| First Steps Kindergarten LLP | | 2026 |
| Firsteditioncoventry Ltd | Wholesale & retail | 2026 |
| Firth Management Services Ltd | Hospitality | 2024 |
| Fiscus C.B. Limited | Financial services | 2020 |
| Fish and Chips Hub Ltd | Hospitality | 2022 |
| Fish and Chips Rugby Ltd | Hospitality | 2026 |
| Fish Bar Rugby Ltd | Hospitality | 2023 |
| Fisher Communications Ltd | Professional & scientific | 2025 |
| Fisian Moon Ltd | Real estate | 2020 |
| Five Rivers Financial Ltd | Professional & scientific | 2018 |
| Five Star Theatre Ltd | Arts & recreation | 2016 |
| Five-Pen Engineering Limited | Manufacturing | 1999 |
| FIVE30 Consulting Ltd | Professional & scientific | 2026 |
| Fivefer Limited | Information & communication | 2025 |
| Fixed Axis Ltd | Manufacturing | 2015 |
| FJ Home Developments Limited | Construction | 2023 |
| FKM Metals & Recycling Ltd | Water & waste | 2025 |
| FKM Property Investments Ltd | Real estate | 2026 |
| FKS Ventures Limited | Real estate | 2024 |
| Flagdawn Limited | Professional & scientific | 2004 |
| Flakkies Bites Limited | Manufacturing | 2023 |
| Flame-Lilly Investments and Consulting Ltd. | Real estate | 2017 |
| Flat OUT Solutions Limited | Transport & logistics | 2014 |
| Flecknoe Consulting Limited | Information & communication | 2006 |
| Fleet Imports Limited | Wholesale & retail | 2016 |
| Fleurier Ltd | Professional & scientific | 2024 |
| Flintastics Ltd | Other services | 2024 |
| Flippin' Bits Software Ltd | Information & communication | 2025 |
| Flora Developing Private Limited | Construction | 2024 |
| FLORIAN74 Ltd | Transport & logistics | 2016 |
| Florin Herci Ltd | Transport & logistics | 2017 |
| Flow Optimum Health Clinic Limited | Health & social care | 2020 |
| Flowers by Pauline Ltd | Wholesale & retail | 2021 |
| Flynn Plastering Limited | Construction | 2024 |
| FM Contract Cleaning Ltd | Administrative & support | 2011 |
| Fmea Expert Ltd | Professional & scientific | 2023 |
| Fone a Car (Rugby) Limited | Transport & logistics | 1982 |
| FOO Experience Limited | Professional & scientific | 2013 |
| Food and Desserts Ltd | Wholesale & retail | 2021 |
| Food Labelling Solutions Ltd | Professional & scientific | 2021 |
| Food Philosophy Ltd | Hospitality | 2024 |
| Food Solutions Consulting Limited | Health & social care | 2001 |
| FOOD4PRO Ltd | Hospitality | 2015 |
| Forcam UK Limited | Information & communication | 2011 |
| Foresight Retail UK Limited | Information & communication | 2018 |
| Forest Aviation Tours Limited | Administrative & support | 2011 |
| Forge Renovations Ltd | Construction | 2025 |
| Forme Studio Rugby Limited | Arts & recreation | 2026 |
| Formula Land (Pershore) Ltd | Real estate | 2020 |
| Forson & Co Limited | Transport & logistics | 2011 |
| Fort Knox Developments Limited | Hospitality | 2003 |
| Forte IT Ltd | Other services | 2025 |
| Fortiore Ltd. | Real estate | 2012 |
| Fortivue Limited | Wholesale & retail | 2025 |
| Fortress Windows and Conservatories LLP | | 2020 |
| Fortuna Archaeology Ltd | Administrative & support | 2025 |
| Forward Flow Logistics Ltd | Transport & logistics | 2025 |
| Forward Reach Solutions Ltd | Transport & logistics | 2022 |
| Fosse Data Holdings Ltd | Information & communication | 2023 |
| Fosse Data Systems Limited | Information & communication | 1996 |
| Fosse Homes Limited | Wholesale & retail | 2006 |
| Fosseway Vehicle Centre Ltd | Wholesale & retail | 2017 |
| Fountain Tech Limited | Professional & scientific | 2024 |
| Four Ponds Farm Ltd | Agriculture & fishing | 2021 |
| FOX Corporate Photography Limited | Professional & scientific | 2016 |
| FOX Landscapes Limited | Administrative & support | 2022 |
| Foxchurch LLP | | 2021 |
| Foxclove Developments Limited | Construction | 2001 |
| Foxley Developments Limited | Real estate | 2021 |
| Foxley Holdings Limited | Financial services | 1987 |
| Foxley Tech Limited | Construction | 2025 |
| Fppf Ltd | Professional & scientific | 2021 |
| Freddie Jenkins Racing Ltd | Arts & recreation | 2025 |
| Free for ALL Community Interest Company | Arts & recreation | 2026 |
| French Contractors LLP | | 2010 |
| Fresh & Clean Lisboa Limited | Administrative & support | 2025 |
| Fresh Seed Ltd | Administrative & support | 2019 |
| Freya Harper Ltd | Wholesale & retail | 2020 |
| Freyja Films Limited | Information & communication | 2017 |
| From the Heart Productions Ltd | Information & communication | 2009 |
| Front Back and Side Ltd | Construction | 2024 |
| Frontline Performance Engineering Ltd | Manufacturing | 2022 |
| Frost’S Firewood Limited | Agriculture & fishing | 2018 |
| Fruits of the NUT Tree Limited | Wholesale & retail | 2020 |
| FST Pantomimes & Costume Hire Ltd | Arts & recreation | 2023 |
| Fudge Pantry Wells Limited | Hospitality | 2022 |
| Fullers Solicitors Limited | Extraterritorial | 2014 |
| Fundayswithkids Limited | Professional & scientific | 2013 |
| Funfairy Limited | Arts & recreation | 2018 |
| Funkworks Limited | Wholesale & retail | 2015 |
| Funky Chickpea Limited | Hospitality | 2026 |
| Funsolve Limited | Information & communication | 2015 |
| Furlong Sensing Ltd | Information & communication | 2022 |
| Furnipubs Ltd | Hospitality | 2024 |
| Fuseco Limited | Wholesale & retail | 2023 |
| Fusion Building & Landscaping Ltd | Construction | 2024 |
| Fusion Cafe Limited | Hospitality | 2018 |
| Fusion Tuning Limited | Wholesale & retail | 2024 |
| Fusion Workforce Ltd | Administrative & support | 2026 |
| Fusioncraft Ltd | Professional & scientific | 2024 |