To further increase its credibility truly suited of a maritime training center, ISNTC has gained certifications from the following:

• Germanischer Lloyd
• Philippine Regulation Commission
• Maritime Training Council (MTC)
• Association of Technical Schools of Manila, Inc.
• Technical Education Skills and Development Authority (TESDA)
• Department of Merchant Shipping (Republic of Cyprus)
• Republic of Marshall Island
• Liberian Registry (Republic of Liberia)