Intergraph
Intergraph was founded in 1969 as M&S Computing, Inc., by former IBM engineers who had been working on the Saturn rocket for the Apollo program. M&S Computing assisted NASA and the U.S. Army in developing systems that would apply digital computing to real-time missile guidance. In 1980, M&S Computing changed its name to Intergraph Corporation, reflecting its involvement in interactive graphics. The first interactive CAD system, Intergraph Graphics Design System (IGDS) quickly became an industry benchmark, and the basis for the MicroStation file format, the PC-based CAD product owned by Bentley Systems, of which Intergraph was a part-owner.
In 2000 Intergraph exited the hardware business and became purely a software company. On July 21st 2000, it sold its Intense3D graphics accelerator division to 3DLabs, and its workstation and server division to Silicon Graphics.
On November 29, 2006, Intergraph was acquired by an investor group led by Hellman & Friedman LLC, and Texas Pacific Group and JMI Equity, making the company privately held.