ClickHouse
The growth story
ClickHouse grew from 9 to 661 employees between 2021 and 2026, raising $1.1B along the way, most recently a Series D in January 2026.
About
ClickHouse is a fast, open-source columnar database built for real-time data processing and analytics at scale. ClickHouse Cloud delivers the query speed and concurrency that applications demanding instant insight from large volumes of data require. As AI agents become more embedded in software, generating higher query volumes at tighter latency, ClickHouse provides a high-throughput, low-latency engine purpose-built for that workload.
Founders and leadership
Departments, and which ones grew
Headcount by function: Engineering 288 (+82% YoY), Sales 90 (+190% YoY), Information Technology 57 (+58% YoY), Business Development 35 (+84% YoY), Product Management 28 (+65% YoY), Marketing 21 (+163% YoY).
Talent flow
Most common previous employers of ClickHouse staff: Elastic (93), Snowflake (39), Yandex (35), Databricks (24), Amazon Web Services (AWS) (22), Microsoft (22). Former ClickHouse employees most often moved to Dash0 (3), Tsuga (2), Squid AI (2), Forto (1), Western Governors University (1), Hinge Health (1).
Alumni worth knowing
Hiring now
Web traffic
Traffic mix: 42% direct, 49% search, 1% social, 1% paid.
What this company is made of
Most common skills at ClickHouse: Python (Programming Language) (256), SQL (214), Linux (195), Java (168), Cloud Computing (163), JavaScript (163), Software Development (146), Amazon Web Services (AWS) (138).
Where the team actually sits
ClickHouse people are concentrated in California, United States (48), North Holland, Netherlands (38), New York, United States (27), San Francisco Bay Area (24).
Search footprint
ClickHouse attracts about 11,340 organic search visits a month, traffic worth roughly $89K a month if bought through ads. It gained 2,250 ranking keywords and lost 1,751 in the last period.
What employees say
- Compensation
- 4.30 / 5
- Career opportunities
- 4.00 / 5
- Senior management
- 3.60 / 5
- Work-life balance
- 2.90 / 5
Frequently asked
ClickHouse has 661 employees as of September 2026.
ClickHouse has raised $1.1B in total, most recently a Series D round in January 2026.
ClickHouse was founded in 2021 by Aaron Katz, Yury Izrailevsky.
The most common previous employers of current ClickHouse staff are Elastic (93 people), Snowflake (39 people), Yandex (35 people).
Former ClickHouse employees most often move to Dash0 (3), Tsuga (2), Squid AI (2).
ClickHouse attracts about 11,340 organic search visits a month, worth roughly $89K a month in equivalent ad spend.
The most common skills among ClickHouse staff are Python (Programming Language), SQL, Linux, Java, Cloud Computing.
ClickHouse staff are concentrated in California, United States (48), North Holland, Netherlands (38), New York, United States (27).
ClickHouse has about 288 people in Engineering, up 82% over the past year, as of September 2026.
ClickHouse has about 90 people in Sales, up 190% over the past year, as of September 2026.
Computed from 564 current and 71 former ClickHouse profiles, as of September 2026. Source: Crustdata.
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