Al Sisto is Executive Chairman of CertiVox and brings more than 40 years of experience in the high-tech industry. Mr. Sisto is also a Venture Partner with Nauta Capital and a General Partner of Sixth Bridge L. P., where he serves as an investor and business advisor to private companies. Sisto is currently Chairman of Acctuall, Inc. and previously served as Chairman and CEO of Hifn. He was also Chairman, President and CEO of Phoenix Technologies and COO of RSA. Mr. Sisto holds a B.S. in Engineering from the Stevens Institute of Technology.