Belje has more than 4,000 cows on the dairy farms, which gave 35 million litres of milk in 2015. One of the farms that should be particularly mentioned is Mitrovac, which is one of the biggest farms of this type in Croatia and which, together with the biogas power plant and greenhouse for tomato production, comprises the agricultural complex worth HRK 220 million.

Topolik farm is the biggest automated dairy farm in Europe, with six robots and a total capacity of 500 cows. Belje dairy farms produce top quality locally produced milk, which is used for producing the world-renowned Belje cheeses and ABC fresh cream cheese, which has been regarded as the best cheese spread in the whole region for 35 years.