IMSI/Design
IMSI/Design is a software company known for CAD and home design products.
Last updated September 1, 2026
Overview
IMSI Design is a leader in affordable, general-purpose CAD and home design desktop software, and a pioneer in mobile solutions for the AEC industry. With over 16 million products distributed since 1983, IMSI's products include the TurboCAD, DesignCAD, and FloorPlan families of precision design applications for Windows and Mac.
History
IMSI started its operations as a software publisher in 1983. Initially, IMSI published business productivity titles, including one computer graphics application, 4-Point Graphics. For the next seven years, IMSI continued down the publisher path, employing no software developers but narrowing its focus on applications to those in the Computer Graphics space. IMSI started to sell CAD software in 1988, when it licensed and began private-labeling the program ProDesign under the name IMSI Designer. A year later, IMSI began reselling TurboCAD, a product developed in South Africa and sold in North America by a company called Milan Systems. In 1990, IMSI acquired Milan Systems, and with it, the exclusive North American sales rights to TurboCAD. From there, IMSI purchased global sales rights and then finally the source code, thereby beginning, in 1990, its role as both a publisher and a software developer.
Sources
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