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Top 5 Event Stream Processing Software Companies (August 2026)

As of August 2026, Latka tracks 5 event stream processing software companies. They have combined revenues of $118.8M and employ 730 people. They have raised $13.2M and serve 1K customers combined.

Every company below sells event stream processing software to other businesses and is ranked by its most recent annual revenue. Revenue, funding, headcount and customer figures come from CEO interviews on the Latka podcast, public company filings, and Latka estimates where a company has not disclosed a number.

What Event Stream Processing Software Companies do

Event Stream Processing Software is designed to manage and analyze continuous streams of data in real time. This category of software enables organizations to capture, process, and react to events as they occur, allowing for immediate decision-making and action. Primary use cases include monitoring system performance, real-time analytics, and automating responses to operational changes in various industries such as finance, e-commerce, and telecommunications. Typical features of event stream processing software include event ingestion from multiple sources, data enrichment, real-time analytics, and data visualization capabilities. Users often include IT operations teams, data engineers, and business analysts, all needing to handle and derive insights from streaming data effectively. By optimizing data processing workflows, these tools support organizations in becoming more responsive and data-driven in their decision-making processes.

Companies
5
Revenue
$118.8M
Funding
$13.2M
Employees
730

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Top Event Stream Processing Software Companies by revenue

Showing 5 of 5 companies ranked by annual revenue.

1Solace logo
Solace

Ottawa, Ontario, Canada

Solace Corporation is a technology company based in Ontario, Canada. Solace provides a messaging platform that helps businesses to distribute real-time data and information across their IT infrastructure. Their platform offers features such as event streaming, message routing, and API management, enabling businesses to deliver data in real-time to various applications and devices. Solace's platform is used by companies in various industries such as financial services, telecommunications, and transportation. The company was founded in 2001 and has since become a leading provider of event-driven architectures and messaging solutions.

Revenue
$100M
Year founded
2001
Funding
$7M
Team size
629
2Ververica logo
Ververica

Berlin, Berlin, Germany

Ververica, the original creators of Apache Flink®, empowers businesses with high-performance data streaming and processing solutions. Streamlining operations, developer efficiency, and enabling customers to solve real-time use cases reliably and securely. Ververica’s Unified Streaming Data Platform, powered by its cloud native VERA engine, revolutionizes Apache Flink®, making it easy for organizations to harness data insights at scale. With Ververica, customers can meet any business SLA, leveraging advanced data streaming and processing capabilities in real-time or on the lakehouse. Ververica enables businesses to connect, process, govern, and analyze data, across infinite use cases, with flexible deployment options, including public cloud, private cloud, or on-premise environments. Discover more at ververica.com.

Revenue
$7.9M
Year founded
2014
Funding
$6.2M
Team size
72
3Arroyo logo
Arroyo

Berkeley, California, United States

Cloud-native stream processing

Revenue
$5M
Year founded
2022
Team size
2
43cket logo
3cket

Lisbon, Portugal

3cket is reshaping events with cutting-edge technology. Our technology empowers event organizers, agencies and brands to create unforgettable experiences, delivering innovative ticketing and payment solutions, management tools and analytics for any event.

Revenue
$5M
Customers
1K
Year founded
2019
Team size
19
5Hookdeck logo
Hookdeck

Montreal, Quebec, Canada

Hookdeck is a fast and reliable event gateway for receiving, processing, and delivering asynchronous messages. It centralizes and streamlines communication between services – external providers (e.g. Shopify), internal endpoints (e.g. APIs), and any combination thereof. Configure Hookdeck platform resources and features such as event routing, filters and transformations. And let Hookdeck automatically retry failed events for painless error recovery. Our developer tooling enables teams to build, deploy, operate, and observe their event-driven applications with confidence.

Revenue
$880K
Team size
8

Frequently asked questions about Event Stream Processing Software Companies

How many event stream processing software companies are there?

Latka tracks 5 event stream processing software companies with reported revenue. Together they generate $118.8M in annual revenue and employ 730 people.

Which event stream processing software company is the largest?

Solace is the largest, with $100M in annual revenue, founded in 2001.

How much revenue does a typical event stream processing software company make?

The average event stream processing software company in this list makes $23.8M a year, across 5 companies with reported revenue. They serve 1K customers combined.

Who are the leading Event Stream Processing software vendors?

Ranked by annual revenue, the leaders are Solace, Ververica, Arroyo, 3cket and Hookdeck.

How much funding have event stream processing software companies raised?

The 5 event stream processing software companies tracked here have raised $13.2M in disclosed funding between them.

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All IT Infrastructure Software SaaS categoriesEvery category we track inside IT Infrastructure Software, each ranked by revenue.Browse every SaaS industryThe full A-Z of SaaS categories Latka tracks, from Event Stream Processing to everything else.

Inclusion Criteria

- The software must enable real-time processing of continuous data streams. - It should support multiple data sources including applications, IoT devices, and databases. - Must provide analytics capabilities to derive actionable insights from streaming data. - Should include features for event transformation and enrichment during processing. - Not just a data storage solution; must actively process and act on the incoming data streams.