| Center on Long-Term Risk |
Advisor (–2015-11-01); Board member and co-founder (2015-11-01–2016-01-01); Executive director (2016-01-01–2017-06-01); Board member (2016-03-01–2017-06-01) |
advisor (2020-07-01–); Co-Executive Director (2013-11-01–2020-05-13) |
| Effective Altruism Foundation |
President (–2016-12-20) |
Director of Communications (2016-01-05–2018-09-03); Executive Director (2018-09-03–2020-03-06); Head of operations (–2016-01-05) |
| Raising for Effective Giving |
Chairman (2014-07-01–) |
Avisor (2018-10-01–2023-07-01); Director of Operations (2015-10-01–2016-04-01); Operations (2015-03-01–2015-09-01) |
| Sentience Politics |
Co-Founder (2014-01-01–) |
Head of Campaigns (2017-04-01–2017-04-01); Board member (2017-06-02–2025-04-01) |