StreamNative Cloud (Ursa)

StreamNative was founded by the creators of Apache Pulsar and is led by CEO and co-founder Sijie Guo. It offers a data streaming platform that keeps business state current for applications, analytics and AI agents, aiming to cut the cost of running Kafka and Pulsar at scale.

StreamNative Cloud supports both Kafka and Pulsar APIs and is available as Serverless, Dedicated, BYOC and Private Cloud. Its Ursa engine stores streams directly on object storage as Apache Iceberg or Delta Lake tables, removing separate stream-to-table pipelines and cross-zone replication. In April 2026 the company introduced the Lakestream architecture and Ursa For Kafka, a Kafka 4.2+ fork whose topics are queryable as lakehouse tables through Databricks Unity Catalog, Snowflake Horizon Catalog or AWS S3 Tables. Customers include Iterable, Blueshift and Unify.

• Dual protocol: Supports Kafka and Pulsar APIs on one platform.
• Ursa engine: Lakehouse-native stream storage on object storage without cross-zone replication.
• Lakestream tables: Topics stored as Iceberg or Delta Lake tables with Unity, Horizon and S3 Tables catalogs.
• Universal Connect and Linking: Connectors and cluster linking for migration and integration.
• Agent Engine: Event-driven agents with policy, RBAC and audit controls.
• Deployment choice: Serverless, Dedicated, BYOC and Private Cloud.

A Vietnamese e-commerce platform can stream orders and clickstream into Iceberg tables for same-day analytics without separate ETL jobs. A telecom or fintech running Pulsar or Kafka can reduce infrastructure cost by moving to object-storage-based streaming. A marketing technology firm can feed live customer events to AI agents.

The company cites up to 95% lower streaming cost by eliminating cross-zone replication, validated at 5 GB/s sustained throughput. Every topic is also a lakehouse table, so analytics teams query streaming data without building extra pipelines. Existing Kafka and Pulsar applications work without rewrites, and governance covers access scopes, audit and lineage.

Organizations are converging streaming and lakehouse storage on open table formats such as Apache Iceberg to cut duplicate pipelines and cloud network costs. AI agents that act on live business events further increase demand for fresh, governed data.

Founded by the creators of Apache Pulsar; CEO and co-founder Sijie Guo. The Ursa paper won the Best Industry Paper award at VLDB 2025. Named a Leader in the 2024 GigaOm Radar for Streaming Data Platforms and included in the Forrester Wave for Streaming Data Platforms, Q4 2025. Partners include Databricks, Snowflake, Ververica, Starburst and StarTree.