Quite a few publishers specializing in translation have launched in the US/UK in the past few years, and among the most impressive recent entries is Deep Vellum.
At Publishing Perspectives publisher Will Evans describes starting-up, in Mentors, Frankfurt and Building a Translation List from Scratch -- noting for example that a selling point is:
What I can offer is a nimble agility to try new things to move books months and years after they are published.Given the sclerotic condition of so many old-time publishers one can see (and appreciate) the appeal.