UCaaS MetriRank 2026

Authors: Diane Myers, Senior Research Director

Metrigy’s global Workplace Collaboration MetriCast 2025 study, conducted with 775 companies, finds that 58.6% of businesses worldwide are using unified communications as a service (UCaaS) as their sole phone and collaboration platform. The adoption of UCaaS provides businesses with flexibility and scalability, the ability to move to an OpEx model, quicker access to enhanced capabilities, including artificial intelligence (AI), and more. In this UCaaS MetriRank 2026 report, Metrigy examines the leading providers across product capabilities, financials, and customer insights.

The global market for UCaaS was $23.0 billion in 2025, up 6% year-over-year. Metrigy forecasts the market to grow at a 4% CAGR from 2025 to 2030, reaching $28.0 billion by 2030. UCaaS delivers cost-effective services with sophisticated product features for small, midsize, and large companies.

The UCaaS market is fragmented, with providers of varying sizes, capabilities, and reach—some are global, and others are regional. However, the market has coalesced around a few large providers, with Microsoft as the market share leader. Microsoft’s wide-reaching base forces other UCaaS providers to figure out ways to coexist with integrated telephony and contact center-as-a-service (CCaaS) solutions or to target underserved markets. Competing UCaaS providers are now increasingly targeting specific industries, such as healthcare and retail, with specialized solutions.

When it comes to baseline features and capabilities—calling, meetings, and messaging—there is little differentiation among UCaaS offerings. Rather, providers are winning based on factors such as licensing structure and costs; integration with productivity application suites from vendors such as Google, Microsoft, and Zoho; security and compliance features; AI capabilities; installed base of legacy PBX customers; desire for a single-vendor platform for UCaaS and CCaaS; and channel reach. The market has been marked by extensive mergers and acquisitions, but consolidation has begun to slow. Although the top 10 list has been consistent over the past few years, the biggest providers are getting bigger, and the smaller providers are forced to become highly focused on go-to-market (GTM) strategies.