Beanstalkd

Beanstalk is a simple, fast work queue.

AWS Organizations

AWS Organizations from Amazon Web Services (AWS)

Amazon Simple Queue Service is a fully managed message queuing service.

Job queue for Android to easily schedule jobs that run in the background, improving UX and application stability.

Apache Kafka is an open-source message broker project developed by the Apache Software Foundation written in Scala.

Apache Qpid makes messaging tools that speak AMQP and support many languages and platforms.

CloudAMQP automates every part of setup, running and scaling of RabbitMQ clusters. Available on all major cloud and application platforms.

Real-time message streaming as a service. Powered by Apache Kafka. Fully managed, epic performance & superior support.

Simple pub/sub messaging for the web

Gearman provides a generic application framework to farm out work to other machines or processes that are better suited to do the work.

An easy way to perform background processing in .NET and .NET Core applications.

IBM MQ is messaging middleware that simplifies and accelerates the integration of diverse applications and data across multiple platforms.

Simple, Robust Job Scheduling For Your Application

A lightweight message queue for Node.js that requires a Redis server.

RabbitMQ is an open source message broker software.

ZeroMQ is a high-performance asynchronous messaging library.

Database based asynchronous priority queue system – Extracted from Shopify - collectiveidea/delayed_job