| Find & Finance Limited | Wholesale & retail | 2017 |
| Fine EYE Photography Ltd | Professional & scientific | 2023 |
| Fine EYE Property Solutions Ltd | Real estate | 2023 |
| Fineline Training Services Limited | Education | 2016 |
| Finning (UK) Ltd. | Wholesale & retail | 1941 |
| Finning Power Rental Limited | Administrative & support | 2002 |
| Finning Power Rental LP | | 2003 |
| Fire-Direct Ltd | Public administration | 2003 |
| Firebyrd Limited | Professional & scientific | 2017 |
| First Call Property Investments Limited | Real estate | 2025 |
| First Call Property Service West Midlands Limited | Construction | 2022 |
| First Choice Group 1999 Limited | Financial services | 2014 |
| First Choice Group Training Limited | Education | 2014 |
| First Class Home Improvements Ltd | Construction | 2020 |
| First Environment Limited | Professional & scientific | 1996 |
| First Impressions (2010) Limited | Manufacturing | 2010 |
| First Motorway Services Limited | Hospitality | 1995 |
| First Rate Electrical Ltd | Construction | 2013 |
| First to AID YOU Ltd | Health & social care | 2017 |
| Fishfinger Properties Ltd | Real estate | 2026 |
| Fishley Park Leisure Ltd | Hospitality | 2003 |
| FIT2BOX Ltd | Arts & recreation | 2015 |
| Fitminds Community Ltd | Other services | 2020 |
| Fitting Solutions (Midlands) Limited | Construction | 2005 |
| Five Computing Limited | Information & communication | 2007 |
| Five Property and Maintenance Ltd | Construction | 2014 |
| Fives Garage and Autobody Repairs Limited | Wholesale & retail | 2016 |
| Fives Property Management Limited | Real estate | 2016 |
| FIX & Glaze Limited | Construction | 2018 |
| FIX Assets Ltd | Construction | 2025 |
| Fixed Costs Ltd | Information & communication | 2025 |
| FL Windows and Doors Ltd | Other services | 2016 |
| Flat Rolled Products Limited | Administrative & support | 2004 |
| Fleek Beauty Ltd | Other services | 2021 |
| Fleetwood Building Services Limited | Construction | 2008 |
| Fletchers Dance Academy Ltd | Education | 2020 |
| Flex Personnel Ltd | Administrative & support | 2024 |
| Flex Recruitment Limited | Administrative & support | 2025 |
| Flightline Support Limited | Manufacturing | 1982 |
| Flint Property Limited | Real estate | 2011 |
| Flintlock Publishing Ltd | Information & communication | 2025 |
| Flip N Drip Ltd | Wholesale & retail | 2025 |
| Flofuel Support Ltd | Manufacturing | 2015 |
| Flofuel Training Ltd | Other services | 2015 |
| Floors Walls & Ceilings Ltd | Construction | 2025 |
| Floorwise Limited | Construction | 2025 |
| Flourish Holidays LLP | | 2022 |
| Flowe Ltd | Financial services | 2026 |
| Flowx Advisory Ltd | Professional & scientific | 2020 |
| Flowx Consultancy Ltd | Professional & scientific | 2023 |
| Flue Systems Holdings Limited | Financial services | 2018 |
| Flue Systems Limited | Administrative & support | 2007 |
| Fluid Transfer Group Limited | Other services | 2015 |
| Fluid Transfer International Limited | Manufacturing | 1998 |
| Focus Golf Ltd | Arts & recreation | 2013 |
| Fonefit (Midlands) Ltd | Information & communication | 2023 |
| Food Paradise BC Limited | Hospitality | 2023 |
| Football FUN Factory (Community 095) Ltd | Arts & recreation | 2023 |
| Forefront Developments Limited | Construction | 2025 |
| Forefront Fireworks Limited | Arts & recreation | 2025 |
| Foreman and Daughters Ltd | Real estate | 2022 |
| Forestry Landscaping Limited | Administrative & support | 2024 |
| FORKLIFTS4U Ltd | Other services | 2021 |
| Forkway (Hire) Limited | Extraterritorial | 1966 |
| Forkway Group Limited | Professional & scientific | 1995 |
| Forkway Limited | Wholesale & retail | 1964 |
| Fortyfour Property Solutions Limited | Construction | 2025 |
| Fosnic Ltd | Construction | 2021 |
| Foster Bloodstock Ltd | Agriculture & fishing | 2024 |
| Foster Development Group Ltd | Real estate | 2018 |
| Foster Investment Group Ltd | Administrative & support | 2021 |
| Foster, Green + Brown Limited | Construction | 2019 |
| Four Ashes Events Ltd | Hospitality | 2019 |
| Four Crosses Events Ltd | Hospitality | 2024 |
| Four Oaks Farm Limited | Agriculture & fishing | 2016 |
| Four Oaks Services Limited | Transport & logistics | 2014 |
| Fowlers Grass Cutting Services Limited | Administrative & support | 2023 |
| FOX Grove Creations Limited | Information & communication | 2020 |
| Foxglove Homes (Building Services) Ltd | Construction | 2025 |
| Francis Court Cannock Limited | Real estate | 2003 |
| Frankie the Concert Limited | Arts & recreation | 2021 |
| Fransen Investments Limited | Financial services | 2017 |
| Fred Pritchard Real Estate Limited | Real estate | 2011 |
| Freight Management Solutions Ltd | Transport & logistics | 2020 |
| French Connection Photography Limited | Other services | 2007 |
| Fresh Shoots Ltd | Information & communication | 2025 |
| Fridge Spares Wholesale Ltd | Wholesale & retail | 1984 |
| Fridge Systems Limited | Construction | 1994 |
| Front Foot Coaching Ltd | Arts & recreation | 2023 |
| FSK Cars Limited | Wholesale & retail | 2019 |
| FSK Transporter Limited | Transport & logistics | 2024 |
| FTS Mechanical and Electrical Services Limited | Construction | 2008 |
| Fuel Conservation Services Limited | Manufacturing | 1981 |
| Fuel UP Energy Ltd | Wholesale & retail | 2025 |
| Fuelled by Summer Ltd | Education | 2026 |
| Functional Performance Ltd | Other services | 2022 |
| Furby Forks Limited | Construction | 2014 |
| Furever Fields | Agriculture & fishing | 2025 |
| Furhat Cakes Walsall Ltd | Manufacturing | 2025 |
| Furry Friends Wonderland Dog Rescue Ltd | Other services | 2025 |