Britain‘s competition watchdog said on Friday that Amazon Web Services and Microsoft can do more to address remaining barriers to switching between cloud providers and using multiple cloud services to deliver greater customer choice in the UK. The Competition and Markets Authority said it would keep the possibility of launching a full strategic market status investigation into the sector under review.
The intervention reflects a growing unease among regulators about how concentrated the cloud computing market has become. Microsoft and AWS together command a substantial share of the global cloud infrastructure business, and their dominance has made it increasingly difficult for smaller rivals to compete on equal terms. For businesses that rely on cloud services, the practical consequences are familiar. Moving data and workloads from one provider to another often involves steep egress fees, technical incompatibilities and lengthy migration timelines that make switching feel less like a genuine option and more like a theoretical one. When a company has built its entire digital operation around one provider’s ecosystem, the cost of leaving can quickly outweigh the benefits of staying, even if a competitor offers better terms.
The CMA’s decision to keep a full strategic market status investigation under review is significant because it signals that the regulator is not yet satisfied with the pace of change. Strategic market status is a powerful designation that would allow the CMA to impose binding remedies on companies it deems to hold substantial and entrenched market power. The fact that the watchdog has stopped short of launching such an investigation for now suggests it wants to give the market a chance to respond voluntarily, but the threat remains on the table.
What makes this moment particularly interesting is the broader context in which it is unfolding. Cloud computing has become the backbone of modern business, supporting everything from banking and healthcare to entertainment and artificial intelligence. Microsoft and its peers therefore wield enormous influence over the wider economy. Regulators in Europe and the United States have been watching the sector closely, and the UK’s latest move adds to a growing international consensus that the cloud market may need structural intervention to function fairly.
The counterargument is equally worth considering. Microsoft and AWS have invested billions in building the infrastructure that makes cloud computing possible, and they argue that their scale delivers reliability, security and innovation that smaller providers cannot match. Customers who choose their services do so for reasons that go beyond price, including performance, compliance and integration with existing tools. Breaking open these ecosystems could introduce fragmentation and complexity that ultimately harms the very customers the regulator is trying to protect. Whether the CMA’s review will lead to meaningful change or simply more consultation remains an open question, and the answer will shape how businesses buy and use cloud services for years to come.
