Feel free to get in touch!

If you want to contact the Community Health team about any ideas or concerns you have, please fill out this form (with the option to remain anonymous) so we can ensure your message reaches the relevant team member.

If you want to speak about anything else but aren't sure who to contact, please fill out this form; we'll direct you to the right person.

Executive Team

Zach Robinson


Zach joined as CEA's CEO in February 2024. He also serves as the CEO of CEA's fiscal sponsor, Effective Ventures Foundation USA. Previously, he was Chief of Staff at Open Philanthropy (OP), where he managed communications and grantmaking teams, developed organisation-wide policies to help OP scale, and identified new Global Health and Wellbeing cause areas to increase OP's giving. Prior to his work at OP, he was the director of product and strategy for startup Ivy Research Council (now Veris Insights) and worked as a management consultant at Bain and Company.

Oscar Howie

Chief of Staff

Oscar supports the work of CEA's Executive team. Before joining CEA, Oscar was Chief of Staff to a member of the UK House of Lords. He studied philosophy, politics, and economics at the University of Oxford.

Angelina Li

Data Analyst

Angelina works on data analytics and data operations for the Executive team. Previously, she worked on content for the EA Global conference series and, before CEA, as an economic consultant at Analysis Group. Angelina founded the EA group at Wellesley College, where she studied economics and computer science, and has been interested in EA since 2014.

Eli Nathan

Interim Head of Operations

Eli joined CEA in April 2022 and is currently working to navigate our spin-out from Effective Ventures Foundation and build an in-house Operations team. He previously managed the EA Global conference series as a member of the Events team, and before that worked as an Operations Assistant at Open Philanthropy. In that role, he contributed to events and office management, and served as a personal assistant to the Co-CEO. Eli came across EA in 2016 while studying Chemistry at the University of Oxford, and was involved in various EA group organising projects thereafter.

Events Team

Amy Willey Labenz

Head of Events

Amy manages a team of nine people to put on a wide variety of highly-impactful events, ranging from large conferences to small, specialised retreats. Her role includes managing our three program leads, budgeting and fundraising, and stakeholder management. Previously, Amy was Chief Operating Officer of the Machine Intelligence Research Institute, where she was also Executive Producer of The Singularity Summit. Amy earned a Juris Doctor degree from New York University after graduating summa cum laude from Alma College with a BA in foreign service.

Sophie Thomson

Partner Events Program Lead

Sophie leads the Partner Events team, a new program within the CEA Events team which collaborates with subject matter experts to run high-impact events. Prior to joining the Centre for Effective Altruism, she was a Business Analyst for a specialist risk advisory firm and Head of Operations at Longview Philanthropy. She has a first-class degree in Liberal Arts with a major in Philosophy from King’s College London.

Ollie Base

Community Events Manager

Ollie supports EAGx conference organisers and investigates opportunities to expand CEA's events portfolio. Previously, he worked as a Research Analyst at Longview Philanthropy, a non-profit which advises major philanthropists focused on safeguarding the long-term future. Before Longview, Ollie was an EA group organiser at the University of Warwick and in Cologne, Germany. He holds a first-class degree in philosophy with psychology from the University of Warwick.

Ivan Burduk

Senior Events Associate

Ivan works on systems and communications for the EA Global conference series. Before joining CEA, Ivan was a community builder for Effective Altruism Australia and New Zealand. He has a BE(Hons) in Chemical Engineering and Materials Science, and a BSc in Physics and Chemistry from the University of Auckland, where he co-founded the EA group in 2015.

Frances Lorenz

Events Associate

Frances works on communications, administration, and volunteer coordination for EA Global events. Previously, she worked on community building in the AI Safety space. She holds a degree in Integrated Science with a concentration in Math and Statistics from McMaster University, located in Canada.

Arthur Malone

EAGx Coordinator

Arthur Malone supports the independent organisers who run EAGx conferences. Previously he worked in EA community building as part of Effective Altruism New York City. He also has management, operations, and event planning experience with multiple small businesses, and assisted research at the Salk Institute. He has a degree in Animal Physiology and Neuroscience from the University of California San Diego.

Sarah Gokhale

Production Associate

Sarah serves as the producer for EA Global events. Previously, she worked in marketing and communications in the clean energy sector, and as a producer at an advertising agency. She holds a PhD in Philosophy from the City University of New York Graduate Center.

Groups Team

Jessica McCurdy

Head of Groups

Jessica leads the Groups team at CEA. She manages subteams focused on university EA groups, EA virtual programs, and city and national EA groups. The Groups team supports over 300 groups across all populated continents and has funnelled several thousand people through virtual programs in the past few years. Before joining CEA, she studied Cognitive Science at Yale University. There, she led Yale EA, helped seed new EA groups, and created trainings and workshops for group organisers.

Joris Pijpers

University Groups Team Lead

Joris creates scalable systems and programs to help support effective altruism university groups around the world. Before joining CEA, Joris organised EAGxRotterdam, and co-founded and chaired the Positive Impact Society Erasmus. He holds a BSc degree in Liberal Arts and Sciences from Erasmus University College in Rotterdam, the Netherlands, where he majored in Philosophy, Politics and Economics.

Naomi Nederlof

CBG Manager

Naomi leads grant evaluations and provides support for the community-building grants program. Alongside working for CEA, she is the executive director of the Swiss Existential Risk Initiative. Prior to CEA, Naomi was the director of EA Switzerland and EA Geneva and worked for various non-profits. She holds a BSc in Psychology and an MSc in Culture, Organisation, and Management.

Cian Mullarkey

Virtual Programs Associate

Cian works on strategy and operations for the Virtual Programs team. Previously, he ran the Effective Altruism groups at Trinity College Dublin and New York University, where he studied Mathematics and Economics. He also worked as a program manager for Berkeley Existential Risk Initiative.

Jemima Jones

University Groups Support Associate

Jemima helps run the University Groups Team's mentorship program. Before joining CEA, she interned for the Maternal Health Initiative, the Global Challenges Project, and a member of the UK House of Lords. She ran the Effective Altruism group at Durham University, where she studied Chinese Studies.

Alex Dial

Groups Support Associate

Alex leads broad group support programs and contributes to system improvements within CEA’s Groups team. Before joining CEA, Alex organized the Effective Altruism group at the University of Texas at Austin, where he studied Mechanical Engineering and Computer Science.

People Operations

Caitlin Elizondo

Head of People Operations

Caitlin works to improve staff wellbeing and productivity, and manages CEA's recruiting and onboarding. She has a background in operations work from her time with the Frameworks Institute in DC and working in academic administration as a graduate student at Georgetown. She has a BA in linguistics from Haverford College and an MS in sociolinguistics from Georgetown University.

Hillary Grills

Project Manager, People Operations

Hillary supports the People Operations team in transforming their systems to increase efficiency and usability. Before joining CEA, she worked on corporate sporting events in North America for clients such as Major League Baseball (MLB) and the National Hockey League (NHL), as well as Chinese lantern festivals in Europe. She also helps run the EA Ottawa group and holds a Bachelor of Fine Arts in Theatre Production from Toronto Metropolitan University.

Online Team

JP Addison

Head of Online

JP previously worked on the team as an engineer and Engineering Manager. He joined CEA from an aerospace startup where he wrote data processing code. He also co-founded the South Bay Effective Altruism meetup group. Before that, he was a research assistant writing code for simulations of quantum computers. He holds a BS in physics from Georgia Tech.

Sarah Cheng

Senior Software Engineer

Sarah graduated from MIT with a BS in Electrical Engineering and Computer Science and a minor in Philosophy. She worked at and then at BetterLesson, supporting educators across the United States.

Lizka Vaintrob

Senior Content Specialist

Lizka runs the EA Newsletter and the non-engineering side of the EA Forum, and helps with a wide range of other content projects. Before starting at CEA, she worked in maths education and was a visiting research fellow at Rethink Priorities. Lizka holds a BA from Columbia University with a double major in mathematics and comparative literature.

Will Howard

Software Engineer

Will is a software engineer on the EA Forum. Before joining CEA he previously worked as a developer for a supply chain logistics startup. He holds a BA in Physics from the University of Oxford.

Ollie Etherington

Senior Software Engineer

Ollie works as a senior software engineer for the EA Forum. He previously worked as an engineer for a popular chess website, and before that as a musician and music teacher. He holds a BSc in mathematics and physics from The Open University.

Agnes Stenlund

Senior Product Designer

Agnes designs the EA Forum and other digital products at CEA. She previously worked as a product designer at Intercom and Basecamp. Before she started designing software she worked as a photographer.

Toby Tremlett

Content Manager

Toby works with Lizka, running the EA Newsletter and the non-engineering side of the EA Forum, as well as facilitating a range of other content projects. Before starting at CEA, he worked as the research assistant for Richard Fisher's book The Long View, and (amongst other things) as a writer for organisations such as CAIS and Non-Trivial. Toby holds a BA in Philosophy from the University of Warwick, where he was Vice President of the Effective Altruism Society.

Community Health Team

Nicole Ross

Head of Community Health and Special Projects, Trustee (EV US)

Nicole leads the Community Health team, conducts analysis on broad community health questions, and provides internal consultation to other teams within CEA. Nicole has also coordinated with other EA organisations and projects across a broad range of areas, such as communications and politics. Before joining CEA, Nicole worked at the Open Philanthropy Project, GiveWell, and the Center for Healthcare Ethics at Cedars-Sinai.

You can contact Nicole via this form (you'll be anonymous by default).

Chana Messinger

Deputy Head of Community Health and Special Projects

Chana supports high school outreach efforts and investigates areas of improvement for community epistemics (how we form beliefs about the world). Before joining CEA, Chana was a high school maths teacher in Pittsburgh, New York, and London. She has also contracted for the Machine Intelligence Research Institute. She holds a BA from the University of Chicago and an MA from Columbia University.

You can contact Chana via this form (with the option of being anonymous).

Julia Wise

Community Liaison

Julia oversees community wellbeing. Her work includes projects such as improving community members’ access to mental health services and conveying feedback from more junior to more senior community members. She is also a go-to person for specific cases where community members find themselves in challenging situations. She serves on the board of GiveWell and writes about effective altruism, parenting, and other topics at Otherwise. She was president of Giving What We Can from 2017-2020. Before joining CEA, Julia was a social worker, and studied sociology at Bryn Mawr College.

You can contact Julia via this form (you'll be anonymous by default).

Catherine Low

Community Liaison

Catherine is the main contact for community health support for groups, and also works on assessing and mitigating risks to the EA community. Alongside Julia, she is a go-to person for specific cases where community members find themselves in challenging situations. Before joining CEA, Catherine managed the Students for High-Impact Charity program and taught science, physics, and ethics at the high school level. She was also heavily involved in EA community building in New Zealand and Australia. Catherine holds a PhD in physics from the University of Melbourne.

You can contact Catherine via this form (you'll be anonymous by default).

Charlotte Darnell

Community Liaison

Charlotte is one of the people community members can contact about challenges or bad experiences they have in the community. Before joining the Community Health team, Charlotte worked on the Events team and has also worked on various community-building projects outside of CEA, such as EAGxOxford 2022, UK high school outreach, and university group events. She studied History and Modern Languages at the University of Exeter.

You can contact Charlotte via this form (you'll be anonymous by default).

Eve McCormick

Community Health Project Manager and Senior Assistant

Eve supports the work of Nicole and other members of the team and is responsible for the team's internal systems. Before joining CEA, she was the co-director of EA Cambridge. Eve holds a degree in Anglo-Saxon, Norse and Celtic from the University of Cambridge.

Lisanne van den Bosch

Community Health Team Assistant

Lisanne supports Catherine and other members of the team and conducts analyses on our work. Before joining our team, Lisanne worked as a contractor on CEA’s Groups team and has also been a board member at the Positive Impact Society Erasmus. She holds a bachelor's degree in Psychology from Erasmus University Rotterdam and a master's in Global Mental Health from Trinity College Dublin.


Emma Richter

Communications Associate

Emma supports communications efforts across EA cause areas and the community. Before joining CEA, Emma worked in non-profit communications and academic operations. She holds an MA in the social sciences and a BA in English and History.

Trustees and Structure

CEA is an Effective Ventures project. Effective Ventures Foundation (UK) and Effective Ventures Foundation USA Inc. are separate charities that collaborate closely under the “Effective Ventures” name.

  • EV UK’s board consists of Eli Rose, Lincoln Quirk and Patrick Gruban
  • EV US’s board consists of Anna Weldon, Eli Rose, Johnstuart Winchell, Nicole Ross and Zach Robinson