UK competition regulator opens consultation on Microsoft’s business software power
The CMA has proposed strategic market status for Microsoft’s business software ecosystem, opening a consultation on competition, switching and AI choice.
Britain’s Competition and Markets Authority has proposed designating Microsoft with strategic market status in its business software ecosystem, a preliminary step that could lead to tailored competition requirements. The regulator said the proposal follows an investigation into operating systems, productivity suites, security software, server operating systems and relational databases. A final decision will follow consultation, with the statutory deadline falling in February 2027.
The scale of the market explains the scrutiny. Microsoft’s workplace products are used by more than one million UK businesses and public-sector organisations and have around 20 million monthly users, according to the CMA. As generative and agentic AI are added to familiar tools, the authority wants customers to be able to combine services and choose alternatives without being locked into a single provider’s ecosystem.
The CMA’s indicative roadmap highlights bundling, software integration, AI choice, security products and cloud licensing as areas for further evidence. It is also examining whether developers can connect their products effectively and whether customers can deploy software licences across competing cloud platforms. Any intervention would require separate legal tests and further consultation.
The regulator also reported progress in discussions with Microsoft and Amazon Web Services on cloud switching. Steps cited include lower or removed data-transfer fees, new interoperability request channels and tools that automate parts of migration. Work remains on identity and access management across clouds and on making portable architectures easier to deploy.
Strategic market status is a regulatory designation, not a finding of misconduct. The immediate consequence is a consultation rather than a penalty or binding remedy. For business customers, the practical questions are whether future rules reduce switching costs, expand access to competing AI tools and create clearer choices without disrupting services that organisations already depend on.