The first factory in Stara Zagora was established in 1996. It is located in a beautiful area near the clear waters of the river Suzlijka. The factory is located at 15,000 sq. m. and is specialized in the production of seasonal products and products reproducing homemade preparation.

The newly built factory in Stara Zagora is equipped with modern technological lines for producing quality food. The factory has a large warehouse base and eight shock-freezing chambers. It is set at 31000 sq. m.

The factory in Haskovo was founded in 1999. It is located at 26000 sq. m. It is specialized in the production of various canned foods. Automated production lines. The three factories Deroni are certified by all relevant European standards.

Deroni holds certificates: ISO 9001: 2015 - a system of quality management; ISO 22000: 2005 - a system of quality management and food safety; IFS certification - an International Food Standard;