Donna Dubinsky (born July 4, 1955) is an American businesswoman who played an integral role in the development of personal digital assistants (PDAs) serving as CEO of Palm, Inc. and co-founding Handspring with Jeff Hawkins in 1995. Dubinsky co-founded Numenta in 2005 with Hawkins and Dileep George, based in Redwood City, CA. Numenta was founded to develop machine intelligence based on the principles of the neocortex.