Bjørn Tore Larsen formed the ship-management group in 1989 with Jan Morten Eskilt, Jan Ove Dalsøren and Erling Bjørn Wik. It acquired CH Sørensen Management in 2000, Sea Partner International in 2001 and shuttle-tanker and offshore-rig operator Rasmussen Maritime Services in 2003. Recorded shareholders included C.H. Sörensen & Sönner with 26% and P.D. Gram’s owners with 20%. OSM Schiffahrt was formed jointly with Nordcapital in January 2007 and was listed under ER Schiffahrts from April 2008.
Norway, Arendal.
Keep the explicit scope label independent; no alias or company identity is inferred.