Five9 Secures $12 Million 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

Business Wire, May 13, 2005

PLEASANTON, Calif. -- 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(TM) 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

Five9 is the leading global provider of hosted contact center solutions for customer interaction management. The award-winning Five9 Virtual Contact Center(TM) targets small- to midsized contact centers, branches of large enterprises and companies that provide outsourced call center services. Over 3,800 users on five continents profit from Five9's reliable, robust functionality that is fast, easy, and affordable to deploy for any contact center. For more information, visit www.five9.com.

About Partech International

Founded in 1982, Partech International is a leading global venture capital firm with $650M under active management and offices in the U.S., Europe and Israel. Partech invests exclusively in Information Technology and the firm's internationally integrated team of investing partners work together closely to find the most innovative companies demonstrating high return potential and disruptive technologies in the Software, Healthcare IT, Communications and Component sectors. Partech has a unique 20 year track record assisting its portfolio companies in becoming global market leaders. Some of Partech's successful investments include: Ascend Communications, Alvarion, Business Objects, Cadence, CSG Systems, Digital Island, Informatica, Pentasafe and Vignette.

About Hummer Winblad Venture Partners

Hummer Winblad Venture Partners was created in 1989 as the first venture capital firm focused exclusively on software. As the software industry grew from PC software to enterprise computing to Internet applications, Hummer Winblad has been at the forefront -- funding the entrepreneurs and ideas that helped define these markets. The firms' goal is to provide the capital, experience, and vision that will enable its companies to become leaders in this new software economy. For more information on Hummer Winblad, visit www.humwin.com

About Mosaic Venture Partners

Mosaic Venture Partners was founded with the mission of helping exceptionally talented entrepreneurs to build major technology enterprises. Mosaic undertakes a team-oriented approach in order to deliver a superior level of service to its portfolio companies and to build long-term value. Mosaic invests in both Canada and the United States, and focuses on early-stage investing in businesses where the partners have direct experience. For more information on Mosaic Venture Partners, visit http://www.mosaicvp.com