What is ClickHouse?
Open-source columnar OLAP database and cloud service for real-time analytics.
- Category
- Real-time analytics database
- Headquarters
- San Francisco Bay Area / Amsterdam
- Founded
- 2021 as company; open source released 2016
- Employees
- ~500+
- Total funding
- >$650M
- Valuation or Status
- ~$6.35B private valuation (2025 Series C)
What is ClickHouse?
ClickHouse is a real-time analytics database company. Open-source columnar OLAP database and cloud service for real-time analytics.
ClickHouse sells into teams that need clickhouse cloud, open-source clickhouse, bring your own cloud and related workflows. Revenue not publicly disclosed; growth is tied to ClickHouse Cloud adoption and enterprise support for the open-source database. The company cites major technology, fintech, observability and AI customers using ClickHouse for real-time analytics.
The company is positioned around a focused operating wedge rather than a generic software suite: ClickHouse Cloud, Open-source ClickHouse, Bring Your Own Cloud, ClickPipes ingestion, Keeper, Enterprise support. That makes the buying center relatively clear for sellers, because product, engineering, finance, data, HR or payments leaders usually evaluate the platform based on measurable workflow impact, security and integration depth.
As of June 2026, the most durable facts are its 2021 as company; open source released 2016 founding date, San Francisco Bay Area / Amsterdam headquarters/operating hub, ~500+ employee scale and ~$6.35B private valuation (2025 Series C). Where the company does not disclose revenue or profitability, this profile states that explicitly instead of substituting private estimates.
What does ClickHouse offer?
ClickHouse offers ClickHouse Cloud, Open-source ClickHouse, Bring Your Own Cloud, ClickPipes ingestion and adjacent platform capabilities.
- ClickHouse Cloud· Product
- Open-source ClickHouse· Product
- Bring Your Own Cloud· Product
- ClickPipes ingestion· Product
- Keeper· Product
- Enterprise support· Product
How does ClickHouse make money?
ClickHouse makes money through clickhouse cloud uses usage-based pricing across compute, storage and data transfer with basic, scale and enterprise tiers; open-source clickhouse is free under apache 2.
ClickHouse Cloud uses usage-based pricing across compute, storage and data transfer with Basic, Scale and Enterprise tiers; open-source ClickHouse is free under Apache 2.0. Enterprise contracts add support, security, private networking, BYOC and compliance controls.
The commercial motion is usage- and expansion-driven: teams usually start with a concrete workflow, then add seats, modules, credits, compute, payment volume, data access, compliance controls or enterprise support as adoption spreads. That means growth depends on product-led entry for smaller teams and negotiated enterprise contracts where security, procurement and integrations matter.
For sellers, the budget owner is the function that experiences the workflow pain first. A vendor replacing manual work, improving risk controls or integrating with the named systems in the tech-stack facet has a stronger pitch than a generic productivity message.
Who leads ClickHouse?
ClickHouse is led by Aaron Katz (Co-founder and CEO) and Alexey Milovidov (Co-founder and CTO).
- Aaron KatzCo-founder and CEOCo-founder - since 2021Former Elastic executive leading commercialization of ClickHouse.
- Alexey MilovidovCo-founder and CTOCreator - ClickHouse since Yandex eraOriginal creator of ClickHouse and technical leader.
- Tanya BraginVP ProductExecutiveProduct leader for database and cloud platform direction.
- Tyler HannanSVP MarketingExecutiveLeads positioning, developer marketing and ecosystem growth.
How do you contact ClickHouse's leadership?
Use published company channels first; the personal addresses below are clearly marked as format-following rather than verified inboxes. The observed/presumed pattern for this profile is format-following, not verified: first.last@clickhouse.com.
format-following, not verified: first.last@clickhouse.comHow much funding has ClickHouse raised?
ClickHouse has >$650M, with status: ~$6.35B private valuation (2025 Series C).
Major disclosed financing events: Sep 2021: Series A - $50M - Led by Index Ventures and Benchmark after the company spun out to commercialize ClickHouse. Oct 2021: Series B - $250M at $2B valuation - Led by Coatue and Altimeter, with Index, Benchmark, Lightspeed and others. May 2025: Series C - $350M at ~$6.35B valuation - Led by Khosla Ventures with BOND, IVP, Battery, Bessemer and existing investors; brought total funding above $650M.
The funding history shows how investors underwrote the company's market. Earlier rounds financed the initial wedge; later rounds funded enterprise expansion, infrastructure, regulatory coverage, geographic growth or broader platform scope.
If a round, valuation or revenue number is not public, this profile treats it as undisclosed. That matters for sales planning because private companies often have large budgets without publishing the exact revenue base, while acquired or IPO-track companies usually add more formal procurement and risk review.
How did ClickHouse get here?
ClickHouse's path runs from founding through product expansion, major financing and its current June 2026 status.
- 2009Project begins at YandexAlexey Milovidov and team begin work on real-time analytics storage.
- 2012Production at Yandex.MetricaClickHouse powers high-volume web analytics internally.
- 2016Open-source releaseClickHouse is released under Apache 2.0.
- 2021ClickHouse, Inc. formedThe company raises Series A and Series B in the same year.
- 2022ClickHouse Cloud launchesManaged cloud becomes the commercial growth engine.
- May 2025Series CClickHouse raises $350M at a ~$6.35B valuation.
Who are ClickHouse's competitors?
ClickHouse competes with Snowflake, Databricks, BigQuery, Druid and adjacent platform vendors.
- SnowflakeEnterprise data cloud with broad data warehouse and governance coverage.
- DatabricksLakehouse platform for data engineering, ML and analytics.
- BigQueryGoogle Cloud serverless data warehouse.
- DruidReal-time OLAP database often used for event analytics.
- StarRocksOpen-source OLAP database competing on speed and real-time analytics.
ClickHouse — frequently asked questions
