Gruppo Snam S.p.A.

Ansaldo Nuclear Engineering Services Ltd. designs and manufactures safety critical engineered products. The firm also offers project management, engineering services, manufacture and assembly, procurement services, test and commissioning, and installation services. The company was founded by Brett Cooper in 2003 and is headquartered in Wolverhampton, the United Kingdom.

Vard Promar SA constructs offshore and specialized vessels for use in oil and gas exploration, oil production and service industries. The company was founded on August 13, 2009 and is headquartered in Ipojuca, Brazil.

Vard Electro AS is a Norwegian company that takes pride in building ships and maintaining strong partnerships with ship owners. The company is based in Sovik, Norway. The company utilizes their innovation power to meet the changing needs of the world by providing modern shipbuilding facilities, new vessels, products, and services. The company's shipyards offer ship repair and conversion services for all types of sailing vessels. With over four decades of shipbuilding experience, they simplify the shipbuilding process for their customers by offering integrated innovative products and services through their network of highly specialized subsidiaries. The company is ultimately controlled by the Government of Italy.

Part of SNAM SpA, Snam International BV is an investment holding Dutch company. The company is based in Amsterdam, Netherlands.

Part of SNAM SpA, Gasrule Insurance DAC is an Irish company that provides insurance services. The company is based in Dublin, Ireland.

Snam Rete Gas SpA provides natural gas transport and dispatching services. The firm's focus areas encompass integrated natural gas transportation, energy investment plans, and transmission network management. It specializes in the development and operation of its regional and national networks, compressor stations, and dispatching centers. The company was founded in November 15, 2000 and is headquartered in San Donato Milanese, Italy.

Stoccaggi Gas Italia SpA provides gas storage services. The company is headquartered in San Donato Milanese, Italy.

Residenziale Immobiliare 2004 SpA engages in property management activities. It owns and manages public properties in the province of Rome which include educational institutes and plazas. The company is headquartered in Rome, Italy.

CDP Reti SpA operates as an investment company. The company was founded in October 2012 and is headquartered in Rome, Italy.

Fincantieri Infrastructure SpA is one of the world's largest shipbuilding groups, known for its diversification and innovation. The company is based in Valeggio sul Mincio, Italy. Fincantieri is ultimately controlled by the Government of Italy. The CEO of the Italian company is Marcello Sorrentino.

Fincantieri Nextech SpA provides system integration, electronic and informatics services. The firm serves defense, aerospace, industrial and transport sectors. The company was founded in 1989 and is headquartered in Follo, Italy.

Sof SpA provides facility management and energy efficiency services. It serves the plant management, real estate, energy, and thermal sectors. The company was founded in 2004 and is headquartered in Florence, Italy.

Isotta Fraschini Motori SpA designs and manufactures diesel engines. The company was founded in 1900 and is headquartered in Bari, Italy.

Part of Orione SRL, Alfiere SpA is a leader in the Italian property development sector. The company is based in Rome, Italy. Alfiere is a subsidiary of CDP Immobiliare, which is wholly owned by Cassa Depositi e Prestiti S.p.A. The Italian company manages a database of properties for sale and provides information on the procedures for making purchase offers.

Ansaldo Energia SpA is engaged in the power generation industry. It provides heavy duty gas turbines offering complete maintenance solutions on power generation rotating equipment and plants. The firm’s services include OEM platform, field service, repairs, and integrated plant support. The company was founded in 1853 and is headquartered in Genoa, Italy.

FSI Investimenti SpA is a fund created as a result of a partnership between Fondo Strategico Italiano SpA and Kuwait Investment Authority. It will invest in companies located in Italy that operate in sectors such as defense and security, infrastructures, transport, communications, energy, public services and hi-tech research and innovations.