Aldi is a common brand name for two German family-owned discount supermarket chains, Aldi Nord and Aldi Süd, which operate over 12,000 stores in 18 countries. The company was founded in 1946 by brothers Theo and Karl Albrecht and has been financially and legally separate since 1966. The name Aldi is derived from Albrecht Diskont. Aldi Nord and Aldi Süd have contractual business relationships with each other, but they are independently owned and operated. Aldi's German operations consist of Aldi Nord's regional companies with about 2,200 stores and Aldi Süd's regional companies with 2,000 stores. aldi.com aldi.us aldi.de