Siem Offshore is an international offshore and subsea shipping company registered on the Cayman Islands with its main offices in Kristiansand, Norway.

The Company’s fleet includes 50 vessels, of which 15 are under construction. The fleet includes platform supply vessels – PSVs, anchor handling tug and supply vessels – AHTS, multipurpose field and ROV support vessels – MRSVs, offshore subsea construction vessels – OSCVs, well intervention vessels – WIVs, scientific core drilling vessels – SCDVs and crew transport vessels – CTVs.

Furthermore, the subsidiary Siem Consub (Siem Offshore do Brasil) operates additional vessels in Brazil.

Siem Industries (33.7%) and Ace Crown International (19.4%) are the largest owners.

Trade as:              (OSE: SIOFF)

Industry:              Shipping

Founded:            2005

Headquarters:   Cayman Islands

Services:              Offshore Vessels

Website:              www.siemoffshore.com