Alstom serves the power generation and transmission markets, and rail transport market. Co.'s activities are divided into four sectors: the Thermal Power Sector (Co. offers power generation solutions using gas or coal to services including plant modernization, maintenance and operational support); the Renewable Power sector offers EPC solutions, turbines and generators, control equipment and maintenance for Hydropower and Wind power activities; the Grid Sector designs and manufactures equipment and turnkey solutions to manage power grids and transmit electricity from the power plant to the large end-user; and the Transport Sector provides rail transport products, systems and services.

RegistrarFresenius Medical Care is a kidney dialysis company, operating in both the field of dialysis services and the field of dialysis products for the treatment of end-stage renal disease (ESRD). Co.'s dialysis business is vertically integrated, providing dialysis treatment at dialysis clinics it owns or operates and supplying these clinics with a range of products. In addition, Co. sells dialysis products to other dialysis service providers. In the U.S.A., Co. also provides inpatient dialysis services and other services under contract to hospitals. Co. provides patient services, including renal pharmaceutical products and in the U.S.A., laboratory services.

Salini Impregilo is engaged in the water segment. Co. is organised according to the distribution of its activities into its various segments: Corporate, which is engaged in the coordination and supervision of Impregilo S.p.A.'s main investments; Construction, which consists of the business headed by Impregilo S.p.A.; Concessions, which consists of the business coordinated by Co.'s subsidiary, Impregilo International Infrastructures B.V. (the Netherlands) and carried out through subsidiaries, jointly controlled entities and associates; as well as Engineering & Plant Construction, which consists of the business headed by FISIA Italimpianti and FISIA Babcock Environment (Germany).