Apache Kafka - Apache Kafka is an open-source message broker project developed by the Apache Software Foundation written in Scala.
Software AG webMethods - Software AG’s webMethods enables you to quickly integrate systems, partners, data, devices and SaaS applications
RabbitMQ - RabbitMQ is an open source message broker software.
Azure Service Bus - Learn how to set up messaging that connects applications and services across on-premises and cloud environments. Tutorials, videos, API references, and more.
ZeroMQ - ZeroMQ is a high-performance asynchronous messaging library.
IBM App Connect - IBM App Connect is the all-in-one integration tool for connecting apps, integrating data, building APIs and acting on events