DataStax

DataStax, Inc.

Company type	Private
Industry	Data management, Cloud computing, Artificial intelligence
Predecessor	Riptano
Founded	April 2010 (2010-04)
Founder	Jonathan Ellis, Matt Pfeil
Fate	Acquired by IBM
Headquarters	Santa Clara , United States
Area served	Worldwide (over 50 countries)
Key people	Chet Kapoor (CEO), Davor Bonaci (CTO and EVP)
Products	Astra DB, DataStax Enterprise (DSE), Astra Streaming, K8ssandra, Stargate, Luna ML, LangStream, RAGStack
Owner	IBM
Parent	IBM
Website	www.datastax.com

DataStax, Inc. specializes in real-time data solutions for artificial intelligence and is based in Santa Clara, California. Its premier offering, Astra DB, is a cloud-based database-as-a-service built upon Apache Cassandra. Additionally, DataStax provides DataStax Enterprise (DSE), an on-premises database solution utilizing Apache Cassandra, alongside Astra Streaming, a cloud messaging and event streaming service powered by Apache Pulsar. By June 2022, DataStax supported roughly 800 clients spanning over 50 countries.

History

Established in April 2010 by Jonathan Ellis and Matt Pfeil, DataStax emerged from the open source NoSQL database Apache Cassandra, originally created at Facebook to handle extensive data distribution across servers and released as an Apache project in 2008. Ellis and Pfeil departed from Rackspace to found Riptano in Austin, Texas; the company later rebranded as DataStax and moved its headquarters to Santa Clara.

DataStax engineered its proprietary enterprise-grade Cassandra variant, DataStax Enterprise (DSE), aimed at large-scale implementations. In 2019, Chet Kapoor took on the role of CEO, bringing strategic expertise from his prior executive positions.

In May 2020, DataStax unveiled Astra DB to provide Cassandra as a cloud-native DBaaS. Later that year, it launched K8ssandra, an open source Cassandra distribution designed for Kubernetes environments, along with Stargate, an open source API gateway for data access.

After acquiring the streaming company Kesque in January 2021, DataStax introduced Luna Streaming and subsequently redeveloped the technology into Astra Streaming, which became generally available in June 2022. Astra Streaming supports multiple messaging frameworks such as Apache Pulsar, Kafka, RabbitMQ, and Java Message Service, integrating seamlessly with Astra DB to deliver a unified data platform.

Starting in 2023, DataStax incorporated artificial intelligence and machine learning technologies into its product lineup. The acquisition of Kaskada in January 2023 enhanced its AI-driven feature engineering capabilities; Kaskada’s technology was open sourced and merged into Luna ML. Former Kaskada CEO Davor Bonaci joined DataStax as CTO and EVP.

This period also saw strategic collaborations: a May 2023 partnership with ThirdAI aimed at boosting generative AI functionalities for developers using DSE and Astra DB; followed by a July 2023 alliance with Google to enable semantic search capabilities within Astra DB tailored for AI workloads. In September 2023, DataStax launched LangStream—an open source initiative supporting vector databases and event-driven systems integrated with generative AI.

In November 2023, DataStax debuted RAGStack, a commercial retrieval-augmented generation (RAG) platform built on LangChain technology combined with Astra DB vector search.

On February 25, 2025, IBM announced its intention to acquire DataStax to enhance its watsonx platform and address enterprise generative AI data requirements. The acquisition was finalized on May 28, 2025.

Astra DB

Astra DB is accessible across leading cloud providers such as Microsoft Azure, Amazon Web Services, and Google Cloud Platform. In February 2021, DataStax introduced a serverless edition of Astra DB that offers developers a pay-per-use pricing model.

By March 2022, Astra DB incorporated change data capture (CDC) features powered by Apache Pulsar to unify the management of both operational and streaming datasets. Furthermore, DataStax spearheads the open-source Starlight initiative, which provides a compatibility layer supporting multiple protocols atop Apache Pulsar.

On February 8, 2023, DataStax expanded Astra DB’s capabilities with Astra Block—a blockchain-based cloud service leveraging the Ethereum network aimed at facilitating Web3 application development. Astra Block allows developers to stream enriched blockchain data to scale Web3 experiences effectively.

Astra DB also integrates with the open source LangChain framework to support the development of generative AI applications.

DSE

DataStax Enterprise (DSE), launched initially in October 2011, was the first commercial version of the Cassandra database engineered to support both real-time application responsiveness and intensive analytics within a unified platform. Over the years, DSE evolved to incorporate sophisticated security measures, graph database frameworks, operational analytics capabilities, and advanced search functionalities.

In April 2016, DataStax introduced graph data model support through DataStax Enterprise Graph. The DSE 5.1 update released in March 2017 enhanced search features, security management, graph administration, and operational analytics, while realigning its strategic emphasis toward customer experience applications and advisory on industry best practices.

Targeting hybrid cloud deployments, DSE 6 arrived in April 2018 with doubled throughput and latency improvements for distributed cloud databases operating on public cloud infrastructures or on-premises environments. Later that year, DSE 6.7 was released in December 2018, bringing critical enterprise enhancements such as upgraded analytics, geospatial search capabilities, fortified cloud data security, performance monitoring tools, and new developer resources including the Apache Kafka Connector and certified Docker images.

The April 2020 launch of DSE 6.8 delivered performance optimizations for bare-metal systems alongside Kubernetes operator integration to better manage Cassandra workloads.

Most recently, DSE 7.0 debuted in August 2023 with advancements supporting cloud-native operations and generative AI functionalities, complemented by the introduction of vector search technology.

Funding and IPO

DataStax secured $106 million during a Series E financing round in September 2014, pushing total funding to $190 million. On June 15, 2022, the company raised an additional $115 million at a valuation of $1.6 billion.

Although there were indications in 2020 that DataStax was preparing for an initial public offering possibly slated for 2021, CEO Chet Kapoor clarified in June 2022 that the firm would not hasten its decision to go public.

See also

• Apache Cassandra
• Wide-column store