The medusa ransomware group listed Concremat constructions on its data leak site on 2023-06-05. Country: BR Sector: Manufacturing Domains named: concremat.com.br Claim as published on the leak site: Founded in 1972 and headquartered in Rio de Janeiro, Concremat Companies provides construction and engineering services. The company offers services such as urban and regional development studies, environmental management systems, and a sustainable development plan for territories