Carlow Maritime Panama S.A. was formed in 1968. It was a type-C company mainly engaged in shipping and owner of the vessel Olympic Banner.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
Caribbean Atlantic Cargo Inc. was formed in 1956. It was a type-C company mainly engaged in shipping and owner of the vessel Ondine.
Camrose Panama S.A. was established in 1968. It was a type-C company mainly engaged in shipping and owner of the vessel "Olympic Avenger". After 1975 the main stockholder of the company was A.S.O. Naviera Panama S.A.
Calera Panama S.A. was established in 1968. It was a type-C company mainly engaged in shipping and owner of the vessel "Olympic Bond".
Burnside Holding Corporation was formed in 1986. It was a type-B company mainly acting as intermediate holding company. It belonged to Pinelands Marine and after some years to Holky Investors Inc. 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.
Burlington Shipping Limited was formed after 1975. It was a type-C company mainly engaged in real estate. In 1990 the company belonged to ASO Group
Bristol Navigation S.A. was established in 1956. It was a type-C company mainly engaged in tourism. 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. After 1975 Cramer Panama S.A. was the sole shareholder of the company. The company was dissolved in 1983.