| Carly’S Swim School Ltd | Leicester | 2021 |
| Carma Club Limited | Bristol | 2026 |
| Carmac Limited | Newry | 2018 |
| Carmarthen and District Autograss Club Limited | Carmarthen | 1994 |
| Carmarthen and District Youth Opera | Carmarthen | 1993 |
| Carmarthen Asylum History Project Ltd | Carmarthen | 2025 |
| Carmarthen Community Leisure Ltd | Carmarthen | 2022 |
| Carmarthen GC Trading Ltd | Carmarthen | 2016 |
| Carmarthen Motor Club Limited | Carmarthen | 1989 |
| Carmarthen Rugby Football Club Limited | Carmarthen | 2012 |
| Carmarthen Town AFC Limited | Carmarthen | 1999 |
| Carmarthen Town Football Club Limited | Carmarthen | 1998 |
| Carmarthenshire School of Gymnastics Limited | Llanelli | 2011 |
| Carmarthenshire Wizards Ltd | Llanelli | 2024 |
| Carmel Music Limited | Sheffield | 2015 |
| Carmel Yachting Ltd | London | 2024 |
| Carmelina Ltd | London | 2025 |
| Carmen Collective Ltd | London | 2022 |
| Carmen Community Initiative | Carrickmore | 2021 |
| Carmen H Cody Limited | Glasgow | 1990 |
| Carmen Inc Limited | London | 2020 |
| Carmen Lucy Tran Limited | Manchester | 2022 |
| Carmenia Productions Ltd | London | 2011 |
| Carmichael Sports Ltd | Poynton | 2019 |
| Carmilla Ltd | Romford | 2026 |
| Carmina Entertainment & Events Ltd | Leeds | 2024 |
| Carmina Limited | Nottingham | 2002 |
| Carmina Priapea C.I.C. | London | 2022 |
| Carn Brea Leisure Centre (Trading) Ltd | Redruth | 2001 |
| Carn Brea Leisure Centre Trust | Redruth | 1999 |
| Carn Music Limited | Enniskillen | 2017 |
| Carnaby Talent Agency Ltd. | London | 2022 |
| Carnage Competitive Ltd | Harrogate | 2022 |
| Carnage Fitness Studio Ltd | Greenock | 2026 |
| Carnation Productions Ltd | Falkirk | 2026 |
| Carnegie Heritage Centre Limited | Hull | 2009 |
| Carnegie Oldpark Limited | Belfast | 2016 |
| Carnegie Sporting Ltd | Rugby | 2023 |
| Carnelianservices Ltd | Dundonnell | 2024 |
| Carnera Art Limited | Glasgow | 2019 |
| Carnethy Hill Racing Club | Edinburgh | 2014 |
| Carnethy Hill Running Club | Edinburgh | 2014 |
| Carnevale Network Ltd | London | 2017 |
| Carney Academy Cheshire Limited | Sandbach | 2017 |
| Carney Academy Limited | Sandbach | 2014 |
| Carney Boxing Fitness Limited | Middlesbrough | 2018 |
| Carnforth Heritage Visitors Centre C.I.C. | Carnforth | 2025 |
| Carnforth Railway Station C.I.C. | Carnforth | 2025 |
| Carnforth Station and Railway Trust Company Limited | Carnforth | 1996 |
| Carnhell Green Vintage Rally Limited | Hayle | 2017 |
| Carnieclines Ltd | Brighton | 2024 |
| Carnival Arts Yard | Glasgow | 2019 |
| Carnival Bingo Larne Ltd | Moira | 2015 |
| Carnival Creatives CIC | London | 2022 |
| Carnival Culture Ltd | London | 2019 |
| Carnival Leisure Limited | Blaby | 2014 |
| Carnival of Eternal Light Ltd | Newcastle | 2016 |
| Carnival Parties Limited | Bury St. Edmunds | 2013 |
| Carnival Revellers Ltd | London | 2025 |
| Carnival Rides Limited | Houghton Le Spring | 2016 |
| Carnival Thrill Ltd | Craigavon | 2025 |
| Carnival Village Trust | London | 2007 |
| Carnmenellis Carriage Club Limited | Falmouth | 2002 |
| Carnoustie Panmure Community Football Club Ltd | Carnoustie | 2025 |
| Carntogher Cabins Ltd | Maghera | 2018 |
| Carntogher Community Association | Maghera | 1998 |
| Carnview Farms Sports Complex Limited | | 2009 |
| Carnyx & Co. | Bonnyrigg | 1997 |
| Caroheda Productions Ltd | London | 2022 |
| Carol Jarvis Ltd | Bedford | 2025 |
| Carol Peace Ltd | Hereford | 2006 |
| Carol Ribeiro Limited | Enfield | 2026 |
| Carol Robinson Limited | Bristol | 2007 |
| Carol Thompson Limited | Ashby-De-La-Zouch | 1989 |
| Carol-Anne Ward Limited | Doncaster | 2018 |
| Carola Design Limited | London | 2018 |
| Carola Van Dyke Art Limited | Hastings | 2024 |
| Carole Gibbons Limited | London | 2025 |
| Carole Keating Studio Ltd | London | 2023 |
| Carole Matthews (INK) Limited | Milton Keynes | 2002 |
| Caroline Blair Limited | Rochdale | 2022 |
| Caroline Bradley Design Ltd | London | 2019 |
| Caroline Connor Limited | London | 2002 |
| Caroline Dale Limited | Bath | 2011 |
| Caroline Dawson Associates Limited | London | 2016 |
| Caroline Girvan Ltd | Larne | 2020 |
| Caroline Harrison Conservation Limited | Badminton | 2008 |
| Caroline Perry Ltd | London | 2023 |
| Caroline Phillips Management Ltd | Corsham | 2023 |
| Caroline Wallace Sculptures Limited | Cheltenham | 2015 |
| Carolines Yoga Ltd | Ponteland | 2026 |
| Carols Latin Jive Limited | Watford | 2011 |
| Carolyn Sampson Limited | London | 2006 |
| Caromusic Ltd | Hove | 2022 |
| Caron Roberts Equestrian Limited | Swindon | 1998 |
| Caron Warner Celebrancy Limited | Leatherhead | 2026 |
| Carosso Ltd | London | 2019 |
| Carousel Amusements Limited | Waterlooville | 2006 |
| Carousel Coin Leisure Limited | Wakefield | 2023 |
| Carousel Entertainment of Windsor Limited | East Sussex | 1996 |