About the T20

The Think 20 (T20) is an official engagement group of the G20. It consists of a dynamic network of research institutes and experts from across the world who provide vital input into G20 processes.​

Through research and collaborative initiatives, the T20 offers intellectual support and drives progress on critical issues like climate change, economic inequality and sustainable development.

Since its establishment in 2012, the T20 has been widely regarded as the ‘ideas bank’ of the G20. Members support the G20 by:

  • Driving idea generation and intellectual input into the G20 agenda under each presidency. 
  • Providing evidence-based recommendations to the G20 in the form of policy briefings.
  • Facilitating interactions between the T20, the international think tank and research community and broader public on global governance challenges. 

South Africa’s T20 theme is: "Consolidate and Sustain"

South Africa’s presidency of the G20 in 2025 marks the culmination of a series of presidencies held by Global South countries: Indonesia in 2022, India in 2023 and Brazil in 2024.

As the final Global South country in this cycle of G20 presidencies, South Africa has the responsibility to consolidate the progress made on critical issues championed by the Global South and to ensure the sustainability of these efforts.

The theme of “Consolidate and Sustain” encapsulates our vision for the T20.

Consolidate

Sustain

T20 South Africa Co-leaders

The Institute for Global Dialogue (IGD), the South African Institute of International Affairs (SAIIA and the Institute for Pan-African Thought and Conversation (IPATC) lead the T20 in 2025.

South Africa is the fourth consecutive Global South country to hold the G20 Presidency, following Indonesia in 2022, India in 2023 and Brazil in 2024. The T20 co-leaders intend to build on the momentum created by their predecessors, and to champion the African continent’s developmental priorities during their tenure.

Philani Mthembu
Executive Director
Institute for Global Dialogue (IGD)

The Institute for Global Dialogue is an independent foreign policy think tank based in Tshwane (Pretoria), South Africa. It advances a balanced, relevant and policy-oriented analysis, debate and documentation of South Africa and Africa’s global politics and diplomacy. It strives to promote a broader understanding of the role of foreign policy and diplomacy in the pursuit of national and international development goals.

Elizabeth Sidiropoulos
Chief Executive
South African Institute of International Affairs (SAIIA)

The South African Institute of International Affairs (SAIIA) is an independent public policy think tank headquartered in Johannesburg. Established in 1934, the Institute’s goal is to advance a well-governed, peaceful, economically sustainable and globally engaged Africa. 

SAIIA generates high-quality, peer-reviewed research and analysis, ensuring that African perspectives and solutions shape continental and global debates. Its work elevates crucial African priorities in key international forums like the G20, BRICS and the WTO.

SAIIA also actively engages with governments, civil society, the business community, media and academia to explore impactful solutions and shape public debate. For almost a century, it has served as an important source of evidence-based analysis and policy recommendations, bridging local experiences with global debates to shape a better future for Africa and the world.

Siphamandla Zondi
Director
Institute for Pan-African Thought and Conversation (IPATC)

The Institute for Pan-African Thought and Conversation was established at the University of Johannesburg (UJ) in 2016 as one of nine flagship centres of excellence to conduct research.

It provides a forum for scholars, practitioners, and civil society actors across Africa and its diaspora to dialogue and contribute to the rigorous production and dissemination of Pan-African knowledge and culture.

The Institute seeks to promote original and innovative Pan-African ideas and critical dialogue in pursuit of global excellence in research and teaching, and to contribute actively to building an international profile for UJ on Pan-African issues.