Emqx is a company based in China, operating within the Business Services sector, specifically focusing on custom software and IT services. Founded in 2017, Emqx has established itself as a provider of solutions for Internet of Things (IoT) applications, with a particular emphasis on MQTT (Message Queuing Telemetry Transport) broker technology. The company has published a document titled "A Practical Guide to MQTT Broker Selection," which serves as a comprehensive resource for IoT service providers. This guide discusses critical factors to consider when selecting an MQTT broker, including security, clustering, auto-scaling, and data integration. It also provides a detailed comparison of popular MQTT brokers, highlighting their respective advantages and disadvantages to aid users in making informed decisions tailored to their specific project requirements. Emqx's expertise in MQTT technology positions it as a knowledgeable entity in the evolving landscape of IoT solutions. The company employs between 51 to 200 individuals and has reported revenues of approximately 20 million USD.