All the ones I listed are the ones where they are significant contributors.
The much larger set of where they are mostly users, like the BSD userland tools, curl, Python, Perl, Tcl, Ruby, and so forth, I omitted. There are just too many.
LLVM/Clang and Grand Central Dispatch comes to mind. The MAC framwork is also a shared effort, but I don't know who is doing the heavy lifting. It's something.
The much larger set of where they are mostly users, like the BSD userland tools, curl, Python, Perl, Tcl, Ruby, and so forth, I omitted. There are just too many.