| Caddiematch Ltd | Cobham | 2025 |
| Caddies Crawley Ltd | Southend-On-Sea | 2021 |
| Caddies Leisure Ltd | Southend-On-Sea | 2022 |
| Caddington FC Ltd | Caddington | 2025 |
| Caddington Golf Club Limited | Wembley | 2007 |
| Caddy & Cask Ltd | Dornoch | 2025 |
| Caddy Club Golf Ltd | Solihull | 2019 |
| Caddy Clubhouse Ltd | Sheffield | 2024 |
| Caddy Shack Golf Limited | Durham | 2021 |
| Caddycom Limited | Knutsford | 2010 |
| Cade & Macaskill Ltd | Edinburgh | 2025 |
| Cadell Bros Limited | Stoke On Trent | 2019 |
| Cademon Sport and Fitness Limited | Brierley Hill | 2015 |
| Cademy Football Club CIC | Iver | 2025 |
| Cadence CC Ltd | Polegate | 2020 |
| Cadence Community CIC | Cottingham | 2026 |
| Cadence Event Solutions Ltd | Poole | 2024 |
| Cadence Indoor Cycling Ltd | London | 2023 |
| Cadence Performance Limited | London | 2012 |
| Cadenza Eventing Limited | Nottingham | 2002 |
| Cadenza Singing School Ltd | Coventry | 2021 |
| Cadimac Limited | Largs | 2011 |
| Cadman Sporting Limited | Northampton | 2017 |
| Cadmans Leisure Centres Limited | Stoke-On-Trent | 1981 |
| Cadney CUM Howsham Village Hall and Park Committee | Market Rasen | 2006 |
| Cadogan Gallery Ltd | London | 1981 |
| Cadogan Hall Limited | London | 2004 |
| Cadoxton Bowling Club Ltd. | Barry | 2020 |
| Cadoxton Community Leisure Limited | Neath | 2019 |
| Cadre Outdoor Limited | Altrincham | 2024 |
| Cads South Yorkshire Limited | Sheffield | 2012 |
| Cadspeed Racing Limited | Farnham | 2015 |
| Cadzow Club Ltd | East Kilbride | 2022 |
| CAE Agency Ltd | Southwick | 2015 |
| CAE DAI 1950'S Museum Limited | Denbigh | 2024 |
| CAE Fidelity Ltd | Surbiton | 2019 |
| CAE William Sports Company Limited | Swansea | 1997 |
| Caeau Hapus Limited | Caldicot | 2021 |
| Caelum Films Limited | Erith | 2019 |
| Caerau ELY Football Club Ltd | Newport | 2026 |
| Caerau Vale Trampoline Club Ltd | Penarth | 2024 |
| Caereinion Old Boys Rugby Association Limited | Meifod | 2007 |
| Caerfai Bay Limited | Haverfordwest | 2002 |
| Caerleon A.F.C Youth CIC | Newport | 2024 |
| Caernarvonshire & Anglesey Motor Club Limited | Llanfairpwllgwyngyll | 1984 |
| Caerphilly Miners Centre for the Community | Caerphilly | 2011 |
| Caerphilly Rugby Limited | Caerphilly | 2023 |
| Caersws Bike Park Limited | Shrewsbury | 2023 |
| Caersws Football Club Limited | Caersws | 2025 |
| Caerwent Playing Fields Association Limited | Caldicot | 2008 |
| Caesar HOY Company Limited | Lee | 2015 |
| Caesar INK Ltd | Nottingham | 2023 |
| CAF PMA Limited | Radcliffe | 2005 |
| Cafe Ceramica Limited | Sutton Coldfield | 2003 |
| Cafe Craft Limited | Smethwick | 2014 |
| Cafe Ride Group Ltd | London | 2025 |
| Cafe Writers Ltd | King'S Lynn | 2006 |
| Caferacing Limited | Newmarket | 2002 |
| Cafesidemtb CIC | Exeter | 2024 |
| Caffeine 88 Limited | Derby | 2010 |
| Caffell Management Services Limited | Near Stroud | 1979 |
| Cafune Limited | London | 2016 |
| CAG Adventures Ltd | Killin | 2020 |
| CAG Media Ltd | London | 2015 |
| Cage Championship Series Ltd | Nottingham | 2025 |
| Cage Conflict Ltd | Lisburn | 2021 |
| Cage Cricket Play C.I.C. | Portsmouth | 2018 |
| Cage Gladiators Ireland Ltd | Newtownabbey | 2019 |
| Cage Music Limited | London | 1983 |
| Cage Services Limited | Hampshire | 2007 |
| Caged Butterfly Limited | Sheffield | 2006 |
| Caged Film Ltd | London | 2012 |
| Caged MMA UK Ltd | Weston-Super-Mare | 2026 |
| Caged Steel Limited | West Yorkshire | 2005 |
| Caged Steel MMA Limited | Castleford | 2024 |
| Caged Theatre Ltd | London | 2025 |
| Cagefit Gyms Ltd | Watford | 2019 |
| CAH Sailing Ltd | Richmond | 2013 |
| Cahill Leisure Limited | Preston | 2009 |
| Cahoots Entertainment Limited | London | 2024 |
| Cahoots NI Ltd | Belfast | 2001 |
| Cahoots Theatre Company Limited | London | 1999 |
| Cahusac Limited | Borehamwood | 2023 |
| CAI Watson Limited | Canvey Island | 2023 |
| Caiger Galleries Ltd | Epsom | 2013 |
| Cailie Dimmock Ltd | Horsham | 2022 |
| Cain's Amusements Limited | Canterbury | 2003 |
| Cainhoe Wood Driving Range Limited | Leighton Buzzard | 2020 |
| Cainscross Rugby Football Club | Stroud | 2012 |
| Caio Tennis Ltd | London | 2023 |
| Cairda Limited | Bristol | 2025 |
| Cairdeas Ltd | Exmouth | 2025 |
| Cairn Arts Ltd | Dingwall | 2025 |
| Cairn Competitions Limited | Keith | 2024 |
| Cairn MOR Creative Ltd | Ewell | 2015 |
| Cairn Union Ltd | Edinburgh | 2021 |
| Cairndhu Golf Club Limited | Larne Co Antrim | 1956 |
| Cairngorm Events Ltd | Paisley | 2024 |
| Cairngorm Mountain (Scotland) Limited | Inverness | 2018 |
| Cairngorm Mountain Trust Ltd. | Aviemore | 1957 |