This company was established in 1948. It is a type-C company, mainly engaged in shipping.
Pennine Navigation Company S.A. was established in 1983. It was a type-C company mainly engaged in shipping as the owner of the vessel "Olympic Merit".
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.
Peerless International S.A. was formed in 1969. It was a type-B company acting as an intermediate holding company.
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
Panamerican Marine Corporation was established 1951. It was a type-D (aunt) company mainly engaged in chartering as intermediary representative.
Palmas Transportation Company was established in 1953. It was a type-C company, mainly engaged in shipping and owner of the vessels "Olympic Torch" and "Tina Onassis".
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.
Osborne Panama S.A. was established in 1965. It was a type-C company mainly engaged in shipping.