| FPM (Plymouth) Ltd | Real estate | 2023 |
| Fralana Limited | Real estate | 2015 |
| Frances Haynes Limited | Professional & scientific | 2013 |
| Francis Avenue Properties Limited | Real estate | 1980 |
| Francis Court (Tavistock) Management Company Limited | Households | 2019 |
| Francis Drake Charters Limited | Professional & scientific | 2011 |
| Francis Rentals and Renovations Ltd | Real estate | 2025 |
| Francis Services Ltd | Professional & scientific | 2024 |
| Francis Stone Walling & Patios Ltd | Construction | 2023 |
| Francis Stuart Group Limited | Financial services | 2024 |
| Francis Stuart Guaranteed Ltd | Real estate | 2021 |
| Francis Stuart Lettings Ltd | Real estate | 2014 |
| Francis Stuart Maintenance Limited | Construction | 2020 |
| Francis Stuart Property Consultancy Ltd | Construction | 2024 |
| Francis Stuart Property Services Ltd | Other services | 2018 |
| Francis Stuart WDC Limited | Real estate | 2022 |
| Frank Gartland Limited | Professional & scientific | 2014 |
| Frankcontent Ltd | Information & communication | 2017 |
| Frankies Superheroes Community Interest Company | Wholesale & retail | 2022 |
| Franklins Fires Ltd | Construction | 2019 |
| Fraser Bell Homes Ltd | Real estate | 2021 |
| Fraser Hammerton Group Holdings Ltd | Extraterritorial | 2017 |
| Fraser Letting Services Ltd | Real estate | 2012 |
| Fraser MAY Ltd | Real estate | 2025 |
| Fraser ST James Property Holdings Limited | Financial services | 2016 |
| Fraser ST James Property Investment & Lettings Limited | Households | 2015 |
| Fraud Defence First Limited | Administrative & support | 2020 |
| Frayne Construction Services Limited | Construction | 2015 |
| Freckle Lash, Brow & Beauty Supplies Ltd | Wholesale & retail | 2019 |
| Freckle Productions Ltd | Administrative & support | 2008 |
| Free Collective Ltd | Information & communication | 2021 |
| Free Radical Creations Community Interest Company | Health & social care | 2019 |
| Freedom Creative Studio Ltd | Professional & scientific | 2021 |
| Freedom Fields Flats Management Company Limited | Households | 2000 |
| Freedom Reign Therapy Community Interest Company | Health & social care | 2016 |
| Freedom Ventures (SW) Ltd | Real estate | 2023 |
| Freedom Villas Limited | Households | 2025 |
| Freeflow Plumbing and Heating Ltd | Construction | 2016 |
| Freehold Management Services Limited | Real estate | 2007 |
| Freehold Management Services Plymouth Ltd | Real estate | 2020 |
| Freeholders of 226 Finchley Road Limited | Households | 2017 |
| Freemans Flat Management Limited | Households | 1999 |
| Freemans Wharf Management Company Limited | Households | 1999 |
| Freemantle Gardens Limited | Households | 1998 |
| Freeway Projects Limited | Information & communication | 2007 |
| Fregaforce Limited | Information & communication | 2025 |
| Freight Waves UK Ltd | Transport & logistics | 2025 |
| Fremac Developments Limited | Construction | 2018 |
| Fremac Limited | Professional & scientific | 2008 |
| Fremoco Limited | Real estate | 2025 |
| French & Williams Limited | Wholesale & retail | 2000 |
| Fresh Air Studios Ltd | Information & communication | 2002 |
| Fresh Appointments Limited | Administrative & support | 2010 |
| Fresh Barbers (SW) Ltd | Other services | 2021 |
| Fresh Fundraising Ltd | Professional & scientific | 2019 |
| Fresh Market Research Ltd | Professional & scientific | 2023 |
| Fresh to LET Ltd | Real estate | 2025 |
| Freshstartcleaningsw Limited | Administrative & support | 2026 |
| Frianon Investments Limited | Real estate | 1998 |
| Friars Lane Management Company Limited | Households | 2008 |
| Friary Court (Plymouth) NO. 6 Management Company Limited | Households | 1993 |
| Friary Court (Plymouth) NO.1 Management Company Limited | Households | 1992 |
| Friary Court (Plymouth) NO.10 Management Company Limited | Households | 1994 |
| Friary Court (Plymouth) NO.11 Management Company Limited | Households | 1994 |
| Friary Court (Plymouth) NO.2 Management Company Limited | Households | 1992 |
| Friary Court (Plymouth) NO.3 Management Company Limited | Households | 1992 |
| Friary Court (Plymouth) NO.4 Management Company Limited | Households | 1993 |
| Friary Court (Plymouth) NO.7 Management Company Limited | Households | 1993 |
| Friary Court (Plymouth) NO.8 Management Company Limited | Households | 1993 |
| Friary Court (Plymouth) NO.9 Management Company Limited | Households | 1994 |
| Friary Mill Bakery Limited | Manufacturing | 2002 |
| Friary Properties (Devon) Limited | Real estate | 2019 |
| Friend Properties Limited | Extraterritorial | 2015 |
| Friendly Faces (UK) Ltd | Health & social care | 2014 |
| Friends and Families of Special Children Ltd. | Health & social care | 2010 |
| Friends of Plympton ST Maurice Guildhall | Arts & recreation | 2015 |
| Friendship Engineering Ltd | Professional & scientific | 2008 |
| Frites Limited | Hospitality | 2011 |
| Frog Box Limited | Administrative & support | 2008 |
| Frog Quality Homes Limited | Real estate | 1998 |
| Froggy Properties Limited | Real estate | 2026 |
| Front Cover Competitions Ltd | Information & communication | 2023 |
| Front Office Compliance Limited | Information & communication | 2016 |
| Frontgrant Residents Management Limited | Households | 1991 |
| Frontier Futures Ltd | Financial services | 2023 |
| Frontier Staffing Limited | Administrative & support | 2023 |
| Fruition Computing Ltd | Wholesale & retail | 2025 |
| Fruity Roots Ltd | Wholesale & retail | 2020 |
| Fry's Dairy Bar Ltd | Hospitality | 2018 |
| Fry's Nursery Limited | Transport & logistics | 2001 |
| Fterikoudi Limited | Construction | 2025 |
| FTS Publishing Limited | Real estate | 2003 |
| Fu:Dbase Global Limited | Wholesale & retail | 2021 |
| Fucms Ltd | Professional & scientific | 2022 |
| Fuel Accountancy Services Ltd | Professional & scientific | 2018 |
| Fuel Affiliate Ltd | Information & communication | 2019 |
| Fuel and Grocery Ltd | Wholesale & retail | 2021 |
| Fuel Free Generators Ltd | Wholesale & retail | 2025 |
| Fuel Holdings Ltd | Professional & scientific | 2018 |
| Fuel Immersive Limited | Professional & scientific | 2020 |