James Herbert, Co-Director, Effectief Altruïsme Nederland and EAGxAmsterdam Team Lead

EAGxAmsterdam 2025 took place on 12–14 December at B.Amsterdam, bringing together 517 attendees from across Europe. This is a brief write-up of what went well, what didn't, and what I think other EAGx organisers can learn from it.

The headline numbers:

• 517 attendees (up 36% from 380 at EAGxUtrecht 2024) — one of the largest EAGx events in recent years, behind only EAGxBerlin 2025
• €387 cost per attendee (target was €520; 2024 was €586)
• 10 reported new connections per attendee (target was 10, 2024 was 10)
• 906 applications (34% above target)
• 57 GWWC pledges (26 full 10% Pledges + 31 Trial Pledges) — the strongest pledge outcome of any EAGx to date, and ahead of every EAG and EAGx event until that point except EAG NYC 2025. GWWC estimated this represents ~$2.9M in expected lifetime giving ($436K counterfactually adjusted).
• NPS of 63 (mean recommendation: 8.86/10)

Budget

Cost per attendee came in at €387, down from €586 at EAGxUtrecht 2024 — a 34% improvement while serving 36% more people.

The budget is dominated by venue and catering (~70%), with contractors (~23%) the next largest line. Compared to 2024 [...]

---

Outline:

(01:49) Budget

(02:35) The case for investing in marketing

(03:54) Content highlights

(05:10) What didnt work

(06:10) What Id tell other EAGx organisers

(08:14) Looking ahead

---

First published:

Source:

---

Narrated by TYPE III AUDIO.

---

Images from the article:

Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.