American Bureau of Shipping (USA): 

www.eagle.org

Polish Register (POLAND):

https://www.prs.pl/index.php?newlang=eng

Bureau Veritas (FRANCE):

www.bureauveritas.com/wps/wcm/connect/bv_com/Group

Registro Italiano Navale (ITALY):

http://www.rina.org/en/index.aspx

China Classification Society (CHINA):

http://www.ccs.org.cn/en/index.htm

Russian Maritime Register of Shipping:

http://www.rs-head.spb.ru/en/index.php

DNV GL Maritime (NORWAY):

http://www.dnv.com

Turk Loyd Foundation:                                                                                  http://www.turkloydu.org/turkloydu/home.aspx?lang=en-GB 

Hellenic Register of Shipping (HELLAS):

www.hrs.gr

Turk Loyd Foundation:

http://www.turkloydu.org/turkloydu/home.aspx?lang=en-GB 

International Register of Shipping:

http://www.intlreg.org

BIMCO:

http://www.bimco.org

International Shipping Bureau:

http://www.isbship.com/php/contactDetails.php?con_id=5&linkid=7&contact_id=11

Lloyd’s Register (GREAT BRITAIN):

www.lr.org

Korean Register of Shipping (KOREAN):

http://www.krs.co.kr/eng/keyservice/TypeApproval/k_TypeApproval_quick.aspx

Piraeus Port authority:

www.olp.gr/

INTERCARGO:

www.intercargo.org

INTERTANKO:

 www.intertanko.com

Marshall Islands Ship and Corporate Registry:

http://www.register-iri.com/

Indian Ocean MOU:

 www.iomou.org

NK – Nippon Kaiji Kyokai (JAPAN):

www.classnk.or.jp/hp/en/index.asp

Paris MOU:

www.parismou.org

Panama Canal Registry:

http://www.segumar.com/

US Coast Guard:

http://homeport.uscg.mil/mycg/portal/ep/browse.do?channelId=-18371