Intergraph Corporation was an American software development and services company, which now forms part of Hexagon AB.

Intergraph was founded in 1969 as M&S Computing, Inc., by former IBM engineers Jim Meadlock, his wife Nancy, Terry Schansman (the S of M&S), Keith Schonrock, and Robert Thurber who had been working with NASA and the U.S. Army in developing systems that would apply digital computing to real time missile guidance.

[4] One of Intergraph's major hardware projects was developing a line of workstations using the Clipper architecture created by Fairchild Semiconductor.

In 1997, Intergraph began pursuing patent infringement litigation against Intel and other computer hardware manufacturers based on the intellectual property developed in Clipper.

Intergraph negotiated major settlements with Intel,[5] HP,[6] Texas Instruments[7] and Gateway,[8] earning the company over $394M.