So established scientists from Western countries?
https://www.forbes.com/sites/stuartanderson/2011/11/11/a-vet...
Edit: I apologize for the snark. As long as Hungary, Russia, Poland are counted as the West (and they generally are), then I agree with you.
"Why did the immigrant scientists succeed? Clearly these were some of the most highly-skilled people on earth but it was something more. Beyond their skills, Laura Fermi notes the unique characteristics and emotions that the foreign-born scientists brought to the atomic project: “The determination to defend America at all costs spurred the newcomers no less than the Americans, and the European-born may have come to this determination somewhat earlier than the native-born, driven by stronger personal emotions. The picture of their country under Nazi power in the event of a German victory was something the Americans could imagine only with difficulty.” That was not the case for those who had already seen their countries overrun."
I'm not talking about a billion dollar startup, but trillion-dollar technology. Think Manhattan project, not WhatsApp.