The Competition and Markets Authority has launched a strategic market status investigation into Microsoft’s business software ecosystem, covering products used by more than 15 million commercial users across the UK. The investigation will examine whether Microsoft’s software practices, including bundling and interoperability restrictions, may affect customer choice and competition within business software and cloud services markets.
The investigation was announced on 14 May 2026 as part of the UK’s digital markets competition regime introduced in January 2025. The CMA stated that the review will focus on Microsoft’s position across workplace software products used by businesses and public sector organisations throughout the UK.
The review includes Microsoft products such as Windows, Word, Excel, Teams, Copilot, security software, database management systems, and server operating systems. The CMA will also examine how AI-enabled business software is developing as organisations increase adoption of workplace AI services.
CMA Launches Strategic Market Status Investigation
The CMA investigation will determine whether Microsoft should receive strategic market status designation within business software markets. The designation process allows regulators to consider targeted competition measures where legal thresholds are met.
The authority said Microsoft’s software ecosystem plays a major role in UK business productivity because hundreds of thousands of organisations use Microsoft services daily. The investigation forms the fourth SMS review launched since the digital competition framework entered into force.
- Investigation Launch: The CMA formally opened the review on 14 May 2026 under the UK digital markets regime.
- Review Period: The investigation must be completed within a nine-month statutory timetable.
Microsoft Ecosystem Review Scope
| Indicator | Recent Movement | Context |
|---|---|---|
| SMS Investigation | Launched | The CMA opened a formal review into Microsoft’s business software ecosystem. |
| Commercial Users | 15 million+ | Microsoft products are used widely across UK organisations. |
| Digital Markets Reviews | Fourth investigation | The case is the fourth SMS investigation initiated since January 2025. |
Competition Concerns Across Business Software
The CMA has received concerns that some customers may face difficulties combining Microsoft software with rival services. Regulators stated that the investigation will examine whether bundling practices, interoperability limits, or default software settings reduce customer flexibility.
The review will assess whether these conditions weaken competitive pressure from rival providers. The authority noted that organisations may experience barriers when switching suppliers or integrating alternative business software products.
- Bundling Practices: Regulators will examine whether integrated software packages influence customer purchasing decisions.
- Interoperability: The CMA will review whether third-party software providers face technical limitations within Microsoft systems.
Competition Areas Under Examination
| Indicator | Recent Movement | Context |
|---|---|---|
| Bundling Concerns | Under review | The CMA will assess whether software packages limit customer choice. |
| Default Settings | Included in investigation | Officials said software defaults may affect supplier switching behaviour. |
| Interoperability Access | Being assessed | The review includes how rival services connect with Microsoft products. |
AI Integration and Software Ecosystem Access
The business software market is evolving rapidly as AI functionality becomes more integrated within workplace tools. The CMA stated that The CMA said organisations should be able to integrate AI software from multiple suppliers within existing workplace systems.
Officials said the investigation will examine how competing AI providers interact with Microsoft’s software ecosystem. The review includes consideration of whether AI rivals can integrate effectively with Microsoft workplace products and services.
Cloud Services and Licensing Implications
The investigation will also consider findings from the CMA’s earlier cloud services market review. Regulators previously identified concerns involving Microsoft software licensing arrangements and their effect on cloud competition.
An SMS designation could allow further consideration of targeted interventions linked to cloud market competition. Any future action by the CMA would remain subject to legal requirements and evidence gathered during the investigation process.
Stakeholder Comments
Sarah Cardell, Chief Executive of the CMA said;
“Business software is a cornerstone of how the UK economy functions, from small businesses to major public services and infrastructure. Hundreds of thousands of customers in the UK rely on Microsoft’s systems, which is why it’s so important to ensure these services are delivering good outcomes.”
“Our aim is to understand how these markets are developing, Microsoft’s position within them and to consider what, if any, targeted action may be needed to ensure UK organisations can benefit from choice, innovation and competitive prices.”
The CMA will continue gathering evidence from businesses, software providers, public-sector organisations and Microsoft before reaching a decision on potential strategic market status designation by February 2027.
Sources: Competition and Markets Authority, Sarah Cardell, Chief Executive of the CMA.
Prepared by Ivan Alexander Golden, Founder of THX News, an independent news organisation delivering timely insights from global official sources. Combines AI-analysed research with human-edited accuracy and context.
