| Freya Marine Ltd | London | 2025 |
| Freya Risk Management Ltd | Banbridge | 2022 |
| Freyley Limited | Coventry | 2025 |
| Frgd Ltd. | Ipswich | 2024 |
| FRI Verden Media Limited | London | 2022 |
| Friarglade Limited | Bishop'S Stortford | 1998 |
| Friars Walk Newport Limited | Salford | 2013 |
| Friars Wood Property Management Company Limited | Belfast | 2005 |
| Friarsgate (Reading) Limited | Chester | 2005 |
| Friarsgate Studio Limited | Halifax | 1983 |
| Friary Gardens (Winchester) Limited | Winchester | 2003 |
| Friary Homes Limited | York | 1978 |
| Friary Motors Limited | Newbury | 2011 |
| Fribergs MEK & Anlaggning Investment Limited | London | 2023 |
| Fribergs MEK & Anlaggning Limited | London | 2023 |
| Frico Limited | Birmingham | 1959 |
| Frida & Wilde Limited | Beckenham | 2024 |
| Friday the 13TH Limited | London | 2009 |
| Fridge Spares (N.I.) Limited | Wildflower Way | 1998 |
| Fried Peppers One Ltd | London | 2013 |
| Friedenimherzen Ltd | London | 2023 |
| Friel Property Limited | Poole | 2023 |
| Friel Tech Limited | Poole | 2010 |
| Friend Global Limited | London | 2013 |
| Friend Properties Limited | Plymouth | 2015 |
| Friendly Creatives Limited | Birmingham | 2015 |
| Friendly Directorship Limited | Doncaster | 2025 |
| Friendly Ease Solution Ltd | Wellingborough | 2024 |
| Friendly Loans Limited | Bury | 2014 |
| Friends AEL Trustees Limited | York | 1980 |
| Friends Life Assurance Society Limited | York | 1963 |
| Friends Life Company Limited | York | 1996 |
| Friends of Acted (UK) | London | 2015 |
| Friends of Al'Aqsa | Leicester | 2000 |
| Friends of HSJ Community Interest Company | Swindon | 2020 |
| Friends of Milnrow Parish | Rochdale | 2009 |
| Friends of Morocco UK Association | Northolt | 2014 |
| Friends of National Heart Foundation Sylhet | London | 2015 |
| Friends of Rosslyn Chapel Limited | Edinburgh | 1996 |
| Friends of the London Jewish Hospital Limited(The) | London | 1932 |
| Friends of TTK | London | 2022 |
| Friends Provident Life Assurance Limited | York | 1963 |
| Friends Provident Pension Scheme Trustees Limited | York | 2000 |
| Friends SL Nominees Limited | London | 1957 |
| Friends SL Nominees NO2 Limited | London | 2023 |
| Friends Slua Limited | York | 1970 |
| Friends Supply Chain Co., Ltd | London | 2015 |
| Friends Team Limited | London | 2016 |
| Friends' Foreign Mission Association Trust Corporation(The) | Nailsworth | 1903 |
| Friends' House Moscow | Aylesbury | 1996 |
| Friends' Provident Life Office | York | 1981 |
| Friends' Provident Managed Pension Funds Limited | York | 1921 |
| Friesland Construction Limited | Wigan | 2007 |
| Friezland Lane 1958 Limited | Walsall | 2014 |
| Frilan Limited | London | 2021 |
| Friniti Ltd | London | 2024 |
| Friog Park Homes Limited | Estate Stoke On Trent | 2003 |
| Friolera Ltd | London | 2025 |
| Frisk I Munnen Hela Livet Limited | London | 2021 |
| Friskvardskonsulenten I Orebro Limited | London | 2009 |
| Frisor Flaneur Invest Limited | London | 2025 |
| Frisor Flaneur Limited | London | 2025 |
| Frisor Hanne Limited | London | 2023 |
| Frister and Rossmann Limited | Wrexham | 2006 |
| Friswell Technologies Limited | Coventry | 2016 |
| Fritham Court Management Company Limited | Lyndhurst | 1979 |
| Fritillaria Limited | West Drayton | 2026 |
| Frito-Lay Food (UK) Limited | Manchester | 2018 |
| Fritsch-Paul Properties Limited | Harrow On The Hill | 2003 |
| Friz Limited | Edinburgh | 2024 |
| FRL. Esmiralda's Ltd | Manchester | 2024 |
| FRM Holdings Ltd | Peterlee | 2015 |
| FRM the Garage Limited | Peterborough | 2020 |
| Frobisher House Property Limited | Uxbridge | 2013 |
| Frode Gant Invest Limited | London | 2022 |
| Frode Gant Limited | London | 2022 |
| Frodingham Coaches Limited | Newcastle Upon Tyne | 1987 |
| Froebel's Limited | London | 2010 |
| Froeya Eiendom Limited | London | 2011 |
| Froeya Service Limited | London | 2015 |
| Frog Creation Systems Limited | Maidstone | 2003 |
| Frog Publishing Limited | Cowley | 1989 |
| Frogday Ltd | London | 2007 |
| Frogeye Limited | Marlow | 1987 |
| Frogmary Farming Ltd | South Petherton | 2015 |
| Frogner Eiendom Oslo Limited | London | 2021 |
| Frogs Kitchen Limited | Berkhamsted | 2016 |
| Frogs Parquet Limited | Cambridge | 2017 |
| Frogson Waste Oils Limited | Fareham | 2006 |
| Frolic Productions Limited | London | 2002 |
| From the Anvil Limited | Llandrindod Wells | 2022 |
| From the Ground UP Ltd | Bristol | 2025 |
| Fromarsh Limited | Harrogate | 2023 |
| Frome Carpet & Flooring Centre Ltd | Frome | 2017 |
| Frome Investments (SV) Limited | London | 2018 |
| Frome Sign Company Limited | Radstock | 1987 |
| Fron Estates Ltd | Llanrwst | 2011 |
| Front Garden Design Ltd | Bristol | 2007 |
| Front ROW Clothing Limited | Livingston | 2013 |
| Front ROW Trading Limited | Newport | 2019 |