Collaborations have been carried out with groups at:
University of Adelaide
Australia National Telescope Facility, CSIRO Division of Radiophysics
University of Bologna
Boston University
University of Bremen
California Institute of Technology
University of California, Berkeley
University of California, Riverside
University of California, Santa Barbara
University of California, San Diego
Cambridge Positioning Systems, Ltd.
Cambridge University Computer Laboratory
Cambridge University Department of Applied Mathematics and Theoretical Physics
Cambridge University Department of Chemical Engineering
Cambridge University Department of Metallurgy and Materials Science
Cambridge University Engineering Department
Centre for Astrophysics, Cambridge MA.
University of Chicago
University of Durham
NFRA Dwingeloo
ESA
ESO
FCRAO
Goddard Space Flight Center
University of Hawaii, Manoa
Institut d'Astrophysique, Paris
Instituto de Astrofisica de Canarias
Institute of Astronomy, Cambridge UK
IRAM
JACH
JIVE
JPL
Kapteyn Institute
University of Kiel
Kodak Scientific Imaging Systems
University of Köln
Kyoto University
University of Leeds
Leiden University
Liverpool John Moore's University
Lockheed
McMaster University
Marshall Space Flight Center
University of Maryland
Max Planck Institut für Extraterristrische Physik, Garching
Max Planck Institute für Theoretical Astrophysik, Heidelberg
MRC Laboratory of Molecular Biology, Cambridge
National Radio Astronomy Observatory
Naval Research Laboratory
University of New South Wales
NFRA
Northwestern University
Nuffield Radio Astronomy Laboratory (Jodrell Bank)
The Open University
Oxford University
University of Pennsylvania
University of Rome
Royal Greenwich Observatory, Cambridge UK
Royal Observatory, Edinburgh
St. Mary's University, Halifax, Nova Scotia
St. Patrick's College, Maynooth, Ireland
Sacramento Peak, NM.
Scientific Generics, Ltd.
Space Sciences Lab., University of California, Berkeley
Space Telescope Science Institute, Baltimore
Sternberg Institute
SUNY
Universities Space Research Association, Huntsville
University of Sydney
University of Texas at Austin
University of Toronto
Torun Radio Astronomy Observatory
University of Wales, College of Cardiff
Waseda University, Tokyo