The Barringer Crater Company

National Aeronautics and Space Administration (NASA)

Institute of Space and Astronautical Science (ISAS)

Japan Aerospace Exploration Agency (JAXA)

Japan Polar Research Association

National Institute of Polar Research (NIPR)

NASA Mars Program Office

Agilent Technologies

CAMECA

Lockheed Martin Space Systems Company

National Electrostatics Corporation (NEC)

TESCAN

International Meteorite Collectors Association (IMCA)

Planetary Studies Foundation (PSF)

Anonymous Meteorite Dealer

John Wiley & Sons

The Meteoritical Society

Lunar and Planetary Institute (LPI-USRA)

Space Sciences Laboratory (SSL), University of California, Berkeley