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StocksMedium•27 April 2026•

1 min read

Slack Sues Microsoft in UK Over Teams Bundling Antitrust Concerns

Key Facts

1Salesforce-owned Slack is suing Microsoft at London's High Court over alleged anticompetitive practices.

2The lawsuit focuses on Microsoft's bundling of its Teams app with its other software products.

Salesforce-owned Slack has initiated an antitrust lawsuit against Microsoft in London's High Court, alleging unfair competitive practices. The legal action focuses on Microsoft's bundling of its Teams messaging application with its dominant office software suites. Slack contends that this strategy leverages Microsoft's market power to stifle competition and limit consumer choice. This lawsuit emerges amid intensifying regulatory scrutiny of Big Tech firms within the United Kingdom and European markets. Potential outcomes could include significant financial penalties or mandatory changes to Microsoft's software distribution model. Investors are closely monitoring the proceedings for potential impacts on the broader technology and cloud software sectors.