ClassNK type approval certificates
Search 11,603 product, type and design approval records issued by ClassNK — Nippon Kaiji Kyokai. Filter by company, country or approval scheme, open each record and follow the source link to confirm the certificate with ClassNK.
Search scope
Search groups on this page: Type Approval, MED / MER / EU Mutual Recognition, Design Approval, RCD, Welding Consumables, Manufacturer Workshop Approvals, and Service Suppliers. Original approval names and certificate scope remain visible in each record.
Product search groups: Type Approval, MED / MER / EU Mutual Recognition, Design Approval, RCD, and Welding Consumables. Search grouping does not make different approval schemes equivalent. Original approval names and certificate scope remain visible in each record.
Please note that search results on this page are available specifically for Service Suppliers certificates.
Please note that search results on this page are available specifically for Manufacturer Workshop Approvals.
Results on this site are for information only. Verify certificate validity on the issuing society’s website using the source link when available. A source portal may require a further search.
Last updated: 16.09.2026
Certificate details
ClassNK at a glance
Approval schemes
- Type approval10,188
- Welding consumables approval1,413
Top product categories
- Coatings and paints2,804
- Pipes, valves and hoses1,681
- Control, automation and monitoring systems1,524
- Welding consumables1,433
- Life-saving appliances949
- Cables and electrical equipment940
- Steel, castings and forgings880
- Fire protection and fire doors456
Top countries / regions
- Japan4,963
- China2,642
- South Korea1,737
- Germany370
- Denmark222
- United Kingdom213
- Norway168
- Sweden137
Figures from the Certificate Finder index, last updated 16.09.2026.
How to verify a ClassNK certificate
- Search by company name, product or certificate number and filter the results to ClassNK.
- Open the record to review the certificate number, scope, approval type and indexed dates.
- Follow the source link to ClassNK — Nippon Kaiji Kyokai and confirm the current validity and scope before relying on the certificate.
Certificate Finder is an independent index and is not affiliated with or endorsed by ClassNK — Nippon Kaiji Kyokai.
More ClassNK records
Type approvals by classification society
DNVAmerican Bureau of Shipping (ABS)Lloyd’s Register (LR)Bureau Veritas (BV)RINAKorean Register (KR)China Classification Society (CCS)Indian Register of Shipping (IRClass)Polish Register of Shipping (PRS)Croatian Register of Shipping (CRS)Türk Loydu (TL)