ClickHouse
ClickHouse is an open-source, column-oriented OLAP database management system that allows users to generate analytical reports using SQL queries in real-time.
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Claim it →- Founded
- 2021
- Headcount
- 185
- Open roles
- 160
- Last raised
- Series D · Sign in to view
Inside ClickHouse
Real-time analytics at any scale — trusted by Cloudflare, Spotify, and Uber.
ClickHouse is the open-source OLAP database built for real-time analytics at massive scale. Originally developed at Yandex and open-sourced in 2016, ClickHouse became the database of choice for companies that need to query billions of rows in milliseconds. The commercial company — ClickHouse Inc. — was founded to build ClickHouse Cloud and enterprise support around the open-source core. Their $400M Series D closed January 2026, reflecting the category's move from niche to mainstream. With 175 open roles and ~185 employees in Palo Alto, the company is scaling engineering and go-to-market aggressively.
Company at a glance
- 175 open roles across engineering, sales, and customer success
- $400M Series D closed January 2026
- ~185 employees — scaling fast with significant capital
- Trusted by Cloudflare, Spotify, and Uber for real-time analytics
- Open-source core with 30,000+ GitHub stars
Hiring
175 open roles as of June 2026 across engineering, sales, and customer success.
The team
Culture & perks
Culture
Open-source-native culture that values technical depth, community contribution, and engineering excellence. The team takes performance seriously — ClickHouse engineers obsess over query latency, storage efficiency, and distributed systems correctness. Strong culture of documentation and transparency, inherited from the open-source project. The team is international and distributed.
Common misconception
Q: What is ClickHouse? A: An open-source column-oriented database designed for OLAP (online analytical processing) — specifically, running fast analytical queries over very large datasets. It's dramatically faster than Postgres or MySQL for analytics workloads, often returning results in milliseconds over billions of rows. Q: Who uses ClickHouse? A: Companies that need real-time analytics at scale: Cloudflare uses it for DNS and network analytics, Spotify for music streaming data, Uber for ride data. Hundreds of data-intensive companies across observability, fintech, and adtech. Q: What is the relationship between the open-source project and ClickHouse Inc.? A: ClickHouse Inc. is the commercial company that maintains the open-source database and operates ClickHouse Cloud (fully managed ClickHouse). The open-source community is massive, which gives ClickHouse a strong distribution moat. Q: What roles are they hiring for? A: 175 open roles across database engineering (C++, distributed systems), cloud infrastructure, developer relations, enterprise sales, and customer success. Strong demand for engineers who understand distributed databases at scale. Q: What is the engineering culture like? A: Deep technical, open-source native, and distributed systems-focused. The core engineers are some of the best database engineers in the world. High bar for technical depth.
Customers
Backed by
Funding context
$400M Series D closed January 2026, bringing total funding to over $700M. The round reflects the rapid adoption of ClickHouse Cloud and investor confidence that ClickHouse is becoming the default OLAP database for real-time analytics workloads at scale.
How ClickHouse builds
From open roles — extracted from ClickHouse’s live job descriptions
Databases
Programming Languages
DevOps & Infrastructure
Cloud Platforms
Monitoring & Observability
Frameworks & Libraries
Data Engineering & Warehousing
Other Software & Platforms
Company-reported
Founders & key people
Hiring at ClickHouse
Capital raised
Categorized in
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ClickHouse's Investors
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Where they work
ClickHouse Headquarters Location
Palo Alto, CA, 94306