Winterthur Group

On June 14, 2006, Winterthur and Axa announced the complete takeover of the Swiss insurance group for a price of 7.9 billion euros (= 12.3 billion CHF). Winterthur's foreign activities were dissolved into the Axa Group. The Swiss parent company of Winterthur was merged with the previous Swiss subsidiary of Axa and renamed AXA Versicherungen AG[3] at the end of March 2008. Under the Axa Winterthur brand identity, she covered the Swiss market for the Axa Group until February 28, 2018. Since March 1, 2018, the addition “Winterthur” has been omitted.

Wincasa was founded in 1999 as a subsidiary of Credit Suisse Group. It emerged from the merger of the real estate department of what was then Winterthur Insurance and the activities of Real Estate Asset Management of Credit Suisse. In 2021, Credit Suisse Group sold Wincasa AG to the real estate company Swiss Prime Site. The company in turn sold this to the construction group Implenia in 2023.