Sigma is parent company of ATEN IS Group, an Advanced Technology Network established in 2013 in order to develop, produce and sell products, services and high-tech systems in the aerospace, ICT, electronics and telecommunications sectors. ATEN IS Group currently consists of 32 companies and two research institutes and two Rome Univerities.

ATEN IS has established international partnerships with Brazil, Peru, Chile, Ecuador, Bulgaria, China, India, Korea.