Big Ideas and Big Money: An In-depth Analysis of the Funding Sources of American Think Tanks
Based on five years of data from top domestic think tanks, this reveals the funding landscape and transparency crisis among foreign governments, the U.S. government, and Pentagon contractors.
Detail
Published
23/12/2025
Key Chapter Title List
- Introduction
- What the Think Tank Funding Tracker Database Includes (and Excludes)
- Think Tank Transparency Scoring System
- Fully Transparent Think Tanks
- Partially Transparent Think Tanks
- Dark Money Think Tanks
- Data Insights: Quantitative Analysis of Think Tank Funding
- Foreign Government Funding of Think Tanks
- Pentagon Contractor Funding of Think Tanks
- U.S. Government Funding of Think Tanks
- Why Think Tank Funding Matters
- Policy Recommendations for Rebuilding Trust in the Think Tank Industry
Document Overview
Think tanks play a pivotal role in shaping American public opinion and public policy. Their scholars frequently act as professional authorities influencing media narratives, congressional hearings, and legislative drafting. However, as think tanks increasingly rely on funding from special interest groups and foreign governments, the potential conflict between funding sources and research independence has raised widespread concern. Public trust in think tanks continues to decline, with only 48% of surveyed individuals believing think tank experts are valuable to society.
This report leverages the world's first publicly available U.S. Think Tank Funding Tracker database (www.thinktankfundingtracker.org) to conduct a systematic analysis of the funding sources for the top 50 U.S. think tanks over the past five years. It focuses on three core funder categories: foreign governments, the U.S. government, and Pentagon contractors. The database employs a transparency scoring system built on five binary indicators to quantitatively assess the level of financial disclosure by each think tank, addressing a long-standing information gap in this field.
The data used in this research primarily comes from self-disclosed information such as think tank annual reports and donor lists. The study focuses on the 50 most influential think tanks (selected based on academic influence rankings) and defines Pentagon contractors as the top 100 defense firms by revenue in 2023, plus nine companies involved in classified contracts or making substantial donations. The report's statistical analysis of funding data is based on the lower bounds of disclosed ranges, ensuring conservative and reliable estimates.
Key findings reveal that among the top 50 think tanks, only 18% (9) are fully transparent, 46% (23) are partially transparent, and 36% (18) are dark money think tanks. Over the past five years, foreign governments and state-owned entities donated over $110 million, with the United Arab Emirates, the United Kingdom, and Qatar being the largest donor countries. The top 100 defense firms donated over $34.7 million, with Northrop Grumman, Lockheed Martin, and others being major contributors. Direct U.S. government funding amounted to at least $1.49 billion, of which over $1.4 billion went to the RAND Corporation. This financial dependency triggers issues such as self-censorship and perspective filtering. Some think tanks engage in paid research, and individual researchers holding simultaneous positions at both a think tank and its funder constitute clear conflicts of interest.
Finally, the report proposes a series of recommendations for Congress, the Department of Justice, think tanks, and the media. These include legislating mandatory disclosure of large donations, clarifying Foreign Agents Registration Act (FARA) guidance, terminating paid research models, and establishing media conflict-of-interest disclosure standards. The aim is to rebuild public trust in the think tank industry by enhancing transparency and safeguarding its core value as an independent policy research institution.