GreenVulcano®ESB, The Open Source Enterprise Service Bus!
GreenVulcano® ESB is a platform for application integration, able to connect multiple heterogeneous systems. Its plug-in architecture allows for unlimited expansion and customization, providing the solution to many different business integration problems. GreenVulcano® brings flow-related concepts such as transformation and routing to the Service-Oriented Architecture.
ChainBuilder ESB is Java Business Integration (JBI) compliant open source solution for use in Service Oriented Architecture (SOA) environments. ChainBuilder ESB's graphical integration enables new and older applications to easily enter into SOA.
MuleDesigner is an extension of Publisher Subscriber model intended to be used by telecommunication industry as a flexible code generated billing mediation system and ESB for JBoss . Currently the supported protocols are Telnet, FTP, SSH, HTTP,SMPP.