HiveMQ provides a messaging platform for companies to connect devices to the internet, with a focus on fast, secure, efficient, scalable, and reliable bi-directional movement of data between devices and the cloud. Their flagship product, HiveMQ, is an MQTT-based messaging platform that includes an MQTT broker that scales to 10 million connected devices, elastic clustering for extreme reliability and fault tolerance, real-time monitoring of device data, and a flexible extension framework for easy integration into existing enterprise systems. They also offer a cloud-managed MQTT broker called HiveMQ Cloud, which is free to connect up to 100 MQTT clients, and HiveMQ Swarm, a tool for distributed simulation testing of IoT solutions.