Marathon Oil Company :
http://www.marathonoil.com/Global_Operations/Exploration_and_Production/Norway/

Ithaca Energy :
http://www.ithacaenergy.com

British Standards Institute :
http://www.bsi-global.com/

International Marine Contractors Association :
http://www.imca-int.com/divisions/diving/
http://www.imca-int.com/documents/core/sel/safetyflash/2008/

Berr :
https://www.og.berr.gov.uk

Scottish Fishermans Federation :
http://www.sff.co.uk

OPITO :
http://www.opito.com

Falck Nutec :
http://www.nutecuk.com

American National Standards Institute (ANSI) :
http://www.ansi.org

API :
http://www.api.org

Project Management Institute :
http://www.pmi.org

Institute of Marine Engineers :
http://www.imarest.org

Institute of Mechanical Engineers :
http://www.imeche.org

Institution of Civil Engineers :
http://www.ice.org.uk

FSB
http://www.fsb.org.uk