| Case against Apple and Google | Duopoly in mobile platforms oversupply of Operating System, app stores and web browsers | Investigation ongoing | UK CMA | CMA Press Release |
| Google’s Privacy Sandbox | Google’s proposals to remove third party cookies and other functionalities from its Chrome browser is under investigation for: unequal access to the functionality associated with user tracking self-preferencing Google’s own ad tech providers and owned and operated ad inventory position of unfair terms on Chrome’s web users | Investigation opened (7 January 2021) | UK CMA | |
| Case against Apple and Google | Duopoly in mobile platforms over supply of Operating System, app stores and web browsers. | Investigation ongoing | UK CMA | CMA Press Release |
| CA98 and civil cartels | Unfair terms and conditions in Apple App Store | Investigation Opened (4 March 2021) | UK CMA | |
| Investigation into Apple App Store | Apple’s conduct in relation to the distribution of apps on iOS and iPadOS devices in the UK, in particular, the terms and conditions governing app developers’ access to Apple’s App Store | Investigation Opened (3 March 2021) | UK CMA | |
| Facebook’s use of data | Facebook’s conduct in relation to the collection and/or use of data in the context of providing online advertising services and its single sign-on function and whether this results in a competitive advantage over downstream competitors | Investigation open (4 June 2021) | UK CMA | |