ISLAMABAD  - Sustainable Development Policy Institute (SDPI) has entered 100 top think tanks’ global club with its ranking on 15th in the index in Asia and the Pacific.

It is declared 38th as World’s top trans-disciplinary research think tank and on the similar ranking in Best Quality Assurance and Integrity Policies and Procedures category, said an SDPI press release.

According to the 2015 Global Go To Think Tank Index, the ranking is done among 6486 Think Tank (TT) globally nominated by eminent experts, policy makers, and public thought leaders, said a news release issued here on Monday.

TT and civil society programme of University of Pennsylvania on an annual basis has been doing the ranking since 2008. The report was launched in Washington, DC, (World Bank and Wilson Center), Philadelphia (University of Pennsylvania) and in New York (United Nations).

The index ranks Brookings Institution (US) as world’s TOP TT. Among non US Think Tanks Chatham House is World’s TOP TT while SDPI has been ranked 38th as World’s Top Trans-disciplinary Research TT.

Woodrow Wilson International Center for Scholars (US); RAND Corporation (US); Brookings Institution (US); Chatham House (UK) and

Council on Foreign Relations (CFR) (US) are the top five TTs in this category.

SDPI has been placed 65th as World’s Top Environment Policy TT. World Resources Institute (US); Stockholm Environment Institute (Sweden); Worldwatch Institute (US);

Brookings Institution (US); and Center for Climate and Energy Solutions (US) are the top five TTs in this category.