Five9 is the proven, open cloud platform for customer experience. Cloud-native since 2001 and built by voice experts for the agentic era, Five9 powers contact centers for 4,000+ customers across 140+ countries. Powered by Genius AI, Five9 learns from every interaction to drive real outcomes, with the governance and openness the most regulated enterprises demand. Smarter CX with every interaction.
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The Five9 annual revenue was $1 billion in 2026.
Amit Mathradas is the Chief Executive Officer and Board Member of Five9.
2,178 people are employed at Five9.
Five9 is based in San Ramon, California.
The NAICS codes for Five9 are [518, 5179, 51, 517, 51791, 517911].
The SIC codes for Five9 are [738, 7389, 73].