A few guests attend the Bilderberg, sometimes for only a short period, without a mention on the conference programme. As of January 2021, these lists still include only very few such visitors.
- An alphabetical list of all 2959 guests, and of the 44 who are known to have also attended Le Cercle:
- Lists of guests by #visits:
- Lists of guests by nationality,
- Lists of guests by birth year. (a work in progress: - currently only 2622/2959 have known birth date).
- Lists of guests by age. (under construction)
As of 2019, Wikipedia was rejecting additions to their List of Bilderberg participants as unreliable even when they cited documents produced by the Bilderberg groups themselves (i.e. official guest lists). Their list as of 2019 had only a few hundred names and the carried a header warning that "This is a dynamic list and may never be able to satisfy particular standards for completeness.