 In 1948, he helped found the Rand Corporation and served as a trustee until 1959.In 1958 and 1959, he served as the 1st Chairman of the MITRE Corporation Board of Trustees.From 1959 through his death, Gaither was a general partner and co-founder of Draper, Gaither & Anderson, one of the first venture capital firms on the west coast of the U.S., together with William H. Draper Jr., a retired Army general and Frederick L. Anderson, a retired Air Force general.