Market Share – UCaaS Market by Revenue
| UCaaS Vendor | Market Share (%) | Rank | Revenue ($B) | Market Position | Key Strength |
|---|---|---|---|---|---|
| Microsoft Teams | 27.5% | #1 | $9.19B | Dominant Leader | Office 365 Bundling |
| Cisco Webex | 19.4% | #2 | $6.48B | Enterprise Stronghold | Network Integration |
| Zoom | 13.2% | #3 | $4.41B | Video-first Leader | Ease of Use |
| RingCentral | ~10% | #4 | $2.5B | #1 UCaaS by Seats | Pure-play UCaaS + AI |
| Vonage (Ericsson) | 3.5% | #5 | $1.17B | CPaaS + UCaaS | API-led Platform |
| 8×8 | 2.8% | #6 | $0.94B | XCaaS Pioneer | Integrated UC + CC |
| Google Meet | 2.5% | #7 | $0.84B | Workspace Integration | Google Ecosystem |
| Others | 21.1% | – | $7.05B | Fragmented | Niche Solutions |
*Disclaimer: All information displayed is subject to frequent changes given the dynamic nature of the data












