Today, Aldi Süd and Nord operate more than 12,000 stores worldwide. In addition, Aldi Süd operates stores in the United States known by the Aldi brand of grocery stores. Aldi Nord also operates in the United States but is known as Trader Joe's.
Aldi Süd, known as Aldi in the United States, is formally owned by ALDI SÜD GmbH & Co. oHG. After Karl Albrecht passed away in 2014, ownership was passed to his two children, Beate Heister and Karl Albrecht Jr.
Aldi Nord, known as Trader Joe's in the United States, is formally owned by ALDI Einkauf GmbH & Co. oHG. After Theo Albrecht passed away in 2010, ownership was passed to his children and grandchildren.
Not only is Aldi not publicly traded, but Aldi owns all of its stores and does not franchise out. This makes it extremely difficult to invest in the Aldi brand.