The following Schemes come with compilers (which does not necessarily mean that they can produce standalone executables):
Native compilers: Chez, Larceny, MIT, Vicare, Racket CS
Compilers to C: Bigloo, Chicken, Cyclone, Gambit, Hotdog (port of Scheme48), Larceny, MIT, Owl Lisp, Rhizome/pi, RScheme, Scheme->C, SCM, Stalin
Compilers to JVM bytecode: Bigloo, Hotdog (port of Scheme48), JScheme, Kawa
Compilers to CLR bytecode: Bigloo, Hotdog (port of Scheme48), IronScheme, Larceny (older version), Luna
Compilers to private bytecode (with JIT): Pycket (port of Racket to RPython), Racket BC, Guile 3.x
Compilers to private bytecode (without JIT): Chibi, Elk, FemtoLisp, Foment, Gauche (conjectural), Guile 2.x, Mosh, Oaklisp, Owl Lisp, Picrin, Rep, RScheme, Sagittarius, Scheme 48, STklos, Shoe(?), SXM, Vx, Unlikely, VSCM, Wraith, XLisp, Ypsilon (probably incomplete), Scheme 9 (version 20181023 or later)
Tree-walking interpreters: Chicken, SISC, NexJ, KSi, SigScheme, TinyScheme, MiniScheme, Scheme 9 (before version 20181023), S7, SIOD, BDC, Schemik, UMB, Llava, Sizzle(?), LMU(?), dfsch, Inlab
Schemes for specialized CPUs are not listed here. I have not tested most of these compilers.