Home Classification Societies Top Classification Societies in 2025: Leaders by Gross Tonnage and Number of Ships

Top Classification Societies in 2025: Leaders by Gross Tonnage and Number of Ships

by MaritimeHub Team
6 minutes read

Classification societies are independent organizations that establish and maintain technical standards for the construction and operation of ships and offshore structures. They play a critical role in ensuring maritime safety, environmental protection, and regulatory compliance.


📊 Top Classification Societies by Gross Tonnage (GT)

RankClassification SocietyGross Tonnage (Million GT)
1ClassNK270
2DNV260
3ABS255
4Lloyd’s Register236
5China Classification Society140
6Bureau Veritas135
7Korean Register70
8RINA65
9Indian Register13
10PRS2.3
11CRS1.6
12Turkish Lloyd0.4

⚓ Top Classification Societies by Number of Ships

RankClassification SocietyNumber of Ships
1ClassNK9,124
2DNV~8,500
3ABS~7,800
4Lloyd’s Register~7,000
5CCS~5,500
6Bureau Veritas~5,000
7Korean Register~3,000
8RINA~2,800
9Indian Register~1,200
10PRS~500
11CRS~400
12Turkish Lloyd~300

🌐 Spotlight on the Top Classification Societies

1. ClassNK (Japan)

ClassNK leads globally, with over 270 million gross tons and more than 9,000 ships. Known for its rigorous standards and innovation, it supports maritime safety, digitalization, and environmental sustainability.

2. DNV (Norway)

DNV is a powerhouse in maritime and offshore classification. With 260 million GT, it is a pioneer in green shipping, cybersecurity, and digital transformation.

3. ABS (USA)

ABS supports over 255 million GT and is a leader in offshore energy and smart shipping. It emphasizes safety, innovation, and regulatory compliance.

4. Lloyd’s Register (UK)

Founded in 1760, LR is a historic leader with a 236 million gross tonnage. It champions maritime decarbonization and digital classification.

5. China Classification Society (CCS)

CCS is China’s national society, managing 140 million GT. It’s expanding globally, focusing on green shipping and innovation.

6. Bureau Veritas (France)

BV handles 135 million GT and offers services across maritime, energy, and industry. It’s known for digital tools and sustainability.

7. Korean Register (KR)

KR supports 70 million GT and is deeply integrated with Korea’s shipbuilding industry. It’s a leader in smart and eco-friendly shipping.

8. RINA (Italy)

RINA manages 65 million GT and is active in maritime innovation and digital transformation, with a strong European presence.

9. Indian Register of Shipping (IR)

IR oversees 13 million gross tons (GT) and supports India’s maritime infrastructure. It’s expanding globally with a focus on safety and compliance.

10. Polish Register of Shipping (PRS)

PRS manages 2.3 million GT and serves the Baltic region. It emphasizes safety, environmental protection, and technical development.

11. Croatian Register of Shipping (CRS)

CRS supports 1.6 million GT and is known for its regional expertise and maritime safety services in the Adriatic.

12. Turkish Lloyd (TL)

TL manages 0.4 million GT and supports Turkey’s maritime growth, focusing on international compliance and consultancy.


🔍 Why Classification Societies Matter

  • Safety Assurance: They ensure ships meet international safety standards.
  • Environmental Compliance: They help reduce emissions and promote the use of green technologies.
  • Innovation Drivers: Many leaders are driving digitalization, AI, and smart shipping.

📈 Conclusion

The top classification societies in 2025 are shaping the future of global shipping. Whether measured by gross tonnage or fleet size, these organizations are essential to maritime safety, innovation, and sustainability.

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