FIVN Five9 Inc

Five9, Inc. (Nasdaq:FIVN) today announced that it will release financial results for the first quarter ended March 31, 2015 following the close of market on Tuesday, May 12, 2015. The Company will host a corresponding conference call and webcast at 4:30 p.m. Eastern Time on that day.

Investors may listen to the conference call (ID 6965133) by dialing 888-455-2308 or 719-325-2462 at 4:30 p.m. Eastern Time on May 12, 2015. An audio replay of the call will be available through May 26, 2015 by dialing 888-203-1112 or 719-457-0820 and entering access code 6965133.

A webcast of the call will be available on the Investor Relations section of the Company's website at http://investors.five9.com/.

About Five9

Five9 is a leading provider of cloud contact center software, bringing the power of the cloud to thousands of customers and facilitating more than three billion customer interactions annually. Since 2001, Five9 has led the cloud revolution in contact centers, helping organizations of every size transition from premise-based solutions to the cloud. Five9 provides businesses secure, reliable, scalable cloud contact center software to create exceptional customer experiences, increase agent productivity and deliver tangible business results. For more information visit www.five9.com.

CONTACT: Investor Relations Contact:
         
         Barry Zwarenstein
         Chief Financial Officer
         Five9, Inc.
         925-201-2000 ext. 5959
         IR@five9.com
         
         Lisa Laukkanen
         The Blueshirt Group for Five9, Inc.
         415-217-4967
         Lisa@blueshirtgroup.com