• American Institute of Marine Underwriters http://www.aimu.org 
• American Petroleum Institute http://www.api.org
• American Society of Naval Engineers http://www.navalengineers.org
• Baltic and International Maritime Council, The (BIMCO) http://www.bimco.dk 
• Baltic Exchange, The http://www.balticexchange.com  
• Hellenic Marine Environment Protection Association http://www.helmepa.gr 
• Institute of Marine Engineering Science & Technology http://www.imarest.org 
• Intercargo http://www.intercargo.org  
• International Association of Classification Societies http://www.iacs.org.uk  
• International Maritime Organization http://www.imo.org  
• International Organization for Standardization http://www.iso.ch  
• International Underwriting Association of London http://www.iua.co.uk  
• Intertanko http://www.intertanko.com  
• Marine Technology Society http://www.mtsociety.org  
• National Institute of Standards and Technology http://www.nist.gov  
• Oil Companies International Marine Forum http://www.ocimf.com  
• Royal Institute of Naval Architects http://www.rina.org.uk  
• Society of Naval Architects and Marine Engineers (SNAME) http://www.sname.org  
• Society for Petroleum Engineers http://www.spe.org
• Australian Maritime Safety Authority http://www.amsa.gov.au  
• Equasis http://www.equasis.org  
• Maritime and Coast Guard Agency http://www.mcga.gov.uk  
• Paris MOU http://www.parismou.org  
• Transport Canada Marine Safety http://www.tc.gc.ca/en/menu.htm  
• US Coast Guard http://www.uscg.mil
• United States Coast Guard http://cgmix.uscg.mil  
• Marine Equipment Directive (marED) http://www.mared.org
• Swedish Club http://www.swedishclub.com  
• The London P&I Club http://www.lsso.com  
• U.K Club http://www.ukpandi.com