AddMS, Advion BioSciences, Agilent Technologies, AMD Intectra GmbH:, Analytica of Branford, Inc., Bear Instruments Inc., BME - Bergmann Messgeraete, Bruker Daltonics Inc., Comstock Incorporated, Dephy Technologies

Ionalytics Corp., LaserBio Labs, Mass Spec UK Ltd., MS Vision

Adpen Laboratories, Inc., Bio-Analytical Mass Spectrometry Facility, BMS Mass Spectrometry and Protoemics Facility, Cambridge University Mass Spectrometry WWW Server, Iso-Analytical Ltd., Kent Mass Spectrometry, M-Scan, Mass Consortium Corp., Mass Spectrometry Facility, Mass Spectrometry Facility at OCI, HD