Archidoron was established in 1960 as a joint venture between Greece’s two largest construction companies, Archimedes (Chairman Constantinos Karpidas) and Odon and Odostromaton (Chairman the late Theodore Constantopoulos). The new Athens-based firm soon expanded beyond national boundaries to become a diversified group of companies with wide international recognition for providing high-level services and for its dynamic growth and accomplishment in a variety of fields.