Roger J. Sippl (born February 22, 1955), an American entrepreneur in the computer software industry, was described in 2012 by The Wall Street Journal as a serial entrepreneur. Sippl was the founder and CEO of Informix Corporation, later becoming IBM Informix. Other sippl accomplishments included being co-founder and chairman of Vantive, and the CEO and founder of Visigenic: three companies he took public. Currently, he is the CEO of Elastic Intelligence located in Menlo Park, California.