Trader Joe's is a German-owned American chain of grocery stores headquartered in Monrovia, California. By 2015, it was a competitor in "fresh format" grocery stores in the United States. By November 2019, Trader Joe's had over 503 stores nationwide in 42 states and Washington, D.C.
The first Trader Joe's store was opened in 1967 by founder Joe Coulombe in Pasadena, California. It was owned by German entrepreneur Theo Albrecht from 1979 until his death in 2010, when ownership passed to his heirs. Albrecht's family also owns the German supermarket chain Aldi Nord which, according to Trader Joe's management, operates independently. Aldi Süd, owned by another branch of the Albrecht family, operates separately in the U.S. under the Aldi name and logo, but has no business relationship to Trader Joe's. The company has offices in Monrovia, and Boston, Massachusetts.