Adderley Navigation Company Panama S.A. was formed in 1963. It was a type-C company mainly engaged in shipping and owner of the vessel Olympic Pride. After 1975 the company passed to the Christina Onassis Group of companies owned by ATOL and managed by OMSA. After 1999 the ownership of Christina Onassis Group of Companies passed to her daughter Athina Onassis. The management of the companies was still held, separately from the Alexander S. Onassis Foundation Companies, until 1999. The company was dissolved in 2000.
Aguadilla Marine Panama S.A. was formed in 1973. It was a type-D company acting as financial representative.
Alameda Marine Panama S.A. was formed in 1968. It was a type-D company acting as financial representative.
Albany Finance Corporation was formed in 1976. It was a type-C company mainly acting as intermediate holding company. In 1976 it belonged to United Investments Panama S.A. and in 1988 to International Finance Panama S.A.. The company was bearer of shares of Athina Roussel patrimony. This new company was formed after the division of the Onassis assets and the restructuring of the companies to serve the needs of the Christina Onassis group, which was managed separately by OMSA and separately from the Alexander S. Onassis Foundation's companies.
Alex. S. Onassis S.A. was formed in 1970. It was a type-G company acting as passive company.
Alexander S. Onassis Corporation was formed in 1957. It was a type-C (and sometimes type-B company acting as intermediate holding company) mainly engaged in shipping. It was the owner of the vessels Arickaree, Battle Rock, Camp Namanu, Federal, Fort Bridger, Lake George, McKittrick Hills, Montebello Hills, Republic, Stony Point, William A.M. Burden, Heywood Broun, Lewis Emery Jr.
All Seas International S.A. was formed in 1969. It was a type-C company mainly engaged in shipbuilding as shareholder of Harland & Wolf Shipyards.
Andes Financiera Maritima S.A. was formed in 1956. It was a type-C company mainly engaged in insurances. In 1966 owned shares of the Societe Des Forges & Chantiers de la Mediterranee and of the Societe Anonyme des Bains de Mer et du Cercle des Etrangers a Monaco. In 1969 owned 258.461 shares of British Petroleum Company. In 1970 owned 1.250 shares of the company Hellenic Ship & Aircraft Insurance Company S.A., which was founded in 1964. Before 1975 also owned Waaiagat & Jaymount Portfolio of F.C..M., B.P, Hellenic Ins. Shares. After 1975 it converted to a type-B company, acting as intermediate holding company and also engaged in real estate.
Arapey Financiera Panama S.A. was formed in 1961. It was a type-C company mainly engaged in shipping and owner of the vessel Olympic Chariot. The company sold the vessel in 1983 and purchased the vessel Olympic Galaxy in 1986.
Aristoteles Socrates Onassis Financiera Panama S.A. was formed in 1975. It was a type-A company (and sometimes type-B company) acting mainly as intermediate holding company. It was the stockholder of A.S.O. Naviera Panama S.A. and holding company of Alexander S. Onassis Foundation.
Aristotle S. Onassis S.A. was formed in 1954. It was a type-D company acting mainly as intermediary representative.
Arnheim S.A. was a type C company and was formed for rental purposes. The company was dissolved in 2001
Arrow Shipping Company Panama S.A. was formed in 1958. It was a type-C company mainly engaged in shipping and owner of the vessel Olympic Wind.
A.S. Onassis S.A. was formed in 1954. It was a type-C company mainly engaged in shipping and tourism. The company was the owner of the yacht Christina. After 1975 it was a type-B company mainly engaged in real estate, as the tenant of the Skorpios island. In 1990 the company seems to be at Atol Group.
Ashland Shipping Company S.A. was founded in 1956 and owned Onassis’s apartment (on the 5th floor) on Avenue Foch in Paris.
It is a type-C company engaged mainly in real estate. After 1975 the company passed to the Christina Onassis Group of companies owned by ATOL and managed by OMSA. After 1999 the ownership of Christina Onassis Group of Companies passed to her daughter Athina Onassis. The management of the companies was still held, separately from the Alexander S. Onassis Foundation Companies, until 1999.
ASO Limited S.A. was formed in 1954. It was a type-C company mainly engaged in tourism and refineries. ASO Limited S.A. was used to reinforce OMEGA's Industrial Investments liquidity.
A.S.O. Naviera Panama S.A. was formed in 1975. It was a type-A company acting mainly as intermediate holding company. It was the grandmother company of Alexander S. Onassis Business Foundation acting as holding company of Alexander S. Onassis Business Foundation. From 1990 it was a type-B company.
Astoria Transportation Company was formed in 1973. It was a type-G company acting as passive company.
Atol Compania Naviera S.A. was formed in 1975. It was a type-A holding company and the main company of Christina Onassis Group, that owned the majority of the shares of the other companies of the group.
Auburn Shipping Panama S.A. was formed in 1969. It was a type-C company mainly engaged in shipping and owner of the vessel Olympic Adventure. After 1975 the company passed to the Christina Onassis Group of companies owned by ATOL and managed by OMSA. After 1999 the ownership of Christina Onassis Group of Companies passed to her daughter Athina Onassis. The management of the companies was still held, separately from the Alexander S. Onassis Foundation Companies, until 1999. The company was dissolved in 2000
Austral Financiera Comercial S.A. was formed in 1952. It was a type-C company mainly engaged in shipping, acting as agent for whaling companies. The company purchased the yacht "Christina" (ex name Stormont) in 06/1954. After 1974 it was an aviation company, (dormant in 1998). In 1990, 50% of shares belonged to ASO and the other 50% belonged to Atol.