Aldi since 2009. Aldi Aldi (stylised as ALDI) is the common brand of two German family owned discount supermarket chains with over 10,000 stores in 20 countries, and an estimated combined turnover of more than €50 billion. Based in Germany, the chain was founded by brothers Karl and Theo Albrecht in 1946 when they took over their mother's store in Essen, which had been in operation since 1913. The business was split into two separate groups in 1960, that later became Aldi Nord, headquartered in Essen, and Aldi Süd, headquartered in Mülheim. In 1962, they introduced the name Aldi (a syllabic
Dia (supermarket chain) 2000 to 2011, Dia was part of the Carrefour Group but following its spin-off it became independent and debuted in Madrid's IBEX 35 stock market on 2 January 2012. The Dia Group purchased the operation of Schlecker (including its 1,127 stores in Spain and 41 stores in Portugal, and four distribution centers) for 70.5 million Euros. In 2014, Dia sold the whole of its business in France to Carrefour for 600 million euros. Although the shops retain the Dia name and logo, Carrefour own-brand products are increasingly replacing Dia's. Dia (supermarket chain) Distribuidora Internacional de Alimentación, S.A. (DIA) is a