United Services Corporation was formed in 1975. It was a type-C company, engaged in real estate. The company was the tenant of the Geneva office and
United Marine Insurance Company Limited was formed in 1992. It was a type-E company acting as shipping agency.
United 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 was the holding company of Athina Group of companies and owned several other companies such as Rhone Investments Limited (dividend from Corvallis), Evanston Panama S.A., Moreno Shipping Company and State Mercantile Company 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.
Union Shipping Co. Ltd. was formed in 1965. It was a type-C company mainly engaged in shipping.
Union Cape Development S.A. was formed in 1983. It was a type-E company mainly acting as shipping agency.
Ultramar International Cargo Inc. was formed in 1960. It was a type-C company mainly engaged in shipping.
Ultramar Cargo Inc. was formed in 1957. It was a type-C company mainly engaged in shipping.
No bearing with the groups, on 5.6.74 capital= 20.000$. Westchester Corporation Limited acts as a financing corporation to Trenton, which is the owner of Mrs. M. Callas' flat in Paris, 36 Georges Mandel Avenue (11.07.1977).
Transworld Trading Company S.A. was formed in 1956. It was a type-C company. It was an aviation company, (dormant). In 1976 undergoing change of ownership to Atol and A.S.O. equal holdings. In 1990 50% shares of the company belongs to A.S.O. and the other 50% belongs to Atol Group. In 1998 its parent company was Denton Marine Panama S.A.
Transpacific Freighters Company S.A. was formed in 1983. It was a type-C company mainly engaged in shipping as the owner of the vessel Olympic Miracle.
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.
Transcontinental Trading Company S.A. was formed in 1957. It was a type-C company mainly engaged in shipping and tourism. It was the owner of the vessel Olympic Dale. 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.
The Transatlantica Financiera Industrial S.A. was formed in 1949. It was a type-D company (aunt). The company purchased 12 corvettes (Olympic Chaser, Olympic Fighter, Olympic Arrow, Olympic Conqueror, Olympic Champion, Olympic Victor, Olympic Lightning, Olympic Runner, Olympic Explorer, Olympic Cruiser, Olympic Leader, Olympic Promoter) so to convert them to whaling vessels. In 1950 the company sold the corvettes to the Panamanian company Balleneros Limited S.A. (a type-C company) and the tanker Olympic Challenger to the Panamanian company Olympic Whaling Company S.A. (a type-C company). In 1954 Transatlantica Financiera Industrial S.A. was accused, among other companies of Onassis, by the United States in the prosecution of the United States against Onassis.
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.
Thurston Panama S.A. was formed in 1966. It was a type-G company acting as passive company.
The Posterus Company S.A. was formed in 1984. It was an intermediate holding company and was dissolved in 2001.
TCR Investment Corporation was formed in 1984. It was a type-F company. Company's name changed in 1984.
Tacapan Marine Panama S.A. was formed in 1973. It was a type-C company mainly engaged in shipping. The company was dissolved in 1993.