Superyacht Guide Recognition
Superyacht Guide service labels identify the organisation's main publicly listed yacht, registry, compliance or maritime technical activities.
Last reviewed: May 11, 2026
Company and service badges are editorial indicators. They are not official certification, legal approval, technical approval, safety certification or a paid rating.
Tokyo-based classification society providing class, survey, certification and maritime technical services.
ClassNK, also known as Nippon Kaiji Kyokai, is a Japanese classification society providing maritime classification, survey and certification services. Its official directory lists Tokyo office and department contact details.
The profile is relevant to yacht owners, shipyards, managers and technical teams where classification, survey, certification or maritime technical services are required.
The profile has been created from official ClassNK public information. Superyacht Guide lists ClassNK under Classification Society, Yacht Survey and Yacht Compliance.
| Type | Service Provider |
|---|---|
| Primary country | Japan |
| Primary city | Tokyo |
| Website | https://www.classnk.or.jp/ |
| boh@classnk.or.jp | |
| Enquiries | boh@classnk.or.jp |
| Phone | +81 3 5226 2040 |
| Business model | Service provider |
|---|
| Service area | Global |
|---|---|
| Operating regions | Japan, Asia-Pacific, Europe, Americas, Global |
| Client focus | Shipowners, yacht owners, managers, shipyards, survey teams, designers and maritime operators. |
| Core services | Classification, survey, certification, ship management systems and maritime technical services. |
| Products / services | Classification surveys, certification, ISM/ISPS/MLC support, maritime education, cyber-security and technical approvals. |
| Specialisms | Japanese classification society with global maritime survey and certification services. |
| Verification status | Official source checked |
|---|---|
| Last verified | May 11, 2026 |
| Claim status | Unclaimed |
| Editorial note | Company and service badges are editorial directory labels. They are not official certification, legal approval, technical approval, safety certification or a paid rating. |
| Sources | https://www.classnk.or.jp/ |
Superyacht Guide company verification is an editorial data check based on available sources. It is not legal, financial, technical, safety, class, regulatory or professional certification.
Office ยท Headquarters
4-7 Kioi-cho, Chiyoda-ku
Tokyo
102-8567
Japan
Phone: +81 3 5226 2040
Email: boh@classnk.or.jp
Website: https://www.classnk.or.jp/
Services at this location:
Classification, survey, certification and maritime technical services.
Location created from official website or reliable public industry source during controlled Superyacht Guide company import.