Portrait of Sarath Ratanavadi

Rank #168

Sarath Ratanavadi

Net worth $17.3B

Energy · Thailand

Born
Jul 12, 1965
Age
60
Source
Energy
Residence
Bangkok
Citizenship
Thailand
Marital status
Married
Children
0
Education
Bachelor of Science in Engineering, Chulalongkorn University; Master of Science in Engineering, University of Southern California

Net worth over time

Biography

  • Sarath Ratanavadi is CEO of Gulf Development, one of Thailand's largest conglomerates with interests in telecommunications and digital infrastructure.
  • Gulf Development was established in 2025 following a merger between power producer Gulf Energy Development and telecom giant InTouch Holdings, the biggest shareholder of Advanced Info Service (AIS).
  • In 2024, Gulf Energy's joint venture with Binance launched a crypto exchange in Thailand.
  • Gulf bought a stake in Kasikornbank in May 2025 and continued to raise its shares to become the second largest shareholder of Thailand's third largest bank by assets.
  • Gulf's joint venture with Singtel and AIS to set up data centers in Thailand is expected to start operations in 2025.
  • He went to college in Bangkok, then moved to the U.S. for a masters degree in engineering.
  • Sarath is the former managing director of Thailand Golf Championship.
  • Gulf Energy has a 70:30 joint venture with state-owned oil and gas firm PTT to build a $1.3 billion LNG terminal and port on Thailand's east coast.

Financial assets

Exchange Ticker Company Shares Price Currency