The story
1980: Matra Datavision, a French company, released the Euclid CAD system.
1987: Euclid-IS, the first integrated CAD/CAM system, appeared.
1993: Euclid 3 was released. This was a completely new and unique system that supported concurrent engineering. Euclid software made Matra Datavision a true market leader in the field of CAD/CAM. Euclid was employed in the widest variety of engineering domains, from general mechanical and automotive engineering to the complex robotics and aerospace industries.
1993: a development platform called CASCADE (Computer Aided Software for Computer Aided Design and Engineering) created by Matra Datavision was released. CASCADE had been used by Matra Datavision as a platform to develop Euclid Quantum.
1996: Matra Datavision released Euclid Quantum, a new generation of Euclid.
1998: Matra Datavision changed its strategy and became a software service provider. That year, the company signed an agreement with Dassault Systèmes to acquire some products from the Quantum product line, including Euclid Styler, Euclid Machinist, Strim, and more.
1999: Matra Datavision open-sourced CAS.CADE as Open Cascade, while focusing on rendering services around it.
2000: On December 7, Matra Datavision announced the foundation of Open Cascade SAS, its subsidiary for support and development of the Open Cascade platform as well as for carrying out numerous custom development projects for its customers.
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2003: Matra Datavision, the parent company, was purchased by IBM, while Open Cascade was acquired by Principia Research & Development – a French editor of finite-element solvers and provider of engineering services.
2004: The Open Cascade platform was renamed to Open Cascade Technology to avoid name confusion with the company itself (Open Cascade).
2007: Open Cascade SAS became a subsidiary of Euriware, which was a subsidiary of Areva Group.
2014: Euriware, the mother company of Open Cascade SAS, was purchased by Capgemini.
2015: Euriware was merged with Capgemini, and Open Cascade SAS became a direct subsidiary of Capgemini.
From Wikipedia’s article on Open Cascade, shared under CC BY-SA 4.0.5