Aldi
  Aldi Süd and Aldi Nord logos | |
 Aldi Süd in Franklin, North Carolina, U.S. | |
| Type | Private |
|---|---|
| Industry | Retail |
| Founded | 10 July 1946 (split in two parts in 1960, renamed to Aldi Nord and Aldi Süd in 1962) |
| Founders | Karl and Theo Albrecht |
| Headquarters | Essen, Germany (Aldi Nord) Mülheim, Germany (Aldi Süd) |
Number of locations | 13,600 (2026) |
Area served | Europe
United States Australia China |
| Products | |
| Revenue | Aldi Nord: 31 billion € (2025)Aldi Süd: 89 billion € (2024)Trader Joe's: 21.5 billion $ (2025) |
Number of employees | Aldi Nord: 90,000 (2025) Aldi Süd: 203,146 (2024) Trader Joe's: 50,000 (2025) |
| Subsidiaries | Trader Joe's (Aldi Nord) |
| Website | aldi.com aldi |
Aldi (German pronunciation: [ˈaldiː] ⓘ, stylised in all caps) is the common company brand name of two German multinational family-owned discount supermarket chains operating over 13,600 stores in 18 countries. The business was founded by brothers Karl and Theo Albrecht in 1946, when they took over their mother's store in Essen.
The enterprise was split into two separate groups in 1960 that later became Aldi Nord (initially operating in northern West Germany), headquartered in Essen, and Aldi Süd (initially operating in southern West Germany), headquartered in neighbouring Mülheim. As the business expanded internationally, the two divisions maintained this separation, dividing global markets between them, with the exception of the United States, where both operate: Aldi Süd under the Aldi name, while Aldi Nord owns Trader Joe's.
In 1962, they introduced the name Aldi (a syllabic abbreviation for "Albrecht Diskont"). In Germany, Aldi Nord and Aldi Süd have been financially and legally separate since 1966, although they may appear to operate as a single enterprise with certain store brands or when negotiating with contractor companies.
Aldi is the main competitor of the German discount chain Lidl in most markets.