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Longterm Wiki has not been actively maintained since May 2026. Some data is still updated occasionally, but please don't rely on this site being current or accurate.
Longterm Wiki

Coefficient Giving

Funder
Founded Jun 2017 (9 years old)HQ: San Franciscocoefficientgiving.org ↗

Also known as: Open Philanthropy, OP

Divisions & Teams

16
NameTypeLeadTotal SpendingGrantsStatusSince

$120M committed over 3 years. Led by Matt Clancy. Economic growth, scientific progress, US-focused.

FundMatt Clancy$36M45ActiveMar 2025Verified

40+ grants totaling ~$20M. Led by Santosh Harish. Focus on South Asia and high-pollution areas.

FundSantosh Harish$21M33Active2022Verified

140+ grants totaling ~$260M. Led by Andrew Snyder-Beattie. Work began ~2015, five years before COVID-19.

FundAndrew Snyder Beattie$283M152Active2015Verified

Focused on reducing incarceration; wound down in 2022. ~$200M total grants.

Fund$209M395Dissolved2014Failed source check

Led by Melanie Basnak and Sam Donald. Support for CEA, 80,000 Hours, EA Funds, and community infrastructure.

FundMelanie Basnak, Sam Donald$28M39ActiveVerified

Led by Lewis Bollard. Corporate cage-free campaigns, alt-protein research, advocacy.

FundLewis Bollard$420M496Active2016Verified

30+ grants totaling ~$50M. Led by Benjamin Tereick. Forecasting infrastructure and research.

FundBenjamin TereickActive2018Failed source check

50+ grants totaling ~$30M. Led by Norma Altshuler. Encouraging generous and cost-effective international aid.

FundNorma Altshuler$29M57Active2018Verified

Covers AI safety, biosecurity, and other GCR-related grantmaking. 250+ grants across cause areas.

Program$535M307ActiveVerified

250+ grants across GCR cause areas and EA community capacity building

FundEli RoseActive2015Verified

$40M+ committed over 3 years. Led by Justin Sandefur. Policy research for economic growth in low/middle-income countries.

FundJustin Sandefur$5.8M6ActiveOct 2024Verified

360+ grants; largest fund. Primarily GiveWell-recommended charities; $175M committed for 2026 via GiveWell

FundJames SnowdenActive2014Verified

Covers global health, farm animal welfare, and scientific research. 360+ grants; largest program area.

Program$1.5B529ActiveVerified

$100-125M raised; 20+ grants. Multi-donor pooled fund with Gates Foundation, UNICEF, others.

FundActive2024Verified

480+ grants totaling ~$500M. Sub-areas: Technical Safety (Favaloro, O'Keeffe-O'Donovan), AI Governance (Muehlhauser), Short Timelines (Zabel). ~$63.6M in 2024 (~60% of all external AI safety funding).

FundClaire Zabel, Luke Muehlhauser, Peter Favaloro, Rossa O'Keeffe O'Donovan$543M333Active2017Verified

330+ grants + 30+ social investments ($90M+). Led by Jacob Trefethen. Treatments, vaccines, diagnostics.

FundJacob Trefethen$335M203Active2017Verified