This article talks more about that:
Also, from this write up:
- The Laura and John Arnold Foundation is the biggest funder of meta-research we’re currently aware of which specifically has a focus area on research integrity[73]. From 2011-2017 the Arnold foundation has given about $81 million to meta-research causes like the Meta-Research Innovation Center at Stanford (METRICS) [74], the Centre for Open Science[75], and several other initiatives[76].
Note, the Research Integrity area on the Arnold Ventures site is no longer active, but it looks like this is now just part of their Research area.