EA Organisations budget size

I recently noticed that my expectations of what various organisations are spending are way off, so I tried to gather some data.

This excludes money moved through the organisation but re-granted outside of it. For organisations that did not have a more recent budget, I graphed their historical trends between publicly available budgets, and assumed that fundraising targets would be hit at the organisation’s mid-level.

Happy to correct any of these if anyone can link to more updated data!

OrganisationEstimated 2024 budget
Centre for Effective Altruism$30 million
GiveWell$28 million
80,000 Hours$15.5 million (excludes marketing)
Rethink Priorities$11 million
Founders Pledge$7 million
Lightcone $3.7 million
Giving What We Can$2.35 million
Charity Entrepreneurship $2 million
Animal charity evaluators $1.5 million
Manifold markets$1 million
Happier lives institute$0.55 million
One for the world$0.6 million
Probably good$0.5 million



Data/​sources—all numbers normed for 2024

  • Centre for effective altruism $30 million - $28m in 2022, events ~$10m, EA forum ~$2m

  • GiveWell $28 million—extrapolated from historical planned budgets e.g. $25.4 million in 2023

  • 80,000 hours $15.5 million (the number they published is excluding marketing, and I could not find numbers for the marketing budget)

  • Rethink priorities $11 million—see comments (initial estimate was extrapolated from $7.5 million in 2022 + the medium growth estimate)

  • Founders pledge $7 million—extrapolated from the trends of $4m in 2020 to 2021 $5.6m

  • Metaculus $2.75 million—extrapolated that this $5m grant is over 2 years

  • Lightcone/​Lesswrong $3.7 million

  • Giving what we can $2 million

  • Charity Entrepreneurship $2 million—extrapolated from $1.62 million in 2023

  • Animal charity evaluators $1.5 million (not including regranting)

  • Manifold markets $1 million

  • Happier lives institute $0.55 million—currently operating on the lean budget, see their most recent fundraising post

  • One For The World $0.6 million—extrapolated from $0.5m in 2022

  • Probably good - $0.5 million—extrapolated from $0.3m in 2022