| Cairngorm Weightlifting Club CIC | Grantown-On-Spey | 2024 |
| Cairns Boxing Ltd | Rotherham | 2022 |
| Cairns Topco Limited | Ongar | 2026 |
| Caistor Arts and Heritage Charity | Market Rasen | 2014 |
| Caistor Equestrian Centre Ltd | Lincolnshire | 2007 |
| Caistor Heritage Trust | Caistor | 2011 |
| Caistor Quad Adventure Limited | Market Rasen | 2006 |
| Caithness Agricultural Society | Thurso | 2006 |
| Caithness Archaeological Trust Limited | Dunbeath | 2013 |
| Caithness Autocross Club Ltd | Thurso | 2015 |
| Caithness Bouncy Castles Ltd | Wick | 2023 |
| Caithness Car Club Limited | Wick | 1984 |
| Caithness Motocross Club Ltd | Halkirk | 2010 |
| Caitlin Abra Ltd | Hull | 2025 |
| Caitlin Foord Limited | Brierley Hill | 2025 |
| Caitlinmccann Ltd | London | 2014 |
| CAJ Coaching Ltd | Bedford | 2025 |
| CAJ Productions Limited | Liverpool | 2025 |
| Cajf Health Ltd | Glasgow | 2024 |
| Cake Artist Management Limited | London | 2011 |
| Cake Records Limited | London | 2010 |
| Cake Studios Design Ltd | London | 2024 |
| Cakebread Workshop Ltd | Manchester | 2018 |
| Cakemeister Productions Limited | Dursley | 2018 |
| Cakencrumble Ltd | Nelson | 2021 |
| Cakes & Comics Limited | Sheffield | 2014 |
| Cakes Dance Studio Ltd | London | 2021 |
| Cakes on Stage Ltd | London | 2019 |
| Cakesetc Ltd | Ilford | 2018 |
| CAL Mccrystal Limited | Bexley | 2012 |
| Cala Sona Limited | Leiston | 2003 |
| Calagua Ltd | Glasgow | 2025 |
| Calamari Royale Ltd | Kenilworth | 2006 |
| Calamity Jane Limited | Sutton | 2014 |
| Calamity UK Tour Ltd | Sutton | 2023 |
| Calandra Promotions Ltd | Hereford | 2018 |
| Calatagan Polo Limited | Midhurst | 2024 |
| Calati Performance Limited | Cardiff | 2019 |
| Calbourne Water Mill Heritage CIC | Newport | 2026 |
| Calcio Events Ltd | Glasgow | 2026 |
| Calcio Football Centre Ltd | Leeds | 2020 |
| Calco Athletics Limited | Ilford | 2017 |
| Calcot Golf Club Limited | Bath Road,Calcot, | 1929 |
| Caldbeck Multi Purpose Tennis Court Association | Wigton | 2018 |
| Calder Community Squash Community Interest Company | Hebden Bridge | 2021 |
| Calder Farm Services Limited | Wakefield | 2024 |
| Calderbrick Ltd | Brighouse | 2014 |
| Calderdale Community Stadium Limited | Huddersfield | 2025 |
| Calderdale Industrial Museum Association | Halifax | 2013 |
| Calderfields Golf Academy Limited | West Midlands | 1981 |
| Caldershaw Flora | Rochdale | 2022 |
| Caldicot Rugby Limited | Caldicot | 2018 |
| Caldwell Golf Club Limited | Glasgow | 1924 |
| Caldy Golf Club,Limited(The) | Wirral | 1924 |
| Caledon Football Ltd | Livingston | 2026 |
| Caledonia Art Advisory Limited | London | 2021 |
| Caledonia Basketball Ltd | Glasgow | 2022 |
| Caledonia Competitions Ltd | Glasgow | 2023 |
| Caledonia Creations Limited | London | 2023 |
| Caledonia Equestrian Ltd | Ipswich | 2020 |
| Caledonia Film Studios Limited | Glasgow | 2018 |
| Caledonia Gladiators Basketball Ltd | Glasgow | 2022 |
| Caledonia Gym Ltd | Carnoustie | 2019 |
| Caledonia Health & Fitness (Scotland) Ltd | Aberdeen | 2017 |
| Caledonia Sports Surfaces Ltd | Arbroath | 2023 |
| Caledonian Cinemas Limited | Inverness | 2003 |
| Caledonian Classic & Historic Motor Sport Club Ltd. | Bo'Ness | 1998 |
| Caledonian Concepts (Scotland) Limited | Inverness | 2006 |
| Caledonian Health & Fitness Limited | Glasgow | 2012 |
| Caledonian Juggling CIC | Kinross | 2025 |
| Caledonian Opera Company | Ellon | 1992 |
| Caledonian Snooker Ltd | Edinburgh | 2010 |
| Caledonian Taekwondo Limited | Glasgow | 2007 |
| Caledonian Tours Ltd | London | 2024 |
| Caledonian Transport Heritage Limited | Perth | 2021 |
| Caledonian Transport Heritage Trading Limited | Perth | 2021 |
| Cali Fitness UK Limited | Andover | 2024 |
| Cali to the Crowd Ltd | London | 2024 |
| Cali-Club Ltd | Black Notley | 2017 |
| Calibar Events Limited | Slough | 2009 |
| Caliber Club Ltd | London | 2024 |
| Caliber Fast Serve Limited | Leigh On Sea | 2008 |
| Calibre Fitness Ltd | Christchurch | 2019 |
| Calibre Inc. Limited | Wimborne | 2016 |
| Calico London Limited | London | 2025 |
| Calico Soul Band Ltd | Sevenoaks | 2025 |
| California Chalet & Touring Park Ltd | Bracknell | 2014 |
| California Fitness Ltd | Seaton | 2020 |
| California Gym Ltd | Seaton | 2026 |
| California Health Ltd | Taunton | 2018 |
| Calite Fitness Ltd | Thetford | 2025 |
| Calixta Design Ltd | Carrickfergus | 2025 |
| Call a KAB Ltd | Loughborough | 2024 |
| Call ME Malcolm Ltd | London | 2024 |
| Call ME Mother Ltd | London | 2020 |
| Call of the Wild Productions Ltd | Alton | 2022 |
| Call of the Wild ZOO Limited | Chelmsford | 2021 |
| Call Yourself an Artist CIC | Durham | 2023 |
| Callaghanium | London | 2024 |
| Callan Rydz Limited | Stourbridge | 2021 |