Best Event Stream Processing Software - Page 4

How Many Event Stream Processing Software Products Does G2 Track?

Total Products under this Category: 74

Category Stats (Nov 2026)

  • Average Rating: 4.35/5 (↓0.02 vs Oct 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Apache Kafka (+0.09%) - Among all products in this category, Apache Kafka recorded the largest rating increase compared to last month

Last updated: November 01, 2026

How Does G2 Rank Event Stream Processing Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
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G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Event Stream Processing Software

G2 Grid® for Event Stream Processing Software plotting products by satisfaction and market presence

Highlighted products: Confluent, Aiven for Apache Kafka, Redpanda Data Platform, Amazon Managed Streaming for Apache Kafka (Amazon MSK), Amazon Kinesis Data Streams, Apache Kafka, Google Cloud Dataflow, and IBM Event Streams.

Underlying data: [Grid® JSON](https://www.g2.com/categories/event-stream-processing/grids.json?focus%5B%5D=confluent&focus%5B%5D=aiven-for-apache-kafka&focus%5B%5D=redpanda-data-platform&focus%5B%5D=amazon-managed-streaming-for-apache-kafka-amazon-msk&focus%5B%5D=aws-amazon-kinesis-data-streams&focus%5B%5D=apache-kafka&focus%5B%5D=google-cloud-dataflow&focus%5B%5D=ibm-event-streams)

TIBCO ComputeDB

TIBCO ComputeDB™ is an in-memory optimized analytics database that integrates Apache Spark™ and Apache Geode™ to deliver high throughput, low latency, and high concurrency for unified analytic workloads. It enables organizations to perform interactive and streaming analytics alongside artificial intelligence within a single, easy-to-manage distributed cluster. By combining transactional and analytical processing, TIBCO ComputeDB simplifies system architecture and reduces the overall cost of ownership while enhancing performance. Key Features and Functionality: - Apache Spark Compatibility: Fully compatible with Apache Spark and Spark SQL tools, allowing seamless integration with existing Spark-based applications. - In-Memory Row and Column Stores: Supports both row-oriented and columnar data storage, providing flexibility for various use cases and optimizing performance. - SQL Standard Compliance: Extends Apache Spark SQL with additional DML, DDL, indexing, and constraint capabilities, ensuring robust SQL support. - Streaming Processing Extensions: Offers SQL-based extensions for stream processing, enabling declarative specification of streams without requiring deep knowledge of Apache Spark APIs. - Data Mutability and Transactions: Allows SQL-based insert, update, and delete operations, facilitating data mutability and transactional integrity within Apache Spark environments. - Optimizations: Features indexing and data colocation strategies to improve query performance and data locality, reducing the need for data shuffling. - High Availability and Fault Tolerance: Provides instant data replication and integrates with distributed systems to detect and handle failures, ensuring continuous high availability. - Durability and Recovery: Supports disk persistence for tables, with utilities for backup, restore, and import/export, ensuring data durability and facilitating recovery processes. Primary Value and Problem Solved: TIBCO ComputeDB addresses the challenge of real-time data analysis by combining streaming analytics, in-memory data management, and transactional capabilities into a unified platform. This integration eliminates the need for separate systems for transactional and analytical processing, reducing complexity and cost. Organizations benefit from accelerated analytic computations, handling of batch to streaming data ingestion with low latency, and the ability to perform interactive analytics on large datasets. By leveraging TIBCO ComputeDB, businesses can achieve faster insights, improved performance, and increased agility in their data-driven decision-making processes.

Average Rating: 4.0/5.0

Total Reviews: 2

How Do G2 Users Rate TIBCO ComputeDB?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 8.9/10)
  • Data Sources: 10.0/10 (Category avg: 8.6/10)
  • Data Processing: 10.0/10 (Category avg: 8.8/10)
  • Real-Time Processing: 8.3/10 (Category avg: 9.1/10)

Who Is the Company Behind TIBCO ComputeDB?

  • Seller: ON EBX
  • HQ Location: Fort Lauderdale, FL
  • Twitter: @ON_EBX
    124 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    9,470 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Large

What Are Recent G2 Reviews of TIBCO ComputeDB?

Ververica Platform

Ververica Platform is an integrated platform for stateful stream processing and streaming analytics with Open Source Apache Flink. It enables organizations of any size to derive immediate insight from their data and serve internal and external stakeholders. Powered by Apache Flink, Ververica Platform provides high throughput, low latency data processing, powerful abstractions and the operational flexibility trusted by some of the world’s largest and most successful data-driven enterprises such as Alibaba, Netflix and Uber. Ververica Platform brings the accumulated knowledge of our experience working with some of these large and innovative, data-driven companies into an easily-accessible, cost-effective and secure enterprise-ready platform.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind Ververica Platform?

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of Ververica Platform?

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Axoniq Insights

Axoniq Insights is an intelligence and analytics layer that turns your Axon Server event store into an instant, queryable SQL database without manual projections or schema maintenance. Core Features • EventLake Architecture: Connects to Axon Server event streams and writes incoming events into Parquet files powered by DuckDB (a columnar analytical database). • Multiple Query Interfaces: Access data through natural language (AI chat), standard SQL, BI tools, REST APIs, or the PostgreSQL wire protocol (port 5432). • AI & Agentic Traceability: Traces AI agent actions and decisions directly back to immutable event store records for auditing and compliance. • Availability: Included natively with Axon Server Team Tier and above.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate Axoniq Insights?

  • Real-Time Processing: 10.0/10 (Category avg: 9.1/10)

Who Is the Company Behind Axoniq Insights?

  • Seller: Axoniq
  • Year Founded: 2017
  • HQ Location: Austin , US
  • LinkedIn® Page: www.linkedin.com
    45 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Medium

What Do G2 Reviewers Say About Axoniq Insights?

AI-generated summary from verified user reviews

Pros
  • Users find AxonIQ Console to be very user-friendly, making it easy to teach others how to use it.
  • Users appreciate the easy learning aspect of AxonIQ Console, finding it user-friendly and straightforward to teach others.
  • Users find the intuitive use of AxonIQ Console makes it easy to teach and navigate for others.
  • Users benefit from the user-friendly organization of AxonIQ Console, making it easy to teach others.
  • Users appreciate the user-friendly interface of AxonIQ Console, making it easy to teach others.
Cons
  • Users experience slow updates in AxonIQ Console, which hampers sharing and collaboration with others.
  • Users experience slow performance when updating and sharing in AxonIQ Console, leading to frustration during use.
  • Users experience slow updates with AxonIQ Console, which can hinder collaboration and efficiency when sharing information.
  • Users experience slow updates with AxonIQ Console, which can hinder timely communication with others.

What Are Recent G2 Reviews of Axoniq Insights?

Condense

Condense is an AI-first streaming platform that unifies how real-time data pipelines are built and managed. Running as a BYOC (Bring Your Own Cloud) deployment, Condense continuously manages and scales deployments while optimizing costs, creating a closed intelligent loop where pipelines are built faster, run autonomously, and continuously adapt to live data.

Who Is the Company Behind Condense?

  • Seller: Zeliot
  • Year Founded: 2018
  • HQ Location: Bengaluru, IN
  • Twitter: @RealZeliot
    70 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    98 employees on LinkedIn®

Conduktor for Apache Kafka

Conduktor is a Streaming Data Hub for enterprises to operate, secure, and scale Apache Kafka operations. It unifies visibility, governance, and security across their various data infrastructure so teams can build, share, and trust real-time data at scale.

Who Is the Company Behind Conduktor for Apache Kafka?

  • Seller: Conduktor
  • Year Founded: 2019
  • HQ Location: New York, US
  • LinkedIn® Page: www.linkedin.com
    100 employees on LinkedIn®

ContextStream

ContextStream is persistent memory for Cursor and Claude Code. It provides a code-aware memory layer delivered via MCP (Model Context Protocol), so AI coding assistants keep the context they have already learned about your codebase instead of starting from scratch in every session. ContextStream turns what your project learned into reusable project memory for future AI coding sessions, shared across people and AI agents on the team. Learn more at https://contextstream.io

Who Is the Company Behind ContextStream?

Eclipse Streamsheets

Streamsheets enable users to build simple and complex apps and services that process, visualize, connect, and control data streams without writing a line of code. Typical Streamsheets applications include the visualization, analysis, simulation, and control of IoT devices via MQTT or REST as well as the real-time processing and analysis of data from event streaming platforms such as Apache Kafka. Streamsheets run in any cloud, on-premises as well as in hybrid infrastructures and not only fully support but also communicate between all common IoT protocols, such as OPC UA, MQTT, REST, and Kafka.

Average Rating: 4.0/5.0

Total Reviews: 1

Who Is the Company Behind Eclipse Streamsheets?

  • Seller: Cedalo AG
  • Year Founded: 2017
  • HQ Location: Freiburg, Germany
  • Twitter: @cedalo_com
    209 Twitter followers
  • LinkedIn® Page: de.linkedin.com
    13 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of Eclipse Streamsheets?

Fabrix.ai

Data-centric AIOps Platform for Hybrid Deployments Powered by Robotic Data Automation Fabric (RDAF) Enabling the Autonomous Enterprise! - CloudFabrix was founded on a deep desire to enable Autonomous Enterprises. As we interviewed several big and small enterprises, one thing became very apparent. As Digital businesses were becoming more complex and abstract, it was impossible for traditional data management disciplines and frameworks to meet these requirements. As we dug deeper, 3 building blocks emerged as key pillars for embarking on a autonomous enterprise journey – the enterprise needed to adopt 1) Data-First 2) AI-First and 3) Automate Everywhere strategy. CloudFabrix AIOps platform provides the following services. 1) Alert Noise Reduction 2) Incident Management 3) Predictive Analytics & Anomaly Detection 4) FinOps/Asset Intelligence & Analytics 5) Log Intelligence. CloudFabrix Platform powered by RDAF has six differentiating pillars. 1) Data fabric for data integration & automation 2) Low Code/No Code Observability Pipelines to aggregate, transform, enrich correlate and route 3) Continuous Learning for explainable AI/ML models & transformers 4) AIOps as a service for multi-tenant, distributed hybrid consumption 5) Observability Dashboards for full stack observability insights 6) Full Stack Mappings for dependency and impact data model and maps CloudFabrix empowers IT leaders and operations personnel with actionable intelligence to make faster and better decisions. CloudFabrix is headquartered in Pleasanton, CA with branch offices in India and the United Kingdom.

Average Rating: 4.8/5.0

Total Reviews: 10

How Do G2 Users Rate Fabrix.ai?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind Fabrix.ai?

  • Seller: Fabrix.ai
  • Year Founded: 2015
  • HQ Location: Pleasanton, California
  • Twitter: @CloudFabrix
    4 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    125 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software
  • Company Size: 50% Medium, 30% Small

What Are Recent G2 Reviews of Fabrix.ai?

What Are G2 Users Discussing About Fabrix.ai?

Heron

A realtime, distributed, fault-tolerant stream processing engine from Twitter

Who Is the Company Behind Heron?

  • Seller: Twitter
  • Year Founded: 2006
  • HQ Location: San Francisco, CA
  • LinkedIn® Page: www.linkedin.com
    959 employees on LinkedIn®
  • Ownership: NYSE: TWTR
  • Total Revenue (USD mm): $3,716

Leo Platform

Leo enables teams to innovate faster by providing visibility and control for data streams.

Who Is the Company Behind Leo Platform?

Macrometa

Macrometa is a hyper-distributed cloud platform featuring a Global Data Network (GDN) and PhotonIQ, an AI-powered Edge Delivery Network. With over 175 points of presence (PoPs) worldwide, Macrometa empowers enterprises to build real-time apps and APIs that store, process, and serve data within milliseconds to users globally. PhotonIQ: AI-Driven Edge Services PhotonIQ, Macrometa's suite of edge services, leverages AI and machine learning to deliver faster, more efficient, and secure digital experiences across various sectors including eCommerce, Gaming, and Financial Services. Key PhotonIQ services include: Performance Proxy (P3): Improves Core Web Vitals and optimizes web assets Dynamic Prerendering: Enhances site speed and SEO Virtual Waiting Rooms: Manages high-traffic scenarios Digital Fingerprinting: Enables privacy-preserving user tracking Unparalleled Performance Macrometa's platform ensures global P90 roundtrip response times of under 50ms, with the ability to serve results in under 50ms globally. This ultra-fast performance can significantly boost conversions, with increases of up to 72% reported for app performance improvements. Cost-Efficient and Developer-Friendly Macrometa's efficient architecture typically reduces cloud spend by 50% or more compared to traditional providers. The platform accelerates development cycles, allowing enterprises to implement PhotonIQ's AI at the edge services in 60 days or less. Developers can leverage Macrometa's API in any programming language, facilitating rapid product development and feature deployment without requiring expertise in distributed systems. By combining cutting-edge technology with ease of use, Macrometa enables businesses to deliver exceptional user experiences, drive organic traffic, and achieve substantial improvements in web performance and security.

Who Is the Company Behind Macrometa?

  • Seller: Macrometa
  • Year Founded: 2017
  • HQ Location: Palo Alto, US
  • Twitter: @macrometa
    397 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    54 employees on LinkedIn®

Meroxa

Meroxa is a Stream Processing Application Platform as a Service (DAPaaS). We allow software developers to build, test, and deploy data streaming applications in their preferred programming language.

Who Is the Company Behind Meroxa?

  • Seller: Meroxa
  • Year Founded: 2019
  • HQ Location: San Francisco, US
  • LinkedIn® Page: www.linkedin.com
    15 employees on LinkedIn®

Nuclio

Who Is the Company Behind Nuclio?

  • Seller: Iguazio
  • Year Founded: 2014
  • HQ Location: Herzliya, IL
  • Twitter: @iguazio
    929 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    74 employees on LinkedIn®
Bijou Barry
BB
Researched and written by Bijou Barry
Updated October 3, 2024