Synergy Group Corp. is a
South American conglomerate created and owned by
Germán Efromovich, an entrepreneur holding
multiple citizenship of
Brazil,
Colombia and
Poland. The group is headquartered in
Rio de Janeiro, Brazil. It operates several
airlines in
South America, among which are
Avianca Holdings, with a 66.66% stake, and is active in the exploration of
oil and
natural gas throughout the region. Additionally, it operates
hydroelectric power plants, participates in the construction of
telecommunications infrastructure, shipbuilding and technical inspections, radiochemistry, radiopharmaceuticals, agriculture and hospitality.