At the experimental fields the company tests various technologies and sorts and works successfully with almost all the companies operating on the Bulgarian market. Joint experiments are carried out, hybrids, pesticides and fertilizers are tested. One of the largest experimental grounds is established in cooperation with Sindjenta Company for maize, sunflower and rapeseed growing, and this year wheat is grown, too. At the said experimental field a technology of growing and pesticides of the said company are used, too.

ЕТ „HELGA-Svetla Stoyanova”  works in cooperation with Pioner Company, too – for hybrids of maize and sunflower, as well  Express Technology for sunflower growing;  with KVC Company – for maize, sunflower, rapeseed, and wheat, too;  with Limagrain Company – maize, sunflower, wheat, barley and rapeseed; with Dupont Company – pesticides used in growing of maize, rapeseed and wheat; with Sumiagro, Monsanto – for experiments with Austrian wheat.