Fernando de Queiroz Galvão

Constellation Oil Services Holding SA provides oil and gas contract drilling, floating production storage and offloading services. The firm carries out operations through sole segment, Oil and Gas Drilling Services. Its drilling services include ultra-deep water and deep water drilling rigs operations. The company also deals with oil production, storage and exportation. The company was founded in April 1980 and is headquartered in Luxembourg.

Construtora Queiroz Galvão SA provides construction and engineering services. It undertakes various projects, including dams, airports, bridges, tunnels bridges, power plants, roads, buildings, and industrial assembly services. The company was founded by Antonio Augusto de Queiroz Galvão, Dario de Queiroz Galvão, João de Queiroz Galvão and Mário de Queiroz Galvão in 1953 and is headquartered in Rio de Janeiro, Brazil.

Enauta Energia SA explores and produces oil and gas. It also provides charter ships, drilling rigs, production projects, and construction of vessels and platforms. The company was founded in 1953 and is headquartered in Rio de Janeiro, Brazil.

Queiroz Galvão Naval SA engages in engineering, construction, assembly, repair services of ships and other naval products. It also deals with construction of offshore platforms, site deployment, ship conversions, and integration for floating units of oil production. The company was founded on March 27, 2013 and is headquartered in Rio de Janeiro, Brazil.