I knew a guy from Sweden who worked there and he always nominated CERN as his O club.
a friend of mine from Uni is the @cern social media person. cool job
The CERN club (which is open to non-CERN people) still exists, and functions as the de facto Geneva club since (believe it or not) there is no "regular" orienteering club in Geneva. (Any Geneva club would face the somewhat unusual problem that virtually all the usable local forest terrain is in another country).
Kind of like the ACT scene.
seems legit the CERN club would represent a town where you have to go to another country to find some terrain, given a fair chunk of their 'office' is under said other country
CERN O Club organizes very nice events in the Jura (both sides of the border, last year for example Swiss national events on 25/26 june). It is common for "Swiss" events in the Jura to be organzied in France or to cross the border between Switzerland and France during the race (and we never carry an ID for that...).
And in general, orienteering tends to be less popular in some French speaking Swiss cantons (including Geneva, Valais and the Canton of Vaud with the City of Lausanne), don't know why.