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News Release

Five9 Secures $12M Series B Funding

Partech International leads round for provider of hosted contact center solutions; joined by series A investors Hummer Winblad Venture Partners and Mosaic Venture Partners.

PLEASANTON, Calif. (May 13, 2005) - Five9, Inc., the leading provider of hosted contact center solutions, today announced the completion of $12 million Series B funding with Partech International leading the round, joined by existing investors Hummer Winblad Venture Partners and Mosaic Venture Partners. This round brings the total amount of funding the company has received to date to $17 million. Five9 will use the funding to spearhead its international expansion and sales efforts, expand marketing efforts and continue to expand on its already leading-edge technological platform and services offering.

"This funding will enable us to capitalize on the growing awareness of, and demand for, hosted contact center services and to continue to internationalize our product and operations," said Brian Silverman, President and CEO of Five9, Inc. "With recently opened offices in Canada, India, Mexico and the Philippines, we are continuing to look at new territories and ways to best serve our new and existing customers. We are delighted by the support of our current and new investors, and look forward to further capitalizing on their value add, to take the company to the next level."

The Five9 Virtual Contact Center" enables companies of any size to build a comprehensive, feature-rich contact center - anywhere in the world - without any hardware, software, or upfront capital expenditures. In addition to the cost savings, Five9's on-demand service allows for easy set-up and administration of at-home agent workforces as well as singular or distributed, multi-site centers to act as one, regardless of geographic location.

"Our investment in Five9 reflects our confidence in the management of the company and the validity of its business model," said Dave Welsh, General Partner of Partech International. "The cost savings and productivity enhancements associated with the company's hosted VoIP based monthly subscription service make Five9's solution very attractive, and the opportunities for partnerships and product advancements will continue to differentiate Five9 from the rest of the industry."

Welsh will join Five9's Board of Directors.

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

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