Interleaf was founded by David Boucher and Harry George in 1981. Boucher served as chief executive officer from 1981 until 1992; George served as chief financial officer. Earlier, both were among the founders of Kurzweil Computer Products. Other early personnel came from NBI and Wang Labs. The company initially produced "turnkey" systems, that is, combinations of hardware and software integrated by the company. It initially ran on workstations from Sun Microsystems and Apollo Computers, but later ported its software to workstations made by Digital Equipment Corporation, HP, IBM and SGI, and later still, to the Apple Macintosh II and the IBM Personal Computer.