Dylan	Functional Objects is the company that makes a commerical Dylan implementation.
Cecil/Vortex	A University of Washington research group conducting research on programming language design and implementation, with an emphasis on these issues for object-oriented languages.
Harmonia	A University of Berkeley research group conducting research on software development productivity tools.
Deep Analysis	An MIT research group conducting research on a general-purpose technology for extracting precise, detailed information about programs. .
CMU/POP	A CMU research group whose goal is to understand, develop, and demonstrate the principles, processes, and supporting technologies for the construction of computing systems.
The Church Project	The Church Project is a Boston-based group of researchers dedicated to investigating the foundations, design principles and implementation techniques of programming languages.
Franz Inc.	Franz Inc. is a commercial Lisp vendor.