| Caesielus Ltd | Stourbridge | 2016 |
| Caeta Limited | Leicester | 2021 |
| CAF Group UK Limited | Coventry | 2017 |
| CAF Rail Traincare Limited | Coventry | 2022 |
| CAF Rail UK Limited | Belfast | 2004 |
| CAF Rolling Stock UK Limited | Coventry | 2017 |
| Cafden Services Limited | Uxbridge | 2004 |
| Cafe 11:11 Ltd | Leeds | 2025 |
| Cafe Bijou Limited | Halstead | 2021 |
| Cafe Bohemia Limited | Sheffield | 2024 |
| Cafe Boho Limited | Ilford | 2024 |
| Cafe Clinic Ltd | Market Drayton | 2014 |
| Cafe Coffee Brew Ltd | London | 2025 |
| Cafe Colombia Limited | Leicester | 2025 |
| Cafe DE Paris Group Ltd | Huddersfield | 2026 |
| Cafe Kahani Franchising Ltd | Glasgow | 2026 |
| Cafe Klps Ltd | Great Barr Birmingham | 2020 |
| Cafe LA Ltd | Ayr | 2026 |
| Cafe Leopold Limited | London | 1993 |
| Cafe Lime Ukbd Limited | London | 2024 |
| Cafe Lule Ltd | London | 2026 |
| Cafe Manon Limited | Brighton | 2025 |
| Cafe Mignon Ltd | London | 2020 |
| Cafe Nort Ltd | Sheffield | 2020 |
| Cafe Nova Limited | London | 2025 |
| Cafe Paradiso Deli Limited | Pinner | 2006 |
| Cafe Racer Kits Holdings Limited | Sheffield | 2021 |
| Cafe Racer Kits Ltd | Sheffield | 2014 |
| Cafe Regal Limited | Bradford | 2015 |
| Cafe Route Ltd | Gillingham | 2017 |
| Cafe Santiago Roastery Limited | Ware | 2026 |
| Cafe Wise Limited | Wishaw | 2016 |
| Cafea UK Limited | Dunstable | 1994 |
| Cafecirouk Ltd | London | 2023 |
| Cafedrop Ltd | Queens Park | 2025 |
| Cafelat International Limited | Bedfordshire | 2023 |
| Cafen Speciality Roasters Ltd | Edinburgh | 2025 |
| Cafepod Limited | London | 2011 |
| Cafeyh Ltd | London | 2025 |
| Cafezinho Coffees Ltd | Caterham | 2017 |
| Caffe Basch Limited | Cardiff | 2020 |
| Caffe Concerto Limited | London | 1986 |
| Caffe POD Ltd | Seaford | 2023 |
| Caffe Royale London Ltd | Ilford | 2020 |
| CAFFE88 Limited | Ilford | 2023 |
| Caffeat Coffee Group Co., Ltd | West Midlands, England | 2026 |
| Caffeinated Design Ltd | Rugby | 2022 |
| Caffeine and Iron Ltd | Luton | 2025 |
| Caffeine Bullet Limited | London | 2018 |
| Caffeine FIX Limited | Crieff | 2006 |
| Caffeine Project Coffee Roasters Ltd | Warwick | 2020 |
| Caffeinecare Ltd | Kilmarnock | 2025 |
| Caffeluxe Limited | Stevenage | 2015 |
| Caffenation Limited | Bristol | 2018 |
| Caffesmith Limited | Wimborne | 2018 |
| Caffia Coffee Group Limited | Falkirk | 2016 |
| Cafficlear Ltd | Northwich | 2025 |
| Caffyn Engineering Ltd | Oxfordshire | 2020 |
| Caffè Cartel Ltd | Ballyclare | 2025 |
| Caffè Fresco Ltd | Stourbridge | 2020 |
| Caflon Limited | Aylesbury | 1998 |
| Cafolla's Italian Ice Cream Limited | Co Armagh | 1986 |
| Cafrica Roasters Ltd | Bury St. Edmunds | 2025 |
| Cafuné Paws Limited | London | 2025 |
| Cafè Bottega Ltd | Manchester | 2026 |
| Café Mountain Coffee Limited | Hungerford | 2026 |
| Café Shirt Ltd | London | 2025 |
| Café-Couture Studios Ltd | Ilford | 2026 |
| CAG (UK) Limited | Poole | 1999 |
| CAG Gumus Limited | Nottingham | 2021 |
| Caged Gym Apparell Ltd | London | 2026 |
| Caged Laser Engineering (SW) Ltd | Radstock | 2017 |
| Caged Steel Corsa Ltd | Dewsbury | 2017 |
| Caggys Limited | Tipton | 2020 |
| Cagp Investment Ltd | Wisbech | 2026 |
| CAH Engineering Ltd | Prescot | 2025 |
| Caherush Enterprises Limited | Wick | 2024 |
| Cahill Carpentry Contractors Ltd | Kenilworth | 2023 |
| Cahill Group Limited | Kingston Upon Thames | 2023 |
| Cahill Plastics Ltd | Frog Island | 2005 |
| Cahill Steel Fabrications Ltd | Sherborne | 2014 |
| Cahill Welding Services Ltd. | Henstridge | 2005 |
| Cahill's Chocolatier Ltd | London | 2023 |
| Cahn Aroma Therapy Limited | Radlett | 2007 |
| Caiano Ltd | London | 2025 |
| Caichuang Industrial and Trade Co., Ltd | West Midlands, England | 2023 |
| Caife Brea Ltd | Liverpool | 2024 |
| Caim Design Limited | Manchester | 2026 |
| Cain Books Limited | Huntingdon | 2026 |
| Cain Maylum Ltd | Birmingham | 2018 |
| Cainco Limited | Barrow-Upon-Humber | 1983 |
| Caine Joinery Limited | Narberth | 2024 |
| Caine Maintenance Services Ltd | Bicester | 2022 |
| Cains Limited | Bromley | 2009 |
| Caipira Brazilian Flavours Ltd | Ely | 2017 |
| Caird 4 Technologies Ltd | Burntisland | 2024 |
| Cairn & Tarn Ltd | London | 2025 |
| Cairn Candle Company Ltd. | Grantown-On-Spey | 2018 |
| Cairn Controls Ltd. | Falkirk | 2026 |
| Cairn Cosmetics Limited | Edinburgh | 2026 |