The story
Starting business as the Smart Card and Terminal Department of Schlumberger, after Schlumberger purchased Sema Group, it was merged with the latter to form SchlumbergerSema.
When Schlumberger sold the IT services business of SchlumbergerSema to Atos Origin, the Smart Card and Terminal Department was again spun off to become Axalto, which went public in 2004, with its initial public offering.On December 7, 2005, Axalto announced its merger plan with main competitor Gemplus International. On May 19, 2006, the European Commission approved the merger between Axalto and Gemplus, leading to the creation of the new company Gemalto, on June 2, 2006.
From Wikipedia’s article on Axalto, shared under CC BY-SA 4.0.4