Another group of passionate life extension advocates hail from Russia and have formed Open Longevity: http://eng.openlongevity.org/
I interviewed Mikhail Baten and Anastasia Egorova at RAADfest 2019 and found out a little more about Open Longevity. Now on the podcast page.
A funny side-story. Mikhail has been involved in public demonstrations and protests in Moscow (promoting radical life extension). During one demonstration he was beaten and arrested by the police. At RAADfest (in Las Vegas), he asked me what would happen if we demonstrated for life extension in the street. I told him that if a couple hundred people from the conference went out on Las Vegas boulevard, held signs, and blocked traffic, the police would show up and tell us we had to stop otherwise we would be arrested and fined. If we didn't leave then they would eventually put us in zip-tie handcuffs, take us to the county/city jail/courthouse, give us a $100 fine and let us go. Mikhail looked at me and asked "That's it?!". He then said, "why aren't we doing this right now!?". He was especially adamant about doing a demonstration after I told him that we would get a lot of local media coverage for such an impromptu protest and we wouldn't even have to contact the media ahead of time - they would just show up.