
| Fathomtree Limited | Manufacturing | 1982 |
| Faucole Limited | Financial services | 2024 |
| Fauz-I Ltd | Health & social care | 2017 |
| Fave Medical Limited | Health & social care | 2020 |
| Favourite Fast Food Ltd | Hospitality | 2019 |
| Favourite Sinfin Ltd | Hospitality | 2025 |
| Favrals Beauty Lines & Supplies UK Ltd | Wholesale & retail | 2025 |
| Fayluk Ltd | Health & social care | 2019 |
| Fazane Malik Clothing Ltd | Wholesale & retail | 2011 |
| FB 35 Limited | Real estate | 2007 |
| FB Collections Limited | Administrative & support | 2015 |
| FB Debts Limited | Professional & scientific | 2015 |
| FB Optics Limited | Health & social care | 2011 |
| FB VEG Limited | Wholesale & retail | 2023 |
| Fbgm Holdings Ltd | Financial services | 2026 |
| FC Broad Services Limited | Health & social care | 2015 |
| Fcal Limited | Information & communication | 2012 |
| FCG Property Services Ltd | Real estate | 2018 |
| Fcsaini Consultants Ltd | Information & communication | 2015 |
| FD Living Ltd | Real estate | 2024 |
| FD Review Limited | Professional & scientific | 2020 |
| Fdata Limited | Information & communication | 2024 |
| FDF Distrubutions Limited | Wholesale & retail | 2026 |
| Fearless Females in Business Limited | Education | 2023 |
| Fearn Group Ltd | Financial services | 2024 |
| Fearon's Weight Training Gym and Boxing Academy CIC | Education | 2013 |
| Feathers & Oak Limited | Wholesale & retail | 2016 |
| Feel Alive Hub CIC | Health & social care | 2020 |
| Feelgood Academy the Musical UK Limited | Arts & recreation | 2013 |
| Feet (ETC) Limited | Health & social care | 2013 |
| Felcan Limited | Professional & scientific | 2018 |
| Felden Homes Ltd | Real estate | 2017 |
| Felli Healthcare Ltd | Health & social care | 2024 |
| Fellows Funeral Directors Limited | Other services | 2023 |
| Fellside Gardens Residents Management Company Limited | Households | 2023 |
| Fellside Properties (Derby) Limited | Real estate | 2017 |
| Fellu Properties Limited | Real estate | 2023 |
| Fellwood Advisory Ltd | Professional & scientific | 2023 |
| Females in IT Together Limited | Manufacturing | 2020 |
| Fempowered Property Ltd | Professional & scientific | 2024 |
| Fencarta Estates Limited | Financial services | 2020 |
| Fenea Ltd | Wholesale & retail | 2017 |
| Fenix Consultancy Limited | Professional & scientific | 2026 |
| Fenko Restaurants Limited | Hospitality | 2023 |
| Fenland Ecology Ltd | Professional & scientific | 2024 |
| Fenrir Services Limited | Transport & logistics | 2019 |
| Fenton Trauma and Orthopaedics Limited | Health & social care | 2018 |
| Fenwick Medical Services Limited | Health & social care | 2010 |
| Ferguson’S Auto Ltd | Professional & scientific | 2026 |
| Fergusson Hoskins Estates Limited | Extraterritorial | 2019 |
| Ferko Ltd | Wholesale & retail | 2025 |
| Fernbrook Estates Limited | Real estate | 2009 |
| Ferrier Group Ltd | Manufacturing | 2024 |
| Ferry Lane Farms Limited | Agriculture & fishing | 2014 |
| Festival Inn (Trowell) Limited | Real estate | 1954 |
| Festival of Food & Drink Limited | Administrative & support | 2013 |
| Feudal Property Limited | Financial services | 2022 |