Juan Luis Undurraga Aninat, one of the founders, acquired the shares of other investors allowing him to control more than 40 percent of the company.

In 1986, the New Zealand Dairy Board, now part of Fonterra, acquired more than 50 percent of Soprole's shares, giving it majority control.

Under the control of the New Zealand Dairy Board, Soprole bought out some of its competitors like Lácteos Pirque in 1994 and Dos Álamos in 1997.

Today, 76 percent of the Chilean dairy market is controlled by four companies: Nestlé, Soprole, Loncoleche and Colún.

In November 2022, the Grupo Gloria Inc, a Peruvian corporation of foods, buys Soprole's supply in its entirety for USD 210 million.