Intergraph
Intergraph (originally M&S Computing, founded 1969 in Huntsville, Alabama by Jim Meadlock and four other ex-IBM/NASA engineers) was a pioneer of interactive graphics and one of the first vendors to ship interactive CAD outside the workstation graphics-terminal era. It released Solid Edge on Windows NT in 1995, established standards in GIS, AEC, and process-plant design, and was acquired by Hexagon AB in 2010 for approximately $2.1 billion. Solid Edge was sold to Siemens ahead of the Hexagon transaction.
Why it matters
Intergraph is the reason interactive CAD looked recognizable on a PC at all. Without the M&S Computing/Intergraph wager that the spreadsheet-and -report architecture of mainstream computing was wrong for engineering, the parametric MCAD wave of the late 1990s would have lacked the interactive-graphics primitives it took for granted. Solid Edge's survival inside the Siemens portfolio is also why mid-market MCAD on Windows still has a competitive German-aligned alternative to SolidWorks today.
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Cite this definition
Finocchiaro, Michael. “Intergraph.” DemystifyingPLM PLM Glossary, 2026, https://www.demystifyingplm.com/glossary/intergraph