Aerionics Inc. Blackline Safety Corp. Carrier Global Corporation (Det-tronics Autronica)
Dragerwerk AG & Co. KGaA
Emerson Electric Co. GfG Instrumentation Inc. Global Detection Systems Corp. (GDS)
Halma plc
Honeywell International Inc. Industrial Scientific Corporation
Interscan Corporation
ION Science Inc
MSA Safety Incorporated
Process Sensing Technologies Ltd. (PST)
RKI Instruments Inc. Sensor Electronics Corporation
Teledyne Technologies Incorporated
Trolex Ltd.