Implements CL for Linux on x86 hardware, has large CL subset as a shared library that can link with Lisp and C code to make efficient, small programs; suitable for embedding in other programs.

Common Lisp development system. Includes command-line and IDE interpreters. Possibility of creating EXE-files. [Free non-commercial and education use]

DOS CL implementation with CLOS. Download, full CL reference manual. From Sapiens Software Corp. [free copyrighted unsupported shareware]

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

Compiler and runtime system for ANSI CL. Has interactive environment including an integrated native compiler, debugger, many extensions; runs on many platforms. [Open Source, GPL]

Minimilist Lisp dialect and virtual machine. Reference, tutorial, FAQ. Downloads. [Open source, GPL]

ISLisp interpreter, coded in C, ported to over 90 architectures, 16- to 64-bits. [commercial, free non-commercial use]

Was Jargol. Proposal with wish/feature list.

Object-oriented language for researchers, experimenters, engineers, for large-scale numerics and graphics. Merges 3 languages: (1) weakly-typed, garbage-collected, dynamically scoped, interpreted language with Lisp syntax, (2) strongly-typed, lexicall...

ANSI CL and IDE with cross-platform GUI tools for Linux, Mac OS X, Unix, Windows. Related products and services. Free and commercial versions.