Signum Contract born about 25 years ago from an idea of Lucio Passarelli, the concept that expressed was tied to a philosophy that would bring in a 'unique direction as needed and competed the construction of turnkey facilities. After an intense period of work, it was decided to place it in Standby to give the possibility to Tendarredo to meet the demands of the market that absorbed all the energy work. In 2005 it was reactivated activity Signum Contract inserting in the organic Tendarredo organizational structure, which is why you added the word Group. In 2010, giving way to an international, Signum Contract Group successfully participated in the International Fair of Dubai. Today Signum Contract Group is one of the most dynamic organizations operating in the Contract turnkey.