Intergraph Corporation is an American software development and services company. It provides enterprise engineering and geospatially powered software to businesses, governments, and organizations around the world. Intergraph operates through two divisions: Process, Power & Marine (PP&M) and Security, Government & Infrastructure (SG&I). The companys headquarters is in Huntsville, Alabama, USA. In 2008, Intergraph was one of the hundred largest software companies in the world.