Members of the Java real-time group include HP, Siemens, Microsoft, Rockwell, Access, Aonix, Cyberonix, Enea OSE Systems,
Intermetrics, Lynx Real-Time Systems, NewMonics, Omron, TeleMedia Devices and Yokogawa Electric.
Guest Systems Council participants were: Apollo Computer, Inc., Atherton Technology, Bolt Beranek and Newman, Inc., Cadre Technologies, Inc., Context Corporation, Data Base Engines, Inc., Digital Equipment Corporation, Flavors Technology, Inc., Gould, Inc., Index Technologies Corporation, Interactive Software Corporation, Interleaf, Inc.,
Intermetrics, Inc., Metier Management Systems, Inc., Personal Library Software, Quantitative Technology Corporation, Sun Microsystems, Inc., Symbolics, Inc., Texas Instruments, Inc., and Unitech Software, Inc.