Daisy Systems Corporation, incorporated in 1981 in Mountain View, California, was a computer-aided engineering company, a pioneer in the electronic design automation (EDA) industry. It was a manufacturer of computer hardware and software for EDA, including schematic capture, logic simulation, parameter extraction and other tools for printed circuit board design and semiconductor chip layout. In mid-1980s, it had a subsidiary in Germany, Daisy Systems GmbH and one in Israel. Daisy Systems was founded by and ; its original investors were Fred Adler and Oak Investment Partners.