Zuken Inc. (株式会社図研, Kabushiki-gaisha Zuken) is a Japanese multinational corporation, specializing in software and consulting services for end-to-end electrical and electronic engineering.

Zuken came into existence as a pioneer in the development of computer-aided design (CAD) systems in Japan to contribute to electronics manufacturing.

Established in 1976 in Yokohama, Japan, it is listed on the Tokyo Stock Exchange;[1] net sales were US$216 million for the year 2011.

Zuken's software is used mainly to design printed circuit boards (PCBs), multi-chip modules, and to engineer electrotechnical, wiring, wiring harness, pneumatics and hydraulics applications.

The company's key markets are the electronics industry – which includes digital home electrical appliances; mobile communications devices; transportation equipment, such as automobiles, special vehicles and railroads; industrial equipment, such as medical equipment and devices; and construction machinery.