| Champions Community Sport and Health CIC | Leeds | 2019 |
| Champions Flattrack School Ltd | Market Rasen | 2025 |
| Champions Football Club Limited | London | 2025 |
| Champions for Tomorrow Limited | Andover | 2025 |
| Champions Golf Tour Ltd | Eastleigh | 2020 |
| Champions Gym Ltd | Truro | 2022 |
| Champions Kart Academy Ltd | London | 2025 |
| Champions League Football Limited | Chapelhall | 1996 |
| Champions Live Ltd | Bath | 2024 |
| Champions Martial Arts CIC | Brentford | 2025 |
| Champions of Change Football Ltd | Sudbury | 2025 |
| Champions of the Future (Europe) Ltd | Pudsey | 2024 |
| Champions Path Limited | Cobham | 2025 |
| Champions Picks Ltd | Southampton | 2026 |
| Champions Sports Academy Limited | Larne | 2012 |
| Champions Theatre Arts Ltd | Dartford | 2021 |
| Champions Training Academy Ltd | Bournemouth | 2023 |
| Championship Mini Golf (New Brighton) Limited | Bromborough | 2013 |
| Championship Miniaturegolf Limited | Bromborough | 2006 |
| Championship Structures Ltd | Chatteris | 2019 |
| Champneys Forest Mere Limited | London | 1995 |
| Champneys Tring Limited | London | 1949 |
| Champs Entertainment Ltd | London | 2025 |
| Champs Gym Ltd | Leicester | 2025 |
| Champs London CIC | London | 2025 |
| Champs United FC Ltd | London | 2025 |
| Champs Within Limited | Sutton | 2021 |
| Chan CAM Limited | Hapenden | 2017 |
| Chanakira Ltd | London | 2023 |
| Chanani Saraswati Ltd | London | 2024 |
| Chance Camp Limited | Cockermouth | 2017 |
| Chance Champs Ltd | Brierley Hill | 2024 |
| Chance Chasers Ltd | London | 2025 |
| Chance Competitions Ltd | Perth | 2024 |
| Chance Giveaways Ltd | Huddersfield | 2025 |
| Chance Holdings Limited | Tadley | 1980 |
| Chance Projects UK Limited | Ilford | 2022 |
| Chance to Shine Foundation Ltd | London | 2007 |
| Chanced UK Ltd | West Calder | 2025 |
| Chancenumber Limited | Oakham | 1992 |
| Chancing Life Management Ltd | London | 2025 |
| Chand ALI Khan Qawwal & Party Ltd | Birmingham | 2026 |
| Chandelier Events Limited | London | 2018 |
| Chandler Creative Ltd | Leeds | 2025 |
| Chandler Motorsport Ltd | Chelmsford | 2024 |
| Chandler Sports Limited | Broxburn | 2011 |
| Chandlers Ford Gym Ltd | Southampton | 2026 |
| Chandler’S Creations Limited | Stafford | 2025 |
| Chandos Lawn Tennis Club Limited(The) | London | 1934 |
| Chandos Music Limited | Colchester | 1965 |
| Chandos Records Limited | Colchester | 1979 |
| Chandos Symphony Orchestra Administration Limited | Stourport On Severn | 2024 |
| Chanelle Art Ltd | Edmonton | 2024 |
| Chanelle Franklyn School of Performance Ltd | London | 2017 |
| Chanelle Jaye Entertainment Agency Limited | Lincolnshire | 2004 |
| Chaneybhlorkah Ltd | Liverpool | 2025 |
| Chang LI Limited | St. Austell | 2005 |
| Chang Phueak Gym (Boston) Ltd | Boston | 2024 |
| Chang Sheng Fitness Limited | Croydon | 2015 |
| Change Gym Ltd | Padiham | 2021 |
| Change Momentum Ltd | Verwood | 2022 |
| Change the Ending Ltd | Forres | 2026 |
| Change Your Luck Ltd | Newry | 2024 |
| Changebox Limited | London | 2007 |
| Changed by Ltd | Livingston | 2022 |
| Changethegame (CTG) Limited | London | 2016 |
| Changing Community Stories CIC | Cradley Heath | 2025 |
| Changing Elements CIC | Maldon | 2024 |
| Changing Waters Limited | London | 2024 |
| Channa K Limited | London | 2023 |
| Channel 11 Limited | Washington | 2020 |
| Channel Adventure C.I.C. | Minehead | 2014 |
| Channel ALT Ltd | London | 2018 |
| Channel B Productions Ltd | London | 2019 |
| Channel Music Limited | London | 1969 |
| Channel Sailing Club Limited | Little Bookham | 1982 |
| Channel Swimming Association Limited | Ipswich | 1999 |
| Channel Theatre Productions Limited | Sturminster Newton | 2009 |
| Channel Twelve Ltd | Potters Bar | 2020 |
| Channel UK Events CIC | Minehead | 2018 |
| Channel X Limited | Sherborne | 1994 |
| Channel X North Ltd. | Sherborne | 2005 |
| Chanon Financial Services Limited | Kent | 1985 |
| Chant Music Limited | London | 1983 |
| Chantage | Cambridge | 2006 |
| Chantal Lipscombe Art Ltd | Royston | 2024 |
| Chante Media Ltd | London, | 2022 |
| Chantel Maria Services Limited | Northampton | 2023 |
| Chantelle Scott Coaching Ltd | Billingham | 2025 |
| Chanticleer Presentations Limited | London | 1968 |
| Chantilly Thoroughbreds Ltd | Hull | 2024 |
| Chantlings Ltd | Altrincham | 2026 |
| Chantry Tennis Club Limited | Birmingham | 2018 |
| Chanya Culture Ltd | Ammanford | 2023 |
| Chanya TUM Home Limited | Penarth | 2025 |
| Chao Phraya Muay Thai Ltd | Lincoln | 2012 |
| Chaos + Order Ltd | Newtown | 2023 |
| Chaos a Go-Go Ltd | London | 2022 |
| Chaos Arts C.I.C. | Liverpool | 2022 |
| Chaos Calling Ltd | London | 2023 |