I've heard of a few but since we're a Publisher on Nintendo Switch we've never had a need to work with any of them. Here are the ones we've heard good things about: Pineapple Works and Ratalaika Games. I recently got contact by Silesia Games also.
We only publish games created by our own studio. We do not have the features in place that you would expect from a publisher. If we change direction into a 3rd party publisher we'll let you know.
