>>10
ML(SML,O'Caml), any .NET language, any VM language, any real Lisp (CL implementations, Scheme implementations, Clojure and others), Haskell, Smalltalk, Dylan, and pretty much most modern languages that you can find (exception to these rules are toy languages designed by unexperienced people like PHP or newLISP, which use refcounting).
C,C++,Asm, other imperative statically typed languages also support gcing as a third party library (not precise).