Inwood Panama S.A. was formed in 1966. It was a type-C company mainly engaged in shipping and owner of the vessel Olympic Power. 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
Jedway Shipping Company Panama S.A. was formed in 1967. It was a type-B company acting as intermediate holding company.
Keswick Marine Panama S.A. was formed in 1967. It was a type-D company acting as intermediary representative.
Leeward Panama S.A. was formed in 1970. It was a type-C company mainly engaged in shipping.
The company was created in 1948. It is a type-C company, mainly engaged in shipping.
Nevis Panama S.A. was formed in 1970. It was a type-G company acting as passive company.
Olympic Finance Inc. was formed in 1993.
Olympic Investment Inc. was formed in 1993. It was a type-F company considered as dormant.
Olympic Whaling Company S.A. was formed in 1950. It was a type-C company. It was also the owner of the tanker Olympic Challenger and along with Balleneros Limited S.A. the owner of Onassis whaling fleet.
Pacific International Investments Panama S.A. was formed in 1976. It was a type-D company mainly acting as intermediate agency in the field of cash management. It belonged to Henley Finance Corporation. 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. The company was dissolved in 2000.
Pembroke Investment Panama S.A. was formed in 1979. It was a type-D company acting as intermediate agency and mainly engaged in cash management. It belonged to Henley Finance Corporation. 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. The company was dissolved in 2001.
Portland Maritime Panama S.A. was formed in 1976. It was a type-C company mainly engaged in shipping and acting as vessel owning company. It belonged to Dorset Shipping and Trading Corporation (1977) and after to Windsor Trading Corporation (1998). It owned the vessels Olympic Sea, (ex Texaco Europe), which was sold for demolition in 1979, and Olympic Phoenix, which was sold in 1992. 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. The company was dissolved in 2005.
Rawson Panama S.A. was formed in 1969. It was a type-C company mainly engaged in real estate
Rhone Investments Limited was formed in 1976. It was a type-B company mainly acting as intermediate holding company. It belonged to United Investment Panama S.A.. 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.
Rio Negro S.A. was formed in 1951 and dissolved in 1984
Sandiland Marine Panama S.A. was formed in 1973. It was a type-B (or type-C) company acting as intermediate holding company.
Santa Rosa Shipping Company Panama S.A. was formed in 1963. It was a type-C company mainly engaged in shipping.
Sociedad Armadora Aristidis Panama S.A. along with A.S. Onassis Panama S.A., were the primary mother companies belonging to Aristotelis. These mother companies in turn owned the daughter company Ashland Shipping Panama SA, which was founded in 1956 and owned Onassis’s apartment on Avenue Foch in Paris. The daughter companies Anonimos Ktimatiki kai Emboriki Etaireia Agamemnon and Anonimos Ktimatiki and Emboriki Etaireia Mykinai owned the island complex of Skorpios and his homes in Glyfada. The daughter company Rawson Panama SA owned Onassis’s villa in Lagonissi, while the daughter company Jancourt Marine Panama SA owned his yacht the Christina, etc. Among these companies one can even find personal purchases of clothes by Onassis’s wives and his daughter Christina from the top European fashion houses, such as Valentino and Dior. This company passed to the Christina Onassis Group of companies owned by ATOL.
TCR Investment Corporation was formed in 1984. It was a type-F company. Company's name changed in 1984.
Toledo Shipping Company was formed in 1979. It was a type-C company mainly engaged in shipping, as the owner of the vessel Saint Mary. The company was sold in 1982.
Transmarine Panama S.A. was formed in 1957. It was a type-C company mainly engaged in shipping and tourism. It was also the owner of the vessel Olympic Thunder. It was one of the companies that between 1951-1959 purchased shares of the Société des Bains de Mer and eventually took control of the company that owned Monaco’s most important businesses: the Casino, the Opera House and the famous Hôtel de Paris.
Veragua Panama S.A. was formed in 1970. It was a type-C (and type-B) company mainly engaged in shipbuilding as a shareholder of Harland & Wolf Shipyards. 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.