| Fast Food Plaza Ltd | Hospitality | 2016 |
| Fast Food Plus Ltd | Hospitality | 2019 |
| Fast Forward Distribution Ltd. | Transport & logistics | 1997 |
| Fast Forward Living Ltd | Hospitality | 2020 |
| Fast Forward Transport (2020) Limited | Transport & logistics | 2020 |
| Fast Forward Transport (Birmingham) Ltd | Transport & logistics | 2016 |
| Fast Fulfillment Center Ltd | Transport & logistics | 2021 |
| Fast FWD Multimedia Ltd | Information & communication | 2010 |
| Fast GAS Solutions Ltd | Other services | 2024 |
| Fast Lane Birmingham Ltd | Wholesale & retail | 2026 |
| Fast Lane Music Limited | Arts & recreation | 2005 |
| Fast Lane Properties (Midlands) Limited | Real estate | 2020 |
| Fast Mortgages Limited | Financial services | 2023 |
| Fast N Efficient Shipping Ltd | Wholesale & retail | 2019 |
| Fast N Fresh Kebab House Ltd | Hospitality | 2025 |
| Fast Pass Ltd | Education | 2021 |
| Fast Property Buyers Ltd | Real estate | 2019 |
| Fast Safe Storage Limited | Transport & logistics | 2012 |
| Fast Sale Today Ltd | Real estate | 2006 |
| Fast Scripts Limited | Wholesale & retail | 2025 |
| Fast Secure Deliveries Ltd | Transport & logistics | 2025 |
| Fast Security & Facilities Limited | Transport & logistics | 2018 |
| Fast Security Limited | Financial services | 2025 |
| Fast Shift Security Ltd | Administrative & support | 2024 |
| Fast Suppliers Ltd | Wholesale & retail | 2022 |
| Fast Sure Freight Solutions Ltd | Transport & logistics | 2024 |
| Fast Technology Services Ltd | Information & communication | 2013 |
| Fast Track Consultants Limited | Hospitality | 2020 |
| Fast Track Global Consultants Ltd | Professional & scientific | 2021 |
| Fast Track Global Ltd | Wholesale & retail | 2020 |
| Fast Track Global Shipping Limited | Transport & logistics | 2018 |
| Fast Track Immigration Advice Services Limited | Professional & scientific | 2021 |
| Fast Track Recoveries Ltd | Other services | 2016 |
| Fast Track Vehicles Ltd | Wholesale & retail | 2025 |
| Fast Tracked Logistics Limited | Transport & logistics | 2016 |
| Fast Tunes Ltd | Information & communication | 2021 |
| Fast Twitch Physiotherapy Limited | Health & social care | 2026 |
| Fast UK Couriers Limited | Transport & logistics | 2018 |
| Fast UK Services Ltd | Transport & logistics | 2023 |
| Fast Z Developers Ltd | Real estate | 2023 |
| Fast Z Properties Ltd | Real estate | 2024 |
| Fast&Furious Courier Ltd | Transport & logistics | 2025 |
| Fast-Fit Hardware Ltd | Wholesale & retail | 2025 |
| FAST81 Limited | Administrative & support | 2016 |
| Fastaction Limited | Transport & logistics | 2025 |
| Fastandsecure Ltd | Transport & logistics | 2025 |
| Fastball Parent 3 Limited | Arts & recreation | 2020 |
| Fastcabbi Ltd | Transport & logistics | 2023 |
| Fastech Prestressing UK Ltd | Construction | 2024 |
| Fastek Limited | Information & communication | 2014 |
| Fastfinders.Co.Uk Limited | Professional & scientific | 2007 |
| Fastfit Dynamics Ltd | Wholesale & retail | 2025 |
| Fastfood Sellyoak Ltd | Hospitality | 2026 |
| Fastispeed Limited | Information & communication | 2018 |
| Fastlane Couriers 24/7 Ltd | Transport & logistics | 2025 |
| Fastlane Properties Ltd | Real estate | 2024 |
| Fastline Parts Ltd | Wholesale & retail | 2023 |
| Fastlink Office Solutions Ltd | Manufacturing | 2007 |
| Fastnet Group Limited | Administrative & support | 2022 |
| Fastnorth Limited | Construction | 1982 |
| Fastr PAY Ltd | Administrative & support | 2025 |
| Fastroad Enterprise Ltd | Wholesale & retail | 2021 |
| Fasttrack Group Ltd | Transport & logistics | 2026 |
| Fasttrack Supported Living Ltd | Real estate | 2025 |
| Fastway Truck Ltd | Transport & logistics | 2025 |
| FAT Belly Ltd | Hospitality | 2025 |
| FAT Cat Kitchen Limited | Hospitality | 2023 |
| FAT Chicken Ltd | Hospitality | 2015 |
| FAT Flavours Ltd | Administrative & support | 2018 |
| FAT Larry’S Limited | Hospitality | 2024 |
| FAT Moh's Diner Limited | Hospitality | 2025 |
| FAT Pepper Limited | Hospitality | 2016 |
| FAT Salmon Estates Limited | Real estate | 2016 |
| FAT SIN Tong (UK) Limited | Other services | 1998 |
| Fata Distributors Limited | Hospitality | 2022 |
| Fatchett & Co. Notaries Limited | Professional & scientific | 2022 |
| Fate (Investments) Limited | Real estate | 2025 |
| Fate Commercial Property Solutions Ltd | Real estate | 2023 |
| Fate Consultancy Limited | Wholesale & retail | 2026 |
| Fate FM Limited | Administrative & support | 2024 |
| Fatech Midlands Ltd | Wholesale & retail | 2024 |
| Fateh Capital Limited | Real estate | 2021 |
| Fateh Holdings Ltd | Financial services | 2016 |
| Fateha Estate UK Limited | Real estate | 2024 |
| Fathers Barn Ltd | Real estate | 2015 |
| Fathersolution Ltd | Information & communication | 2023 |
| Fathersons Limited | Construction | 2004 |
| Fathom Electrical Ltd | Construction | 2024 |
| Fati Goods Ltd | Wholesale & retail | 2025 |
| Fatih Academy Ltd | Education | 2023 |
| Fatih Khanzada Limited | Wholesale & retail | 2025 |
| Fatiha Digital Ltd | Information & communication | 2024 |
| Fatima & Subhan Textiles Ltd | Wholesale & retail | 2018 |
| Fatima Bridal Ltd | Wholesale & retail | 2024 |
| Fatima Export & Imports Ltd | Wholesale & retail | 2013 |
| Fatima Health Ltd | Health & social care | 2014 |
| Fatiminah Limited | Health & social care | 2021 |
| Fatiza Ltd | Extraterritorial | 2024 |
| Fatplate Golf Limited | Manufacturing | 2016 |
| Fatstripe Signs Ltd | Administrative & support | 2012 |