FIVN

Five9, Inc.

One of the world's larger cloud contact-center platforms, Five9 turns customer service into software, letting businesses handle calls, chat, and email over the internet instead of on bulky on-premises phone systems. Its embedded Genius AI suite assists those interactions for thousands of organizations of every size. Founded in 2001 in the San Francisco Bay Area by a team of VoIP engineers, the company helped pioneer moving call centers to the cloud. Its name nods to the telecom reliability gold standard of "five nines" uptime, not the nine-to-five workday.