That's another problem with the idea of tech sovereignity. Anything succesful, even if it started in Europe, will go global, including literally going to the USA

That's why the European way to tech sovereignty is (publicly-funded) free software. Cannot be bought by unlimited VC money from The Valley, and it benefits the rest of the world, which is a tiny drop, and hence a necessary one, in Europe offsetting the damages of colonization, past and present.

Basically every company has American investors. But for Mistral, ASML is the biggest, I think, and the french founders also still hold significant amounts.

And Black Forest labs is still headquartered in Freiburg, Germany. They just have a lab in SF.