Strategic Members

• Chevron
• ExxonMobil
• Honeywell
• ​Johnson Controls
• Schneider Electric (formally Invensys)
• Yokogawa
• Saudi Aramco

Technical Members

• ​Applied Risk
• Control System Security Center
• CSA Group
• DNV-GL
• ​exida
• Shell
• TUV Rheinland
• TUV SUD
• TrustCB
• YPF

Supporter Members

• WisePlant HQ
• ​Tailyn Technologies, Inc.

Government Members

• Information-Technology Promotion Agency of Japan (IPA)

Industry Participants

• ISA99 Standards Committee (includes representatives of NIST, DHS, National Labs, Chemical Sector and others)