Apache Camel - Apache Camel is a versatile open-source integration framework based on known enterprise integration patterns.
TIBCO BusinessWorks - TIBCO BusinessWorks is a platform for developing new services and integrating applications with minimal code required.
Software AG webMethods - Software AG’s webMethods enables you to quickly integrate systems, partners, data, devices and SaaS applications
Apigee - Intelligent and complete API platform
IBM App Connect - IBM App Connect is the all-in-one integration tool for connecting apps, integrating data, building APIs and acting on events
Camunda - The Universal Process Orchestrator