As of 2024, Unibail-Rodamco-Westfield is the largest commercial real estate company in Europe,[1] and is a component of the Australian ASX 50, Euro Stoxx 50 stock market index, as well as the French CAC40.

In collaboration with CEO and chairman of the board Guillaume Poitrinal, he led the company to five years of growth in spite of tough economic conditions.

[12] In May 2015, Unibail revealed it had signed an agreement with the Canada Pension Plan Investment Board to sell its 46.1% stake in German shopping mall operator MFI AG for €394 million.

[14] The deal was completed in June 2018, and the shopping centres owned by Unibail-Rodamco before the merger had their names modified to have the Westfield brand, with 10 flagships starting in September 2019.

Dyer remained on the board but was replaced as chairman by former Unibail CEO Leon Bressler, one of a consortium of shareholders and investors who had opposed the capital increase and other proposed strategies.

[20] Unibail-Rodamco-Westfield owns 87 shopping centers (as of April 2021) in the main cities of the countries where it operates, 97% of which attract more than 6 million visitors per year.