The Ratings
See our think tank transparency ratings.
From 2019 - 2024 the Who Funds You? project systematically assessed as many UK think tanks as we possibly could. Since then, we have taken a risk-based approach to auditing think tanks, due to a lack of resources.
The ratings below were last updated in October 2026.
You can see the current ratings of every think tank in the graphic below.
We take a "risk based" approach and focus on the most influential think tanks and the ones that have the worst records on transparency.
You can help
As we publish the methodology - and anyone can use it - we'd welcome your help.
If you think any of our ratings are out of date or incorrect, please get in touch to let us know. You can even use this form to conduct an audit yourself. We'll update our ratings once we've double checked everything.
Stay updated
When a think tank changes rating, we'll definitely update our supporters via our newsletter. Tap the button below to stay updated. It's free!