The 29th St. Petersburg International Economic Forum (SPIEF) will occur from June 3 to 6, 2026, in St. Petersburg, Russia. Recognized as the country’s principal economic conference since its inception in 1997, SPIEF convenes heads of state, finance ministers, and executives from both Russian and international firms to discuss pressing economic issues. The forum typically attracts over 10,000 participants from more than 100 countries, with a record of 24,200 attendees in 2025. Since 2010, SPIEF has facilitated investment agreements totaling over $775 billion, with the largest single-year agreements reaching 9.6 trillion rubles (around $320 billion) in 2013. Notable past attendees include leaders like Xi Jinping and Emmanuel Macron. For the 2026 forum, Saudi Arabia will be the guest country, and the event will be hosted at the Expoforum venue for the tenth consecutive time. The SPIEF's organizational structure includes the Roscongress Foundation, which manages the event, and it is supported by numerous corporate sponsors, including VEB.RF and Rosatom.