Databricks

A fast open-source analytics database. Built for high performance, it delivers exceptional query speed, making it ideal for processing large volumes of data.

Cloudera is a Santa Clara-based enterprise data lakehouse and hybrid data platform company founded in 2008; it IPO'd in 2017, merged with Hortonworks in 2019 and was taken private by KKR and CD&R for about $5.3B in 2021, and now focuses on private AI and data management across hybrid clouds.

Expanso, founded in 2023 in Seattle, USA, develops an open-source platform that enables enterprises to process data at the edge.

PingCAP, founded in 2015, develops TiDB, an open-source MySQL-compatible distributed SQL database supporting HTAP and native vector search, plus the fully managed TiDB Cloud, used as a data layer for enterprises and AI applications/agents. Customers include Pinterest, Square, Atlassian, Bolt and Kimi.ai. Its China operating entity is Beijing PingCAP Xingchen Technology Development Co., Ltd.

Neo4j is a graph database company founded in 2007 in Malmö, Sweden as Neo Technology and renamed Neo4j, Inc. in 2017; it is now headquartered in San Mateo, California, with engineering still in Malmö. Its core products are a native graph database using the Cypher query language and the managed cloud service AuraDB. More recently it has added GraphRAG capabilities that combine knowledge graphs with vector search to give LLMs and AI agents traceable, structured context. The company says it serves 80+ Fortune 100 companies and passed $200M ARR in November 2024.

Dremio, founded in 2015 and headquartered in Santa Clara, California, is an Iceberg-native open data lakehouse platform (creator of Apache Arrow) with a SQL query engine, an open catalog built on Apache Polaris and an AI semantic layer exposed to AI agents via MCP. Acquired by SAP in July 2026.