Founded by Russian founder of VKontakte, Pavel Durov. I believe they're now headquartered in Germany.
See Wikipedia and https://www.securemessagingapps.com
Pavel Durov is the founder (after he left Russia).
As for numbers: http://www.businessofapps.com/telegram-statistics-and-revenu...
https://telegram.org/blog/100-million https://telegram.org/blog/15-billion
Re:Telegram Desktop reaches version 1.0
by akvadrako on Thursday January 12, 2017 @11:45AM
(#13383735)
That's because it's how they sell themselves. From their homepage:
> Telegram is a cloud-based mobile and desktop messaging app with a focus on security and speed.
Unfortunately, it tricks a lot of people.
Does anybody know how many users are on Telegram and who owns them? Can you invest in them?