NOS Sistemas is a Portuguese IT infrastructure company within the NOS Group, providing cloud infrastructure, data center, IT management, security and technology outsourcing services. Its data center operations support enterprise customers through NOS's geographically distributed facilities. The company operates three publicly disclosed data centers: Imopolis 1 and Imopolis 2 in Greater Lisbon, and DC Norteshopping in the Porto metropolitan area. In 2025, these facilities had installed IT equipment capacity of 1.257 MW, 1.270 MW and 0.510 MW respectively, giving a combined approximately 3.04 MW. NOS Sistemas also provides housing, hosting, storage and disaster recovery services, supporting enterprise cloud and digital infrastructure requirements across Portugal.