Konzum is Croatia's largest supermarket chain with just over 600 stores open in Croatia and has more than 10,000 employees. Its headquarters are in Zagreb. Konzum stores can also be found in Bosnia and Herzegovina, and Serbia. Konzum receives over 500,000 customers each day. Konzum also operates a chain of drugstores known as KOZMO, there are currently 56 KOZMO stores. Konzum is part of the Agrokor company.

The first Konzum store was opened in Zagreb, in the year 1957. When Konzum first opened, it was known as Unikonzum. Since then it has expanded into Croatia's biggest supermarket chain, Its business has grown a lot since Croatia broke off of former Yugoslavia. Konzum joined the Agrokor group in 1994.

In 2002, Konzum completed the acquisition of Alastor, the third largest food retailer in Croatia.

In 2008, Konzum had a turnover of 13.9 billion kuna (1.9 billion euro).

K Plus is the value product brand of Konzum. Food and household products are sold at affordable prices under the brand.

Konzum stores are named Konzum, Konzum Maxi, or Super Konzum according to their sizes.