Visto Corporation Selected by AlwaysOn as
Top 100 Private Company Winner

Leading Push Email Provider Recognized for Excellence in Technology, Innovation, Growth and Value Creation

REDWOOD CITY, Calif., June 28, 2005 -- Visto Corporation, a leading global provider of secure push mobile email, today announced that it has been chosen by AlwaysOn as one of the Top 100 Private Company award winners. Visto was handpicked by the AlwaysOn editorial team based on a set of five criteria - innovation, market potential, customer adoption, media buzz and investor value creation.

The AO 100 was selected from over 1,000 companies, peer-nominated by leading venture capitalists, investment bankers and industry analysts. The AO 100 consists of private companies at all stages of development, from early to late stage.

Visto delivers the leading global platform for mobile operators to provide wireless push email to the broadest set of mobile devices. Visto's open solution enables email for the mass market, targeting large enterprises, small businesses, mobile professionals and consumers. The company's patented Visto MobileT platform with ConstantSyncT technology, a real-time push technology that ensures valuable corporate data is always up to date and never stored outside the firewall. Visto is challenging for market leadership, shortly to deliver ConstantSync support for more than 50 different wireless handsets and targeting a user base of some 10 million customers by 2007. Visto's customized, brandable solutions are available from over 15 of the leading mobile operators worldwide.

"The AO 100 companies are shaping today's web-driven, connected environment," said Tony Perkins, founder and editor of AlwaysOn. "We were inundated with nominations from leading companies, many of which I hope will appear on our list next year. My congratulations to each AO 100 winner - these are the companies which we predict will have the greatest market traction, strongest innovation and most game-changing approaches this year."

"The AO100 list has proved to be a bellwether of the companies and technologies that are leading the way in their respective industries, " said Brian Bogosian, chairman, president and CEO of Visto Corporation. "Our inclusion on this list is both an honor and an indication of the dynamic growth that Visto is experiencing in terms of customer traction, market reach and product innovation. We are confident that our technology leadership with more than 23 patents worldwide and our commitment to our customer's success will drive us toward becoming the leading global provider of push email and personal information."

The AO 100 will be honored at the AO2005: Innovation Summit at a VIP reception at 5.00pm on July 19, 2005 at the Frances C. Arrillaga Alumni Center on the Stanford University campus in Palo Alto, California.

About Visto
Visto delivers the leading global platform for mobile operators to provide wireless push e-mail to the broadest set of mobile devices. Visto's open solution enables e-mail for the mass market, targeting large enterprises, small businesses, mobile professionals and consumers. The company's patented Visto MobileT platform with ConstantSyncT technology works in real time with POP3, IMAP, Microsoft Exchange and Lotus Domino e-mail solutions for personal to enterprise use, providing maximum control and flexibility for the operator and choice for the customer. Visto's customized, brandable solutions are available through mobile operators worldwide including Cingular, Elisa, KPN, Manitoba Telecom Services, Nextel Communications, Inc., Rogers Wireless, SaskTel Mobility, SmarTone, SFR, TELUS Mobility, Vodafone, Vodafone Germany, Vodafone Greece, Vodafone Italy and Vodafone Spain.

Established in 1996 and headquartered in Redwood Shores, California, with offices in Seattle, London, Rome, Paris, Toronto, Tokyo, Beijing and Tianjin, China, Visto is backed by Oak Investment Partners, Draper Fisher Jurvetson, VantagePoint Venture Partners, Meritech Capital Partners, Rustic Canyon Ventures, Allegis Capital and Blueprint Ventures. For more information, visit www.visto.com or e-mail sales@visto.com.

©Copyright 2008.

Visto Corporation, Visto, the Visto logo, Visto Mobile, ConstantSync, Constant Synchronization and worklife.freedom are either trademarks or registered trademarks of Visto Corporation. All third-party trademarks, trade names, or service marks are the property of their respective owners and are used only to refer to the goods or services identified by those third-party marks. Visto's technology is protected by U.S. Patents 7,228,383; 7,225,231; 7,039,679; 6,085,192; 5,968,131; 6,023,708; 5,961,590; 6,131,116; 6,151,606; 6,233,341; 6,131,096, 6,708,221 and 6,766,454 and various other foreign patents. Other patents pending.

All third-party trademarks, trade names, or service marks used herein are the property of their respective owners and are used only to refer to the goods or services identified by those third-party marks.