The story
Cassa di Compensazione e Garanzia S.p.A. was established in March 1992.
Euronext acquired CC&G together with the rest of the Borsa Italiana Group from London Stock Exchange Group in April 2021. On 9 November 2021, Euronext announced that it would expand CC&G into Euronext Clearing and made it the preferred CCP for all its markets in equities, listed derivatives and commodities.
From Wikipedia’s article on Euronext Clearing, shared under CC BY-SA 4.0.4