List of the Top 15 Event Brokers in 2025

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.

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.

A managed service enables seamless two-way communication between IoT devices and Azure, providing secure and reliable connections for your Internet of Things (IoT) applications. Serving as a cloud-based backend, Azure IoT Hub can effortlessly connect virtually any device. To enhance your solution, you can integrate from the cloud to the edge, employing per-device authentication, built-in management features, and scalable provisioning capabilities. By utilizing telemetry data from devices to the cloud, you can effectively monitor device statuses and create message routes to various Azure services without requiring coding expertise. Furthermore, cloud-to-device messaging ensures that commands and notifications are transmitted reliably to your connected devices, with delivery tracking made possible through acknowledgment receipts. In cases where connectivity is disrupted, the system automatically retransmits messages, maintaining communication flow. Our goal with Azure IoT Central is to elevate your projects beyond basic proof of concept; we support the creation of innovative, industry-leading solutions through a fully managed IoT application platform that accelerates progress. This holistic strategy empowers organizations to unlock the full potential of IoT technology, driving transformative changes in their operational processes. With this level of support, businesses can confidently explore new avenues for efficiency and growth in their respective industries.

Ably stands out as the leading platform for realtime experiences. With more WebSocket connections than any competing pub/sub service, we facilitate connections for over a billion devices each month. Companies rely on us for their essential applications, including chat, notifications, and broadcasts, ensuring that these services run reliably, securely, and at an impressive scale. Our commitment to excellence makes us the preferred choice for businesses seeking to enhance their realtime capabilities.

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.

StreamNative revolutionizes the streaming infrastructure landscape by merging Kafka, MQ, and multiple other protocols into a unified platform, providing exceptional flexibility and efficiency that aligns with current data processing needs. This comprehensive solution addresses the diverse requirements of streaming and messaging found within microservices architectures. By offering an integrated and intelligent strategy for both messaging and streaming, StreamNative empowers organizations with the capabilities to tackle the complexities and scalability challenges posed by today’s intricate data ecosystems. Additionally, the unique architecture of Apache Pulsar distinguishes between the message serving and storage components, resulting in a resilient cloud-native data-streaming platform. This design is both scalable and elastic, permitting rapid adaptations to changes in event traffic and shifting business demands, while also scaling to manage millions of topics, thereby ensuring that computation and storage functions remain decoupled for enhanced performance. Ultimately, this pioneering structure positions StreamNative at the forefront of meeting the diverse needs of modern data streaming, while also paving the way for future advancements in the field. Such adaptability and innovation are crucial for organizations aiming to thrive in an era where data management is more critical than ever.

Lightstreamer serves as a highly specialized event broker tailored for the internet, ensuring a seamless and rapid exchange of data across various online platforms. Unlike traditional brokers, it skillfully addresses the complexities of proxies, firewalls, network disruptions, congestion, and the unpredictable nature of web connectivity. Its cutting-edge streaming technology guarantees the continuous and prompt delivery of real-time data, consistently identifying efficient and reliable routes for your information. Lightstreamer's innovative capabilities are not only well-established but also continuously evolve, affirming its status as a leader in technological advancement. With a rich history and vast practical expertise, it promises safe and effective data transmission. Users can rely on Lightstreamer for unparalleled reliability in any scenario, solidifying its role as an essential asset for real-time communication requirements. In the dynamic realm of digital transformation, Lightstreamer emerges as a dependable ally for facilitating seamless data delivery while adapting to emerging trends. This adaptability positions Lightstreamer as a forward-thinking solution in a fast-paced environment.

Google Cloud’s Managed Service for Apache Kafka provides a robust and scalable platform that simplifies the setup, management, and maintenance of Apache Kafka clusters. With its automation of key operational tasks such as provisioning, scaling, and patching, developers can focus on building applications instead of dealing with infrastructure challenges. The service enhances reliability and availability by utilizing data replication across multiple zones, thereby reducing the likelihood of outages. Furthermore, it seamlessly integrates with other Google Cloud services, facilitating the development of intricate data processing workflows. Strong security protocols are in place, including encryption for both stored and in-transit data, alongside identity and access management and network isolation to safeguard sensitive information. Users have the flexibility to select between public and private networking configurations, accommodating a range of connectivity needs tailored to various business requirements. This adaptability ensures that organizations can efficiently align the service with their unique operational objectives while maintaining high performance and security standards.

IBM® Messages for RabbitMQ on IBM Cloud® functions as a flexible messaging broker that supports multiple messaging protocols, allowing users to efficiently route, monitor, and queue messages with customized persistence levels, delivery setups, and confirmation of publishing. By leveraging infrastructure-as-code tools such as IBM Cloud Schematics with Terraform and Red Hat® Ansible®, users can achieve international scalability without facing extra charges. Furthermore, IBM® Key Protect empowers customers to manage their own encryption keys, significantly boosting security. Each deployment is equipped with features like private networking, in-database auditing, and numerous other capabilities. The Messages for RabbitMQ service enables users to scale both disk space and RAM independently to cater to specific requirements, facilitating effortless expansion with just an API request. It is entirely compatible with RabbitMQ APIs, data formats, and client applications, serving as an optimal drop-in substitute for current RabbitMQ configurations. The standard installation consists of three data members tailored for maximum high availability, while deployments are thoughtfully spread across various availability zones to improve both reliability and performance. This all-encompassing solution guarantees that businesses can adeptly handle their messaging requirements while ensuring both flexibility and security, making it a vital asset in today's digital landscape.

IBM® MQ on Cloud stands as the ultimate solution for enterprise messaging, guaranteeing secure and reliable communication both in-house and across diverse cloud settings. By adopting IBM MQ on Cloud as a managed service, organizations can take advantage of IBM's oversight in handling upgrades, patches, and various operational responsibilities, freeing up teams to focus on seamlessly integrating it with their applications. For example, if a business runs a cloud-based mobile application to facilitate e-commerce transactions, IBM MQ on Cloud can facilitate the connection between the on-premises inventory management system and the customer-facing app, providing users with real-time updates on product availability. Although the main IT infrastructure is based in San Francisco, package processing occurs in a facility in London, and IBM MQ on Cloud guarantees that messages are reliably exchanged between these two sites. It allows the London office to securely encrypt and transmit data related to each package that needs to be tracked while enabling the San Francisco office to receive and handle that information with heightened security protocols. Both locations can trust that the integrity of the data exchanged is preserved, ensuring it remains accurate and accessible. This robust communication framework is vital for sustaining operational efficiency and fostering trust across international business operations, which ultimately enhances the overall performance of the organization.

Captivating applications not only engage users but also inspire developers to push the boundaries of innovation. In order to address the increasing demands of today's digital ecosystem, exploring the DataStax Astra Streaming service platform may prove beneficial. This platform, designed for cloud-native messaging and event streaming, is grounded in the powerful technology of Apache Pulsar. Developers can utilize Astra Streaming to build dynamic streaming applications that take advantage of a multi-cloud, elastically scalable framework. With the sophisticated features offered by Apache Pulsar, this platform provides an all-encompassing solution that integrates streaming, queuing, pub/sub mechanisms, and stream processing capabilities. Astra Streaming is particularly advantageous for users of Astra DB, as it facilitates the effortless creation of real-time data pipelines that connect directly to their Astra DB instances. Furthermore, the platform's adaptable nature allows for deployment across leading public cloud services such as AWS, GCP, and Azure, thus mitigating the risk of vendor lock-in. Ultimately, Astra Streaming empowers developers to fully leverage their data within real-time environments, fostering greater innovation and efficiency in application development. By employing this versatile platform, teams can unlock new opportunities for growth and creativity in their projects.

IBM Event Automation is a highly adaptable, event-driven platform designed to help users discover opportunities, take prompt actions, automate their decision-making, and boost their revenue potential. Leveraging the capabilities of Apache Flink, it enables organizations to respond rapidly in real-time, using artificial intelligence to predict key business trends. This innovative solution supports the development of scalable applications that can easily adjust to evolving business needs and handle increasing workloads without difficulty. Additionally, it features self-service functionalities along with approval workflows, field redaction, and schema filtering, all managed through a Kafka-native event gateway under a policy administration framework. By implementing policy administration for self-service access, IBM Event Automation accelerates event management and simplifies the establishment of controls for approval workflows and data privacy measures. The diverse applications of this technology encompass transaction data analysis, inventory optimization, detection of fraudulent activities, enhancement of customer insights, and facilitation of predictive maintenance. Through this holistic strategy, businesses are equipped to navigate intricate environments with both agility and accuracy, ensuring they remain competitive in the market. Furthermore, the platform's ability to integrate with existing systems makes it a valuable asset for organizations aiming to improve operational efficiency and drive innovation.

Unlock unlimited data retention for Apache Kafka® through Confluent, enabling you to transform your infrastructure from being limited by outdated technologies. While traditional systems often necessitate a trade-off between real-time processing and scalability, event streaming empowers you to leverage both benefits at once, fostering an environment ripe for innovation and success. Have you thought about how your rideshare app seamlessly analyzes extensive datasets from multiple sources to deliver real-time estimated arrival times? Or how your credit card company tracks millions of global transactions in real-time, quickly notifying users of possible fraud? These advanced capabilities are made possible through event streaming. Embrace microservices and support your hybrid strategy with a dependable connection to the cloud. By breaking down silos, you can ensure compliance and experience uninterrupted, real-time event delivery. The opportunities are truly boundless, and the potential for expansion has never been more significant, making it an exciting time to invest in this transformative technology.

Eventarc from Google Cloud provides a comprehensive managed platform that allows developers to create event-driven architectures by routing events from diverse sources to specified endpoints. It effectively captures system-generated events and transmits them to selected destinations, fostering the creation of loosely coupled services that react appropriately to changes in state. With the capability to handle events from various Google Cloud services, custom applications, and external SaaS platforms, Eventarc presents substantial flexibility for developing event-driven solutions. Developers can configure triggers to route events to different endpoints, such as Cloud Run services, which significantly enhances the responsiveness and scalability of application designs. Additionally, Eventarc ensures secure event delivery by utilizing Identity and Access Management (IAM), which provides detailed access control over event ingestion and processing. This strong security mechanism guarantees that only authorized individuals are permitted to manage events, thereby upholding the integrity and confidentiality of the data involved. Ultimately, Eventarc streamlines the development of sophisticated event-driven applications while prioritizing security and efficient resource management.

Azure Web PubSub is a fully managed solution tailored for developers aiming to build interactive web applications that leverage WebSockets and the publish-subscribe architecture. This platform supports both native and serverless WebSocket connections, promoting scalable and two-way communication while eliminating the need for infrastructure management. It is ideal for a wide array of applications, such as chat services, live event streaming, and IoT monitoring dashboards. By facilitating real-time messaging through its publish-subscribe functionality, it can accommodate a substantial number of simultaneous users and extensive client connections while maintaining high availability. Furthermore, the service supports a variety of client SDKs and programming languages, simplifying the integration process into existing systems. On top of that, it employs strong security measures, including Azure Active Directory integration and private endpoints, ensuring data protection and user access control in line with enterprise security requirements. As a result, developers can concentrate on crafting innovative applications without the complications associated with managing underlying infrastructure. This allows for increased productivity and creativity in application development.