Annual report 2025: participation across our member societies

Summary

Across the societies we work with, in-person congress attendance recovered to slightly above pre-2020 levels, while virtual participation settled at roughly a quarter of total registrations — well below its peak, but stable for the third consecutive year.

Membership

  • Overall membership grew modestly, driven almost entirely by early-career categories.
  • Renewal rates were strongest where a member-only resource had been used at least once in the preceding year.
  • Lapsed-member reactivation remains the weakest part of the cycle for most societies.

Events

  • Median lead time between registration opening and first registration shortened again.
  • Late registration continues to concentrate in the final fortnight, with implications for catering and badge production.
  • On-demand content is watched mostly in the six weeks after the meeting, then falls away sharply.

The pattern across almost every dataset this year is concentration: the same total, arriving later and in a narrower window.

What we expect next year

Continued growth in early-career membership, further compression of registration timelines, and increasing pressure to justify the virtual track on something other than headline attendance figures.