We are an information security company in Europe using Rust for performance-critical parts of our Backend. Of course, that's just one anecdotal example, but I'

We are an information security company in Europe using Rust for performance-critical parts of our Backend. Of course, that's just one anecdotal example, but I'd encourage you, dep_b, to look for openings. I'd guess that only very few companies use Rust exclusively right now, because of its relatively young age and because it frankly doesn't make sense everywhere, but many use another main language plus Rust.