| Fairacres Developments Ltd | Real estate | 2015 |
| Fairacres Futures Ltd | Extraterritorial | 2015 |
| Fairchild Recording Equipment Corporation Ltd. | Manufacturing | 2012 |
| Fairclough & Dyer Ltd | Construction | 2014 |
| Fairfield C & G Group Ltd | Financial services | 2019 |
| Fairfield C & G Ltd | Other services | 1999 |
| Fairfield Property Group Ltd | Real estate | 2020 |
| Fairhaven Court (Ashburton Road) Limited | Households | 2003 |
| Fairway Copse (Brasted) Management Company Limited | Households | 2013 |
| Fake Empires Collective Ltd | Arts & recreation | 2019 |
| Falcon Wealth Search Limited | Administrative & support | 2012 |
| Fallow Wood View (Burgess Hill) Residents Management Company Limited | Households | 2024 |
| Famcpalmer Consulting Ltd | Professional & scientific | 2026 |
| Famous Publicity Ltd | Professional & scientific | 2014 |
| Fantasies UK Limited | Information & communication | 2009 |
| Fantastic Academic Science 2 Ltd | Extraterritorial | 2023 |
| FAS (Merstham) 2 Ltd | Professional & scientific | 2026 |
| FAS (Merstham) Ltd | Professional & scientific | 2023 |
| FAS (Redhill) Ltd | Professional & scientific | 2023 |
| FAS Consulting One Ltd | Professional & scientific | 2022 |
| FAS Merstham Free Ltd | Professional & scientific | 2026 |
| FAS Payroll 5 Ltd | Professional & scientific | 2026 |
| FAS PAYROLL-1 Ltd | Professional & scientific | 2023 |
| FAS PAYROLL-3 Ltd | Professional & scientific | 2024 |
| FAS PAYROLL-4 Ltd | Professional & scientific | 2025 |
| FAS Spare 18 Ltd | Wholesale & retail | 2018 |
| FAS Spare 19 Ltd | Extraterritorial | 2020 |
| FAS Spare 20 Ltd | Extraterritorial | 2022 |
| FAS Spare 21 Ltd | Extraterritorial | 2022 |
| FAS Spare 22 Ltd | Extraterritorial | 2024 |
| FAS Spare 23 Ltd | Extraterritorial | 2024 |
| FAS Spare 24 Ltd | Extraterritorial | 2024 |
| FAS Spare 24B Ltd | Extraterritorial | 2024 |
| FAS Spare 6 Limited | Extraterritorial | 2013 |
| FAS Utilities Ltd | Professional & scientific | 2023 |
| Fascinating Academic Science Limited | Extraterritorial | 2014 |
| Fatclouds Ltd | Information & communication | 2011 |
| Fatimauk Ltd | Professional & scientific | 2026 |
| Fattal 39 Capital Limited | Professional & scientific | 2018 |
| Fattyz Cookhouse Limited | Hospitality | 2023 |
| Faustie's Ltd | Health & social care | 2022 |
| Fawm Property Limited | Real estate | 2017 |
| FC Pickering Holdings Ltd | Financial services | 2018 |
| Featherstone Fitness Ltd | Arts & recreation | 2018 |
| Felizhome Properties Ltd | Real estate | 2024 |
| Fendi Estates Ltd | Professional & scientific | 2024 |
| Fieldmore Limited | Real estate | 1999 |
| Fileexpert Ltd | Information & communication | 2011 |
| Filth Busters Exterior Cleaning Ltd | Administrative & support | 2026 |
| Finch Motors Engineering Ltd | Wholesale & retail | 2023 |
| FIND4U Ltd | Other services | 2025 |
| Fine Finish (Taping and Jointing) Limited | Construction | 2002 |
| Fine Homes Surrey Ltd | Construction | 2020 |
| Fins Group Ltd | Financial services | 2021 |
| Fins Motorcycles Limited | Wholesale & retail | 2013 |
| Finsbridge Limited | Financial services | 2020 |
| Firebird Holdings Ltd | Wholesale & retail | 2023 |
| Fireside Historical Events Ltd | Arts & recreation | 2023 |
| First Call Signs Limited | Manufacturing | 2011 |
| First Community Health & Care C.I.C. | Health & social care | 2011 |
| First Community Services Limited | Health & social care | 2014 |
| First FIX Heroes Ltd | Construction | 2022 |
| First Group Choice Ltd | Financial services | 2017 |
| First Money Services Ltd | Financial services | 2020 |
| First Step Nursery Ltd | Education | 2008 |
| Firtree Court Residents' Association Limited | Households | 1967 |
| Fistral Consultants Limited | Professional & scientific | 2022 |
| Fit Droids Ltd | Wholesale & retail | 2014 |
| Fittrybe Ltd | Information & communication | 2026 |
| Fixings & Powertool Center Limited | Wholesale & retail | 1994 |
| Flamingo Property Ltd | Real estate | 2016 |
| Flare Bespoke Limited | Construction | 2023 |
| Flat White Services Ltd | Professional & scientific | 2024 |
| Flour & Bloom Ltd | Manufacturing | 2025 |
| Flourishing Flower Walls Ltd | Administrative & support | 2020 |
| Flowmaster Drainage Limited | Water & waste | 2026 |
| Fluid Options UK Limited | Other services | 1999 |
| FLY Airport Transfer Ltd | Transport & logistics | 2025 |
| Flying Flight Limited | Administrative & support | 2023 |
| Flyride Gatwick Transfers Ltd | Transport & logistics | 2026 |
| FMX Automations Ltd | Information & communication | 2025 |
| FMX Group Ltd | Financial services | 2025 |
| FMX Trading Ltd | Financial services | 2026 |
| Focus Chain Limited | Professional & scientific | 2023 |
| Fons Collective Brokerage Limited | Professional & scientific | 2025 |
| Fontana Lewis Ltd | Information & communication | 2025 |
| Footmech (Reigate) Ltd | Health & social care | 2023 |
| Footmech Ltd | Health & social care | 2018 |
| Fordbridge Services Ltd | Administrative & support | 2018 |
| Forelian (Properties) Limited | Real estate | 1977 |
| Forged Boxing Ltd | Arts & recreation | 2025 |
| Formosa Plumbing & Bathroom Specialists Ltd | Construction | 2021 |
| Formwork Specialists Ltd | Administrative & support | 2023 |
| Fortis Data Management Ltd | Construction | 2025 |
| Foss & Co Group Ltd | Real estate | 2015 |
| Foss Holdings Limited | Professional & scientific | 2007 |
| Foster Fruit & VEG Wholesale Limited | Wholesale & retail | 2024 |
| Fosters Fruit N VEG Limited | Wholesale & retail | 2020 |
| Fountain Safety and Compliance Limited | Administrative & support | 2024 |
| Foxbury Homes Limited | Construction | 1999 |