On September 13th, 2025, we (EA France) hosted the EA Summit: Paris, in a very central location in the French capital. This event was part of the international series of EA Summits funded by the Centre for Effective Altruism.

This report outlines what went well, what we could improve, and the lessons we learned, with the hope that it can serve as a resource for others planning similar events.

Key facts and figures

• 217 participants (including volunteers) checked in, along with 20 speakers and 3 photographers/filming crew members, totaling 240 attendees (largest EA Summit to date)
  • How familiar were the participants with EA?
    • When RSVPing, 89% declared at least “some familiarity, even though I couldn’t clearly define EA”, and 41% declared at least “really familiar, I’ve spent a lot of time thinking about effectiveness and within the community”.
    • From experience, we think that many people overestimate their own understanding of or EA.
  • How familiar were the participants to EA France's staff?
    • Half the participants were completely unknown to the organizers (which does not mean they were all new to EA).
• 12 sessions covering global health, climate change, animal welfare, AI risks, nuclear security, and more
• 15 organizations participated [...]

---

Outline:

(03:56 ) Context

(05:13 ) Preparation phase

(05:16 ) Venue

(05:45 ) Communication and advertising

(07:00 ) Miscellaneous details

(08:42 ) How the event went

(14:17 ) Results

(14:20 ) Feedback from participants

(15:19 ) Impact on the popularity of EA France's activities: limited

(17:02 ) Impact on the existing community

(18:02 ) Costs

(18:05 ) Expenses break-down

(18:26 ) Time costs

(19:22 ) Acknowledgments

---

First published:

November 6th, 2025

Source:

https://forum.effectivealtruism.org/posts/aHzcXNnL3gQYxRbH2/ea-summit-2025-paris-report

---

Narrated by TYPE III AUDIO.

---