| Funsport Limited | Rhosneigr | 2020 |
| Funstation Limited | Northampton | 2004 |
| Funsters Limited | Chester | 2002 |
| Funsters Play Centre Ltd | Bretton | 2015 |
| Funtasia Design Ltd | Sittingbourne | 2014 |
| Funtasia Entertainment Limited | Yeovil | 2005 |
| Funtasia Funfairs Limited | Newry | 2000 |
| Funtasia Limited | Rotherham | 2019 |
| Funtastic (Nuneaton) Limited | Nuneaton | 2017 |
| Funtastic Functions Limited | Burntwood | 2017 |
| Funtastic Kids Play Ltd | Tonypandy | 2015 |
| Funtastic Play Ltd | Belfast | 2012 |
| Funtazia Soft Play Ltd | Blackburn | 2014 |
| Funtime Activities Limited | Bridgwater | 2011 |
| Funtime Bounce Limited | London | 2014 |
| Funtime Events Limited | Exeter | 2006 |
| Funtime Hire Limited | London | 2002 |
| Funtime Parties and Mascots Ltd | Sheffield | 2019 |
| Funtime Rides (UK) Limited | Bridgwater | 2014 |
| Funtimes Entertainments Limited | Milford Haven | 2015 |
| Funtimez Factory Ltd | Sutton-In-Ashfield | 2018 |
| Funtivity Play Village Limited | Leighton Buzzard | 2023 |
| Funward Limited | | 1986 |
| Funworld Limited | Skegness | 1977 |
| Funxion Junxion Limited | London | 2014 |
| Funzeventz Limited | Bromley | 2023 |
| Funzone (Shropshire) Limited | Whitchurch | 2009 |
| Funzone Whitchurch Ltd | Whitchurch | 2025 |
| Funzy Limited | Bradford | 2018 |
| FUR Coat NO Knickers Theatre Limited | Wellingborough | 2022 |
| FUR Puff Films Limited | Bexleyheath | 2023 |
| Furcation Ltd | Westbury | 2016 |
| Furlong Associates Bloodstock Limited | Beyton | 2005 |
| Furlong Marketing Ltd | London | 2002 |
| Furlongs Equestrian Limited | Coventry | 2014 |
| Furnace Fitness Ltd | Bishop Auckland | 2025 |
| Furnace Lakes Ltd | Kidlington | 2014 |
| Furnace Mill Fishery Limited | Wolverhampton | 2015 |
| Furnace United RFC Ltd | Furnace | 2025 |
| Furness Gliding Club Proprietary Limited(The) | Ulverston | 1936 |
| Furness Maritime Trust | Barrow-In-Furness | 1987 |
| Furness Services (Cumbria) Limited | Dalton-In-Furness | 2012 |
| Furrific Ltd | Mildenhall | 2024 |
| Furrowed Brow Limited | London | 2020 |
| Furry Leaves Design Ltd | Cambridge | 2013 |
| Furry UK Ltd | London | 2024 |
| Fursty Records Limited | Birmingham | 2019 |
| Furtastic Studios Limited | Luton | 2025 |
| Further Adventures Limited | Manchester | 1995 |
| Furthest From the Sea Music, Comedy & Arts CIC | Heanor | 2016 |
| Furtho Events Limited | Milton Keynes | 2016 |
| Fury Events Activities Limited | Bishop Auckland | 2012 |
| Fury Gym Ltd | Rotherham | 2020 |
| Fury Theatre Limited | Lincoln | 2020 |
| Fury TNT Limited | Nottingham | 2019 |
| Furyan Fitness Ltd | Preston | 2026 |
| Furze Group Ltd | London | 2024 |
| Furzedon Manor Candles and WAX Melts Ltd | Looe | 2022 |
| Fuse Community Cinema CIC | Prudhoe | 2009 |
| Fuse Creative Media Limited | Shrewsbury | 2015 |
| Fuse Fireworks Ltd | Nottinghamshire | 2007 |
| Fuse Fitness Services Ltd | Wallington | 2018 |
| Fuse Franchising Limited | High Wycombe | 2023 |
| Fuse Soccer Limited | Haywards Heath | 2023 |
| Fuse Sports Tours Limited | Haywards Heath | 2023 |
| Fuse Theatre CIC | Croydon | 2024 |
| Fuse Training Ltd | Bristol | 2024 |
| Fuse Youth Ltd | Conwy | 2018 |
| Fusible Front Limited | Glasgow | 2007 |
| Fusion 3 Fitness Limited | Stamford | 2016 |
| Fusion Boxing Limited | Sheffield | 2023 |
| Fusion Competition Limited | Huntingdon | 2026 |
| Fusion Creative Studios MCR Ltd | Altrincham | 2022 |
| Fusion Crossfit Ltd | Leigh | 2018 |
| Fusion Design Associates Limited | Bath | 2013 |
| Fusion Event Group Ltd | Stirling | 2018 |
| Fusion Event Hire Limited | Croydon | 2017 |
| Fusion Event Support Limited | London | 2010 |
| Fusion Extreme Ltd | Bridgwater | 2019 |
| Fusion FC CIC | Stoke-On-Trent | 2025 |
| Fusion Fighting System Limited | Croydon | 2017 |
| Fusion Fit Ltd | Oban | 2025 |
| Fusion Fitness (Urmston) Limited | Manchester | 2024 |
| Fusion Fitness Gym (Gosport) Limited | Gosport | 2013 |
| Fusion Fitness Gym (Portsmouth) Limited | Chipping Norton | 2023 |
| Fusion Fitness Kintore Ltd | Inverurie | 2025 |
| Fusion Fitness Studio (Gosport) Limited | Gosport | 2022 |
| Fusion Fitness Whitland Limited | Carmarthen | 2025 |
| Fusion Football Canada Limited | London | 2026 |
| Fusion Football Club Ltd | Stoke-On-Trent | 2025 |
| Fusion Futsal Ltd | West Linton | 2024 |
| Fusion Gym Ltd | Penrhyndeudraeth | 2019 |
| Fusion Gymnastics and Trampoline Ltd | Bridgend | 2019 |
| Fusion Gymnastics Ltd | Surbiton | 2025 |
| Fusion Home Fitness Limited | Poole | 2023 |
| Fusion Kung FU Ltd | Norwich | 2026 |
| Fusion Lifestyle | London | 2005 |
| Fusion Martial Arts Limited | Leigh | 2025 |
| Fusion Motorsport International Ltd | Huntingdon | 2026 |
| Fusion Motorsport Limited | Huntingdon | 2010 |