• ABB (ABB Advant, ABB Accuray, ABB Power Systems, Bailey)
• AspenTech (CIM21, IP.21)
• Emerson Electric (Fisher-Rosemount, Intellution)
• ESCA
• General Electric
• GSE Systems
• Honeywell (TPS, TDC3000, Measurex, PHD)
• OPC DAS (1.0a and 2.0) compliant servers
• Rockwell Automation (Allen-Bradley)
• Siebe Intelligent Automation (Foxboro, Wonderware)
• Schneider Automation (Modicon)
• Siemens (Moore Products)
• Westinghouse
• Yokogawa

...And over 350 more