TSN Group provides a full range of professional engineering services as design and build contractor in the field of M&E systems for commercial, residential, industrial, infrastructure projects and in hospitality industry; as well as the delivery and commissioning of electrical and mechanical equipment according to high international standards and technologies. Our services comprise everything from planning up installation and start-up: feasibility studies and master plans special planning (design of HVAC and electrical systems) cost estimation M&E contractor (delivery, installation and start-up) Founded in St-Petersburg, Russia, in 1995, TSN Group is nowadays composed of several companies that together employ about 950 people. Total surface of projects done with TSN’s participation ascends to more than 9,000,000 sq. m.