List of the Top 7 On-Prem MQTT Brokers in 2025

EMQX is an exceptionally scalable and dependable MQTT messaging platform crafted by EMQ, capable of handling a staggering 100 million simultaneous IoT device connections per cluster, all while ensuring incredibly high throughput and latencies measured in sub-milliseconds. With over 20,000 users globally across more than 50 nations, EMQX successfully connects in excess of 100 million IoT devices and has earned the trust of over 300 clients in essential IoT applications, featuring prominent names such as HPE, VMware, Verifone, SAIC Volkswagen, and Ericsson. Our versatile edge-to-cloud IoT data solutions cater to the diverse needs of various sectors undergoing digital transformation, including connected vehicles, industrial IoT, oil and gas, telecommunications, finance, smart energy, and smart cities. EMQX Enterprise stands out as the leading scalable MQTT messaging platform, offering 100 million concurrent MQTT connections, a message throughput of 1 million messages per second with under 1 millisecond latency, and business-critical reliability with an SLA of up to 99.99%. Additionally, it enables seamless integration of IoT data with more than 40 cloud services and enterprise systems. Meanwhile, EMQX Cloud serves as a fully managed MQTT service for IoT, allowing users to scale according to their needs and pay based on usage, alongside offering extensive IoT data integration options with over 40 choices. With operational capabilities across 19 regions on AWS, GCP, and Microsoft Azure, EMQX Cloud ensures 100% MQTT compliance for its users. The combination of these features positions EMQX as an unrivaled solution in the realm of IoT messaging platforms.

Redis Labs serves as the official home of Redis, showcasing its leading product, Redis Enterprise, which is recognized as the most advanced version of Redis. Offering much more than mere caching capabilities, Redis Enterprise is accessible for free in the cloud, delivering NoSQL solutions and utilizing the fastest in-memory database available. The platform is designed for scalability and enterprise-level resilience, enabling massive scaling along with user-friendly administration and operational efficiency. Notably, Redis in the Cloud has gained popularity among DevOps professionals due to its capabilities. Developers benefit from advanced data structures and a broad range of modules, empowering them to foster innovation and achieve quicker time-to-market. Chief Information Officers appreciate the robust security and reliable expert support that Redis provides, ensuring an impressive uptime of 99.999%. For scenarios involving active-active configurations, geodistribution, and conflict resolution with read/write operations across multiple regions on the same dataset, relational databases are recommended. Furthermore, Redis Enterprise facilitates various flexible deployment options, making it adaptable to different environments. The ecosystem also includes Redis JSON, Redis Java, and Python Redis, along with best practices for Redis on Kubernetes and GUI management, solidifying its versatility in modern application development.

Coreflux represents an innovative IoT platform designed to prioritize integration, scalability, and security. At its foundation lies the MQTT Broker, serving as the essential component that enables real-time communication and management of data across various devices, irrespective of their protocols or manufacturers. The platform also features Flux DSL, a unique domain-specific programming language that empowers users to design event-driven workflows and manage complex IoT scenarios effectively. Additionally, the Asset Management system (Flux Assets) oversees a diverse array of IoT assets, ensuring their optimal configuration and performance from sensors to databases. Coreflux's suite of integrated tools provides users with the ability to orchestrate devices, workflows, and automations with precision. Catering to a wide audience, Coreflux is versatile enough to support IoT enthusiasts, enterprises, and developers alike, capable of managing anything from a handful of devices to expansive networks comprising thousands. This adaptability makes Coreflux a compelling choice for anyone looking to streamline their IoT operations.

The Pro Edition of Eclipse Mosquitto serves as an advanced version of the leading MQTT broker, ensuring swift, stable, and dependable data transmission among IoT devices. Unlike its widely-used open-source counterpart, Pro Mosquitto enhances the user experience through features such as professional administration and monitoring for both MQTT brokers and clients, MQTT High Availability, access to MQTT and REST APIs, and improved security and support, making it exceptionally suited for commercial applications. One of the key advantages is its performance, which allows for minimal resource consumption while effortlessly managing up to a million simultaneous connections. Written in C, Pro Mosquitto's lightweight architecture ensures superior efficiency compared to its rivals, and it is capable of functioning on low-spec embedded devices, such as single-core 600MHz ARM processors with just 128MB of RAM. This reliability is further reinforced by its widespread acceptance within the global developer community, boasting over 500 million Docker pulls and a service level agreement (SLA) of up to 99.99%, which underscores its commitment to business continuity. Additionally, our dedicated professional services team is available to assist with any challenges, guaranteeing the successful deployment and maintenance of your projects while also offering tailored support to meet specific needs. With such a comprehensive range of features and services, Pro Mosquitto stands out as a robust solution for organizations looking to optimize their IoT communications.

Solace specializes in Event-Driven Architecture (EDA) and boasts two decades of expertise in delivering highly dependable, robust, and scalable data transfer solutions that utilize the publish & subscribe (pub/sub) model. Their technology facilitates the instantaneous data exchange that underpins many daily conveniences, such as prompt loyalty rewards from credit cards, weather updates on mobile devices, real-time tracking of aircraft on the ground and in flight, as well as timely inventory notifications for popular retail stores and grocery chains. Additionally, the technology developed by Solace is instrumental for numerous leading stock exchanges and betting platforms worldwide. Beyond their reliable technology, exceptional customer service is a significant factor that attracts clients to Solace and fosters long-lasting relationships. The combination of innovative solutions and dedicated support ensures that customers not only choose Solace but also continue to rely on their services over time.

HiveMQ stands out as the most trusted MQTT platform for enterprises, designed specifically to facilitate connections through MQTT, ensure dependable communication, and manage IoT data effectively. Its versatility allows for deployment in various environments, whether on-premise or in the cloud, granting developers the adaptability they require as their IoT projects expand. Known for its reliability even under challenging conditions, HiveMQ scales effortlessly and incorporates enterprise-level security features that cater to organizations at any phase of their digital transformation journey. Furthermore, this flexible platform enables smooth integration with top data streaming services, databases, and analytics tools, while also providing a customizable SDK to seamlessly integrate into any technological ecosystem. As IoT demands continue to evolve, HiveMQ remains a pivotal resource for businesses aiming to leverage cutting-edge technology.

Waterstream converts your Kafka-compatible system into a powerful MQTT broker, facilitating effortless connections for millions of clients without requiring any coding, integration pipelines, or extra storage solutions. It creates a bidirectional link that connects Kafka with MQTT clients, thus removing the difficulties associated with managing separate MQTT clusters and minimizing data redundancy. Scalability is a breeze with Waterstream, as its nodes function autonomously for the majority of tasks, making it simple to add more instances to support an expanding client base. The solution is built entirely on Kafka, taking full advantage of its inherent persistence capabilities, which guarantee high availability, exceptional throughput, and low latency for peak performance. Furthermore, this allows you to concentrate on developing your applications while Waterstream adeptly navigates the intricacies of data streaming. By streamlining the connection process, Waterstream empowers users to focus on innovation rather than infrastructure.