Apache ODE (Orchestration Director Engine) executes business processes written following the WS-BPEL standard. It talks to web services, sending and receiving messages, handling data manipulation and error recovery as described by your process definition. It supports both long and short living process executions to orchestrate all the services that are part of your application.

IBM has been a long-supporter of BPEL, and numerous IBM products support BPEL as well.

http://www-306.ibm.com/software/integration/wid/
WebSphere Integration Developer is a common tool for building SOA-based integration solutions across WebSphere Process Server, WebSphere ESB, and WebSphere Adapters. WID enables construction of process and integration solutions using drag-and-drop technology without having a working knowledge of Java. It enables rapid assembly of business solutions by wiring reusable service components.

IBM has been a long-supporter of BPEL, and numerous IBM products support BPEL as well.

http://www-306.ibm.com/software/integration/wps/
WebSphere Process Server helps deliver an SOA infrastructure that provides one common model to orchestrate, mediate, connect, map, and execute the underlying IT functions. With this, WebSphere Process Server simplifies integration of business processes by leveraging existing IT assets as reusable services, but without the complexities associated with traditional integration methodologies.

JBoss jBPM is a framework that delivers workflow, business process management (BPM), and orchestration in a scalable and flexible product. It enables enterprises to model and automate business processes that involve people, applications, and services.

The distinctive sign of JBoss jBPM is the power of choice it gives to analysts and developers. A generic process execution platform lies at the core of the product. Multiple process definition languages are built on top: BPEL, jPDL and Pageflow. Each comes with a unique feature set.

Sonic BPEL Server, a member of the Sonic ESB
Product Family, adds standards-based service orchestration to the intelligent
routing capabilities of Sonic ESB. Through a drag-and-drop GUI in Sonic’s
Eclipse-based Workbench, Sonic BPEL Server improves developer productivity by
enabling service composition and event correlation with minimal programming.
With patent-pending distributed debugging technology, Sonic makes it easy to
develop, test and deploy any combination of BPEL, intelligent routing, and
integration services.