I don't know if the ACM is comparable. They run so many academic conferences that the list gets its own Wikipedia page [0]. Many are heavy hitters in their respective fields, like SIGGRAPH (graphics), SOSP (systems), and PLDI (programming languages). I think of them more as an academic publisher and organizer than as a professional association.

[0] https://en.wikipedia.org/wiki/Category:Association_for_Compu...