| CAE Group Holdings Ltd | Mansfield | 2025 |
| CAE Investments Ltd | Glasgow | 2024 |
| CAE Technology Holdings Limited | Hemel Hempstead | 2010 |
| CAE Ventilation Holdings Limited | Ellesmere Port | 2024 |
| Caecus Group Holdings Limited | Greenford | 2023 |
| Caedmon Bede Limited | London | 2015 |
| Caee Group Holdings Limited | Thirsk | 2022 |
| Caelestis Holdings Ltd | London | 2025 |
| Caeli Custos Company Ltd | Birmingham | 2025 |
| Caelian Developments Limited | Bristol | 2026 |
| Caelith Holdings Limited | Southampton | 2026 |
| Caelo Ventures Limited | London | 2025 |
| Caelra Group Ltd | London | 2025 |
| Caelum Associates Ltd | London | 2024 |
| Caelum Compass Box Holdings Limited | London | 2022 |
| Caelum Group Limited | Bury St. Edmunds | 2025 |
| Caelum Reach Limited | Grange-Over-Sands | 2019 |
| Caelus Bidco Ltd | Whiteley, Fareham | 2021 |
| Caelus Group Ltd | Aberdeenshire | 2024 |
| Caelus Holdings Limited | Lowfield Heath | 2025 |
| Caelus Midco Ltd | Whiteley, Fareham | 2021 |
| Caelus Topco Ltd | Whiteley, Fareham | 2021 |
| Caenstone Ltd | Kings Langley | 2018 |
| Caenwood Capital Limited | London | 2018 |
| Caer Capital Limited | Cardiff | 2021 |
| Caer IFA Ltd | Cardiff | 2025 |
| Caerhays Minerals Limited | Truro | 2024 |
| Caerleon House Care 2024 Limited | Pontypridd | 2024 |
| Caerphilly Capital Ltd | Grays | 2022 |
| Caerulean | Bishops Sutton | 2019 |
| Caeruleus Horizons Limited | Bristol | 2025 |
| Caerus Assets Limited | Hemel Hempstead | 2018 |
| Caerus Capital Group Limited | London | 2009 |
| Caerus Deptford Limited | London | 2025 |
| Caerus Holdco Limited | Manchester | 2026 |
| Caerus Holdings Limited | London | 2015 |
| Caerus Services Limited | London | 2022 |
| Caerus Technologies Limited | Manchester | 2020 |
| Caerus UK 1 Limited | London | 2022 |
| Caerwyn Investments Ltd | Oldham | 2024 |
| Caesar Financial Solutions Limited | Bradford | 2022 |
| Caesar Midco Limited | London | 2024 |
| Caesar Topco Limited | London | 2024 |
| Caesaris Denarii Limited | Wrotham Heath | 2025 |
| Caesars Joint IP Company Limited | Leeds | 2021 |
| Caesars Trading and Technology Services Limited | Leeds | 2021 |
| CAESIUM133 Ltd | Hove | 2020 |
| CAF Bank Limited | Kent | 1984 |
| CAF Capital Limited | Huddersfield | 2021 |
| CAF Financial Solutions Limited | West Malling | 1992 |
| CAF Ventures Ltd | Bolton | 2025 |
| Cafdem Limited | Walthamstow | 2025 |
| Cafe Agricole Limited | Reigate | 2024 |
| Cafe Deli Holdings Limited | Chelmsford | 2024 |
| Cafe Morso Group Limited | Birmingham | 2017 |
| Cafe Parentco Limited | London | 2021 |
| Cafe PAY Ltd | London | 2025 |
| Cafefirst Limited | London | 2005 |
| Cafeology Holding Company Limited | Sheffield | 2026 |
| Cafer Capital Ltd | Edinburgh | 2026 |
| Caffe Sala Trading Ltd | Glasgow | 2026 |
| Caffe Velo Verde Holdings Limited | Nottingham | 2024 |
| Caffeideas Holdings Limited | Solihull | 2026 |
| Caffpack Limited | Wells | 2025 |
| Caffreys Holdings Limited | Droitwich | 2017 |
| Caffyns Pension Fund Trustees Limited | East Sussex | 1947 |
| Cafic Ltd | Byfleet | 2022 |
| Cafima Group Ltd | Omagh | 2024 |
| Café IB Company Limited | Braintree | 2015 |
| CAG Crux 1 Limited | Hook | 2025 |
| CAG Crux 2 Limited | Hook | 2025 |
| CAG Crux 3 Limited | Hook | 2025 |
| CAG Sirius 1 Limited | Hook | 2022 |
| CAG Sirius 2 Limited | Hook | 2022 |
| CAG Vega 1 Limited | Hook | 2021 |
| CAG Zeta 1 Limited | Hook | 2022 |
| CAG Zeta 2 Limited | Hook | 2022 |
| Caga Holdings Ltd | Glasgow | 2025 |
| Cagadvisory Ltd | Billingshurst | 2025 |
| Cagera Investors Limited | London | 2010 |
| Cagill Limited | Market Rasen | 2023 |
| Cagp Limited | Beckenham | 2019 |
| Cags Trading Ltd | Bideford | 2026 |
| CAH Investments Limited | Maidstone | 2015 |
| Cahill Group Holdings Limited | Ipswich | 2023 |
| Cahill Holdings Limited | Colchester | 2003 |
| Cahokia Heavy Industries Ltd | Esher | 2008 |
| Cahp Sales Limited | Southampton | 2011 |
| CAI Group Holdings Ltd | London | 2026 |
| Caia Holdings Ltd | Clifton | 2016 |
| Caibo Ltd | London | 2022 |
| Caibut Ltd | Belper | 2015 |
| Caicai Limited | London | 2023 |
| Cailean Ltd | Kinross | 2008 |
| Cailleach Holdings Ltd | Newcastle Upon Tyne | 2021 |
| Cailora Ltd | London | 2023 |
| Cain Capital Ltd | Altrincham | 2009 |
| Cain Capital Management Ltd | London | 2025 |
| Cain Court Freehold Ltd | Fleet | 2014 |
| Cain Family Holding Company Limited | Southampton | 2017 |