| CAA Holdings Limited | Mexborough | 2019 |
| CAA Investments Limited | London | 2020 |
| Caamba Limited | Sale | 2019 |
| Caan ROX Design Limited | London | 2003 |
| Caanz (UK) Limited | London | 2015 |
| Caar GB Ltd. | Whittlesford | 1997 |
| Caar Limited | Birmingham | 2004 |
| Caaru - Confederacao DAS Associacoes Angolanas NO Reino Unido Ltd. | London | 2020 |
| Caas Trading Company Limited | Cardiff | 2013 |
| Caat Trading Limited | Newquay | 2016 |
| CAB Contracting & Recruitment Ltd | London | 2026 |
| CAB Data Ltd | Ruislip | 2019 |
| CAB Devon | Exeter | 2012 |
| CAB Hair Limited | Wolverhampton | 2019 |
| CAB Ride Limited | Ilford | 2015 |
| Cabal Holdings Limited | Northampton | 2021 |
| Cabana Blue Limited | London | 2017 |
| Cabane Official Ltd | Brentwood | 2024 |
| Cabaret Limited | Potters Bar | 2026 |
| Cabaret of the Angels Limited | London | 1994 |
| Cabbage Hall CIC | St. Helens | 2020 |
| Cabbage White Linen Services Limited | Birmingham | 2017 |
| Cabbella Hair Salon Limited | Birmingham | 2012 |
| Cabbunk Ltd | Stoke On Trent | 2012 |
| Cabcard Services (UK) Limited | Stockport | 2006 |
| Cabcard Terminals Limited | Stockport | 2006 |
| Cabco Limited | Newbury | 1988 |
| Cabeauty Ltd | Newton Abbot | 2021 |
| Cabel 7 Ltd | Northwood | 2023 |
| Cabel UK Limited | London | 2009 |
| Cabell Hair Company Limited | Edinburgh | 2018 |
| Cabello (Coventry) Ltd | | 2007 |
| Cabello (Ledbury) Ltd | Ledbury | 2017 |
| Cabello Braids Ltd | Eastleigh | 2024 |
| Cabello by Caroline Ltd | Irvine | 2021 |
| Cabello by Laura Hughes Ltd | Wemyss Bay | 2022 |
| Cabello for Hair Limited | Bury | 2007 |
| Cabello Hair and Beauty (UK) Limited | Witham | 2014 |
| Cabello Hair and Beauty Ltd | Musselburgh | 2013 |
| Cabello Hair Extensions Ltd | Newcastle Upon Tyne | 2025 |
| Cabello Hair Limited | Kirkcaldy | 2023 |
| Cabello Hair Lounge Ltd | Lincoln | 2023 |
| Cabello Limited | Derby | 2000 |
| Cabello Lounge Ltd | Waterlooville | 2025 |
| Cabello Salon Limited | Normanton | 2022 |
| Cabello Suffolk Ltd | Sudbury | 2023 |
| Cabellos R&R Limited | Westcliff-On-Sea | 2025 |
| Cabelo "Hair by Stacey Wade" Ltd | Ayr | 2023 |
| Cabelo Arte Limited | Alloa | 2007 |
| Cabelo Tettenhall Limited | Telford | 2018 |
| Cabelos Limited | Hampshire | 2003 |
| Caber Interiors Ltd. | Perth | 2017 |
| Caberfeidh Horizons | | 2004 |
| Caberfeidh Limited | Glasgow | 1992 |
| Cabin 94 Studios Ltd | London | 2024 |
| Cabin Beauty (Cambs) Limited | Biggleswade | 2020 |
| Cabin Beauty Ltd | Biggleswade | 2011 |
| Cabin Clerkenwell Limited | London | 2018 |
| Cabin Club Afterschool C.I.C. | Peterhead | 2025 |
| Cabin Lane Church | Oswestry | 1998 |
| Cabin Studio Holdings Limited | London | 2018 |
| Cabine Phone Ltd | London | 2024 |
| Cabinzero NI Limited | Belfast | 2025 |
| Cable Makers Properties & Services Limited | London | 1948 |
| Cable Makers UK Limited | London | 2023 |
| Cable Right Limited | Surrey | 2004 |
| Cableology Limited | Leicester | 2012 |
| Cables Electrical Installations Limited | Sutton-In-Ashfield | 2014 |
| Cabot Visions Limited | Bristol | 2015 |
| Cabourn Statistics Limited | Warrington | 2019 |
| Cabrach Consulting Limited | Aberdeen | 2017 |
| Cabriole Limited | London | 2018 |
| Cabspark Limited | Burgess Hill | 2012 |
| Cabsure Limited | London | 2015 |
| Caburn Communications Limited | Uckfield | 2018 |
| Cabwell Drivers Limited | London | 2017 |
| CAC Glory House Community Interest Company | London | 2025 |
| CAC Group Limited | London | 2023 |
| CAC House of Encounter | Walsall | 2025 |
| CAC Purpose of Victory House | Peterborough | 2025 |
| CAC Redeemer's House Ltd | London | 2016 |
| Cacao With Chloe Ltd | London | 2025 |
| Cach Limited | Ferryhill | 2010 |
| Cache & Store Ltd | Bracknell | 2021 |
| Cachet Cleaning & Environmental Services Limited | Leighton Buzzard | 2014 |
| Caci Wimbledon Ltd | London | 2022 |
| Cacoa & Candy Ltd | London | 2023 |
| Cactus Black Ltd | Dunblane | 2022 |
| Cactus Blooms Ltd | London | 2019 |
| Cactus Commerce Limited | Newton Abbot | 2023 |
| Cactus Event Management Ltd | Saffron Walden | 2018 |
| Cactus Grill Ltd | Wembley | 2012 |
| Cactus Laser Clinic and Wellness Limited | Croydon | 2023 |
| Cactus Trade Limited | London | 2024 |
| Cactus: Business Consultancy Limited | Stockton-On-Tees | 2023 |
| CAD (London) Limited | Borehamwood | 2017 |
| CAD CAM Design Ltd | Coventry | 2022 |
| CAD Haulage Ltd | Wellingborough | 2021 |
| CAD Pipe Ltd. | Clydebank | 2016 |
| CAD Section Ltd | London | 2018 |