ORBs
Orbix C++ and OrbixWeb (Java) from IONA : http://www.iona.com
Orbacus C++ and Java : http://www.ooc.com
Visibroker C++ and Java from Visigenic : http://www.visigenic.com
DAIS C++ and Java from PeerLogic http://www.peerlogic.com.products/f_dais.htm