IntelliJ IDEA and other products by JetBrains. Their R&D is in Novosibirsk and St. Petersburg, and Sales are global.

Their R&D is also in Munich and Boston, and they're headquartered in Prague.

Their IDEs can't really be fairly said to come from Russia.

Virtually no big russian software companies incorporate in Russia, because the criminal raiders will take over the company - see Yandex, Parallels, Kaspersky Lab, all are registered in Europe with those companies controlling all the IP.

You just explained how pressure of natural selection stimulates talent in Russia. Once it is squeezed into civilization, it flourishes.

their EMEA Sales are in Prague. Anyone can go and see their offices map on https://www.jetbrains.com/company/contacts/ . By the way, most contact second names are distinctively Russian. And the name of their own programming language - Kotlin, is a tribute to island in front of St. Petersburg.