3M Company
ABB Ltd.
Agilent Technologies, Inc.
Airtest Technologies Inc.
Bacharach, Inc.
California Analytical Instruments, Inc.
Dragerwerk AG & Co. KGaA
Emerson Electric Co.
Gastech Australia Pty Ltd
General Electric Company
Honeywell International, Inc.
Industrial Scientific
MSA Safety Incorporated
Riken Keiki Co., Ltd.
Robert Bosch GmbH
Schauenburg Group
Siemens AG
Teledyne Technologies Incorporated
Thermo Fisher Scientific Inc.
Trolex Limited
Tyco Fire & Integrated Solutions AS
Yokogawa Electric Corporation