Five9 Recognized by 4th Annual ContactCenterWorld.com Members' Choice Awards

Five9 Virtual Call Center Suite™ wins in Internet Telephony and CRM categories

PLEASANTON, Calif. — April 18, 2006 — Five9, Inc., the leading global provider of on-demand telemarketing, customer service, and call center solutions for customer interaction management, today announced that ContactCenterWorld.com, a global support organization for contact center industry professionals, has named the Five9 Virtual Call Center Suite™ a recipient of the Members' Choice Award for two categories - Best CRM Solution and Best Internet Telephony Solution. Established in 2002, the Members' Choice Awards recognize industry solution providers who sell products or services to contact centers. Winners are organizations who receive the highest average scores as voted for by their customers.

"Our goal at Five9 has been to provide the best on-demand call center solution possible so that organizations of any size can afford, and benefit from the powerful combination of telephony and CRM capabilities," said Brian Silverman, president and CEO of Five9. "We are honored to receive these awards, and feel especially pleased to be recognized by our customers."

Commenting on the awards and the winners, Raj Wadhwani, President of ContactCenterWorld.com added, "The 4th Annual Member's Choice Award winners deserve special recognition. These organizations put themselves out for their customers to give them feedback. These organizations are proud of what they do and there are so many who consistently enter the awards. These are the industries true leaders and they all deserve praise."

About The Members' Choice Awards
Launched in the summer of 2002, the Members' Choice Awards is an independent awards program where users vote for their favorite solution providers on a regional basis. There are no judges and no panels. Each award is based on the overall quality of all votes received.

About ContactCenterWorld.com
ContactCenterWorld.com is the world's no.1 on-line resource site for the contact center industry around the world. We currently have over 85,700 corporate members of which 40% are at a senior executive level within Contact Centers globally. The quality content on our site is what draws 7,500 unique users to us every day. For more details visit http://www.ContactCenterWorld.com

About Five9, Inc.

Five9 is the leading global provider of on-demand call center solutions for customer interaction management. The award-winning Five9 Virtual Call Center™ targets small- to midsized call centers, contact center operations of large enterprises, and companies that provide outsourced call center services. Companies on five continents profit from Five9's reliable, robust functionality that is fast, easy, and affordable to deploy for any call center. For more information, visit http://www.five9.com.

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