Franz Allegro is a CL compiler available for Linux, Unix, and Windows. Free and commercial versions.

CL interpreter. Home site: description, mail list, archives, news, CVS, downloads, links. [Open Source, GPL]

Shared library implementing Lisp dialect that is lightweight, fairly fast, highly extensible. Has interpreter, byte-code compiler, virtual machine. Programs may use interpreter as an extension language, or it may be used for standalone scripts. [Open ...

General purpose scripting Lisp dialect for Cygwin, FreeBSD, Linux, Mac OS X, Solaris, Win32; like Scheme but with dynamic scoping; GUI version has IDE with editors and source level debugger, Tcl/Tk frontend. [Open Source, GPL]

ANSI CL, runs on Java Virtual Machine, JVM. Has runtime system, compiler turns Lisp source to JVM bytecode, interactive REPL to develop programs. [Open Source, GPL]

Corman Lisp and PowerLisp compilers with support for 68k and PPC Macs. [Shareware/Freeware for personal use]

ANSI CL, has interpreter, Lisp to C compiler, can make standalone executables or libraries to call from C programs. [Open source, LGPL]

Multi-threaded CL, supports symmetrical multiprocessor (SMP) Unix systems.

Small dialect for low-end and embedded devices. Has compiler to bytecode and corresponding interpreter, coded in standard C, efficient, portable, can be compiled to very small executable or library. [Open Source, GPL]

A version of Berkeley Franz Lisp for 386-based NetBSD systems.