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Full-time staff
Holden Karnofsky | Co-Founder and Co-Executive Director. Holden graduated from Harvard University in 2003 with a degree in Social Studies, and spent the next several years in the hedge fund industry. He co-founded GiveWell in mid-2007.
Elie Hassenfeld | Co-Founder and Co-Executive Director. Elie graduated from Columbia University in 2004 with a degree in Religion, and spent the next several years in the hedge fund industry. He co-founded GiveWell in mid-2007.
Natalie Crispin | Senior Research Analyst. Natalie graduated from Swarthmore College in 2009 with a degree in Economics. She joined GiveWell in July 2009.
Josh Rosenberg | Senior Research Analyst. Josh graduated from Pomona College in 2013 with a BA in Philosophy and Economics. He joined GiveWell in July 2013.
Devin Jacob | Operations Associate. Devin graduated from UC Berkeley in 2005 with a BA in History. He received an MA in History from New York University in 2012. In addition to teaching history to college students, he has worked as a bibliographer, used book seller, geology lab assistant, and commercial salmon fisherman. He joined GiveWell in September 2014.