Down through the years, Deco, aiming to provide increasingly efficient and precise services, has optimized its resources through the establishment of companies and the acquisition of shareholdings in other companies, chosen specifically according to the sector of intervention or territorial framework involved.

Plant engineering is the core business of Deco, which designs, constructs, and manages waste disposal and recovery plants, including systems for the production of energy. Thanks to these specific skills, Deco is the majority partner of important private companies, such as Ecologica Sangro, which builds and runs disposal and recovery plants in the Lanciano (Chieti) basin, and Abruzzo energy, operating in the sector of biomass energy recovery and WDF (waste-derived fuels).

Thanks to these specific skills, Deco is a partner of important companies, such as: