Acquisition
Jan 2026ClickHouse acquired Langfuse, an open-source LLM observability company, to enter LLM observability. The transaction was announced alongside the Series D financing; consideration was not disclosed.
SourceOpen-source column-oriented database management system.
Company research
Public company, workplace, funding, and market signals
Updated Aug 2, 2026
Overview
ClickHouse, Inc. is the company behind ClickHouse, an open-source, column-oriented analytical DBMS designed for fast real-time OLAP queries. The project began at Yandex in 2009, was open-sourced in 2016, and the Delaware corporation was formed in 2021. The company now also offers a fully managed cloud data platform spanning real-time analytics, data warehousing, observability, AI/ML workloads, and managed Postgres.
Primary product
ClickHouse Cloud and the open-source ClickHouse analytical database.
Founded
2021
Headquarters
San Francisco Bay Area / Palo Alto, California, United States
Team size
Approximately 400–500 employees; third-party estimates range higher, including 644 as of Q1 2026.
Work style
Remote
Industry
Software development
Sub-industry
Open Positions
166 jobs at ClickHouse
Director of Product, ClickHouse Cloud
RemoteProduct ManagementUnited States (remote)4d ago
Remote