1.

Nippon Kaiji Kyokai (NKK)

https://nkships.classnk.or.jp/

https://sms.classnk.or.jp/ismhp

2.

Germanischer Lloyd (GL)

3.

Korean Register Of Shipping

4.

Lloyds Register of Shipping (LRs)

5.

American Bureau of Shipping (ABS)

6.

Det Norske Veritas (DNV)

7.

Bureau Veritas (BV)

8.

RINA