Henry Pierre's son, Alfred Henry "Freddy" Heineken, started working at the company in 1940, and 1971 was appointed Chairman of the Executive Board. He was a powerful force behind Heineken's continued global expansion, and while he retired from the Executive Board in 1989, he maintained involvement with the company until his death in 2002.
During this period, Heineken tried to increase its stock price by purchasing competing breweries and closing them down. After World War II, many small breweries were bought or closed. In 1968 Heineken merged with its biggest competitor, Amstel, and in 1975 opened a new brewery in Zoeterwoude. The Amstel brewery was closed in 1980, and its production moved to Zoeterwoude and Den Bosch.