Yes and no. Sunrise is based around "hubs" which is a term Sunrise uses for local chapters - you can find a list of hubs
here. These hubs are pretty decentralised and can generally make decisions on their own; what normally happens is that Sunrise leadership comes up with an idea (for instance, "let's protest politicians' houses"), releases some guidelines (like
these) and the hubs decide how to do whatever leadership's told them to do. The idea is basically that if some activists decide to bomb a pipeline or take part in riots for "climate justice", the leadership has plausible deniability and can say "we never
told them to do that, we just told them to take 'direct action' against pipelines and 'fight for racial justice', it's not our fault if people decide to use 'a diversity of tactics' to do that".
I don't know who runs those hubs and it would probably be a nightmare to find out given there are about 400 of them. Likewise, Sunrise aren't exactly forthcoming when it comes to telling you who's on their "board of directors", and their Wikipedia article only talks about
Sara Blazevic and
Varshini Prakash. Prakash is apparently their "executive director" and from what I can work out is in charge.
So yes, we know the name of the woman at the top of Sunrise as well as one of its co-founders and we know quite a bit about them, but other than that we don't really know that much.