William "Bill" Millard (born 1932) is the founder of IMS Associates, makers of the IMSAI series of computers and the electronics retailer ComputerLand.

[1] William H. Millard worked for IBM and, later, as the head of data processing for the city and county of San Francisco.

In 1969, together with his wife, Millard started a software publisher company called Systems Dynamics, which went bankrupt in 1972.

To finance rapidly growing operations, IMSAI pledged 20% of its stock as convertible note in exchange for $250,000 from investment firm Marriner & Co.

[1] Legal troubles from the failure of IMS, centered largely on a convertible note from the Marriner partnership that was later sold to a group of investors, led to a lawsuit in which Millard lost a substantial portion of his stake in ComputerLand.