| Frances M Fitness Limited | London | 2022 |
| Frances Macdonald Ltd | Tarbert | 2005 |
| Frances White Limited | Whitland | 2016 |
| Francesca Burns Limited | London | 2015 |
| Francesca Cook Design Limited | Hove | 2017 |
| Francesca DE Bassa Ltd | London | 2018 |
| Francesca Mills Limited | Newcastle Under Lyme | 2021 |
| Francesca Moody Productions Limited | London | 2018 |
| Francesca the Method Ltd | London | 2009 |
| Francesca's Customs Limited | Halesowen | 2013 |
| Franceschi Music Limited | Barnet | 2014 |
| Francesco Gregorace Limited | Swindon | 2003 |
| Francesco Napoli Ltd | Lytham St. Annes | 2017 |
| Franchise Marketing Limited | Portsmouth | 1988 |
| Francis Arts & Culture Management Ltd | London | 2025 |
| Francis Fotos UK Limited | West Bromwich | 2023 |
| Francis Hamel Limited | Bicester | 2014 |
| Francis Masterman Limited | Sunderland | 2018 |
| Francis Media Ltd | London | 2019 |
| Francis Norton Limited | Bolton | 2009 |
| Francis O'Connor Design Ltd | London | 2017 |
| Francis Toohey Conservation Limited | London | 2024 |
| Francisca Amoah Ministries CIC | Wiltshire | 2025 |
| Francisco Studio Limited | Lewes | 2022 |
| Franco Black Ltd | London | 2026 |
| Franco's Boxing Club Ltd | Gainsborough | 2022 |
| Francois Industries Limited | London | 2012 |
| Frangipani SUP Limited | Maldon | 2013 |
| Frank & Nancy Ltd | Abingdon | 2023 |
| Frank and Jane Limited | London | 2021 |
| Frank Bird Promotions Ltd | Peterborough | 2024 |
| Frank Bond Trust Limited(The) | Bishops Hull | 1983 |
| Frank Booth & Sons Limited | Tenby | 1961 |
| Frank Buglioni Limited | London | 2012 |
| Frank Deasy Limited | Glasgow | 2001 |
| Frank Entertainment Limited | Stockport | 2018 |
| Frank Fitness Limited | Swindon | 2021 |
| Frank Houlgate at Waterfront Golf Limited | Barnsley | 2014 |
| Frank INK Tattoo Limited | Coleford | 2021 |
| Frank Nobel Limited | London | 2016 |
| Frank Nuttall Sports Management and Consulting Limited | Pontyclun | 2001 |
| Frank Quitely Limited | Glasgow | 2005 |
| Frank Xerox AI Limited | London | 2025 |
| Frank's House Ltd | Paisley | 2019 |
| Franked Ramsgate Ltd | Kent | 2025 |
| Frankel & Harper Productions Ltd | West Drayton | 2020 |
| Frankenfest C.I.C. | Christchurch | 2019 |
| Frankey Fitness Limited | Barnard Castle | 2026 |
| Frankie & Lola's Ltd | Glasgow | 2013 |
| Frankie and Friends Early Years Catering Limited | Alcester | 2015 |
| Frankie Brown Creative Limited | Hounslow | 2012 |
| Frankie Fitness Ltd | Barford Road | 2026 |
| Frankie IS a Nerd Ltd | Stowmarket | 2018 |
| Frankie Knuckles Boxing Academy Ltd | Liverpool | 2019 |
| Frankie Stew and Harvey Gunn Ltd | Brighton | 2017 |
| Frankie Stringer Boxing Limited | Bootle | 2023 |
| Frankie the Concert Limited | Cannock | 2021 |
| Frankie's Paint-It Pottery Limited | Liverpool | 2018 |
| Frankland Squash Matters Limited | Esher | 2004 |
| Franklee Arts Limited | St. Albans | 2026 |
| Frankleigh Ltd | Hove | 2015 |
| Franklin & Greatorex Limited | Hemel Hempstead | 2014 |
| Franklin Entertainment Ltd | Cardiff | 2025 |
| Franklin Health & Fitness Ltd | London | 2021 |
| Franklin Shepard Inc Ltd | London | 2023 |
| Frankly, Green & Webb Ltd | Sheffield | 2010 |
| Frankophone Limited | Bromley | 2026 |
| Franks Pool Club Limited | St Albans | 2015 |
| Franky Creative Ltd | London | 2025 |
| Frannock Sports Agency Ltd | Gillingham | 2025 |
| Frantastic Ltd | London | 2022 |
| Frantic | Cornwall | 2000 |
| Frantic London Ltd | Ilford | 2024 |
| Frantic Theatre Company Ltd | London | 1994 |
| Franz Bergman Ltd | London | 2024 |
| Franzi & Kofler Arte Ltd | Old Hatfield | 2015 |
| Fraser Ayres Limited | London | 2014 |
| Fraser Brown Limited | Bellshill | 2016 |
| Fraser Capital Investments Limited | Bishop'S Stortford | 2017 |
| Fraser Capital Management Limited | Liverpool | 2004 |
| Fraser Dunlop Golf Limited | Edinburgh | 2019 |
| Fraser Fenwick Racing Limited | Lincoln | 2025 |
| Fraser Field Sports Limited | Glasgow | 2004 |
| Fraser Films Ltd | Dunmow | 2020 |
| Fraser Grove Limited | Formby | 2014 |
| Fraser James Rice Ltd | Edinburgh | 2014 |
| Fraser Muggeridge Studio Limited | London | 2005 |
| Fraser Randall Limited | London | 2018 |
| FRASER52 Limited | London | 2012 |
| Fraserburgh Fitness Centre | Fraserburgh | 2004 |
| Fraserburgh Football Club Limited | Fraserburgh | 1998 |
| Fraserburgh Heritage Society Ltd | Fraserburgh | 2012 |
| Fraserburgh Indoor Leisure Centre | Fraserburgh | 1989 |
| Frau Wagener Limited | London | 2016 |
| Fraudway Productions Ltd | Harlow | 2025 |
| Fray Studio Ltd | Southwark | 2015 |
| Frayed Film Limited | London | 2024 |
| Frazdom Limited | London | 2003 |
| Frazer Clarke Management Ltd | Burton-On-Trent | 2012 |
| Frazer Swim School Ltd | Windermere | 2022 |