# Aaron Katz

> Aaron Katz is co-founder of ClickHouse. ClickHouse MCP Server on Anchor Terminal, with grades, an about and public profiles.

- Canonical: https://www.anchorterminal.com/people/aaron-katz/
- Markdown: https://www.anchorterminal.com/people/aaron-katz/index.md (~1,500 tokens)
- Slim: https://www.anchorterminal.com/people/aaron-katz/index.min.md (~1,180 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/people/aaron-katz/index.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-28

Co-founder, ClickHouse.

Aaron Katz is co-founder and CEO of ClickHouse, Inc., formed in September 2021 to build a company around the open-source ClickHouse database. He led the business team brought in at incorporation, and the company raised a $250m Series B at a $2bn valuation the following month.

## What Aaron builds

- [ClickHouse MCP Server](https://www.anchorterminal.com/tools/clickhouse-mcp-server.md), graded B, 64.6/100, in Databases & files. ClickHouse's open-source MCP server for ClickHouse databases. The owner runs it locally or self-hosted, and it gives agents SQL queries, database and table listing, and an optional embedded chDB engine. Queries are read-only by default. Co-founder, ClickHouse, researched 2026-10-26.

## Works with

- [Alexey Milovidov](https://www.anchorterminal.com/people/alexey-milovidov/), Co-founder, ClickHouse
- [Yury Izrailevsky](https://www.anchorterminal.com/people/yury-izrailevsky/), Co-founder, ClickHouse

## Backed by

- [Dragoneer Investment Group](https://www.anchorterminal.com/investors/dragoneer-investment-group/)
- [Khosla Ventures](https://www.anchorterminal.com/investors/khosla-ventures/)
- [Coatue](https://www.anchorterminal.com/investors/coatue/)
- [Altimeter Capital](https://www.anchorterminal.com/investors/altimeter-capital/)
- [Index Ventures](https://www.anchorterminal.com/investors/index-ventures/)
- [Benchmark](https://www.anchorterminal.com/investors/benchmark/)
- [Lightspeed Venture Partners](https://www.anchorterminal.com/investors/lightspeed-venture-partners/)
- [Redpoint Ventures](https://www.anchorterminal.com/investors/redpoint-ventures/)
- [FirstMark Capital](https://www.anchorterminal.com/investors/firstmark-capital/)
- [Lead Edge Capital](https://www.anchorterminal.com/investors/lead-edge-capital/)
- [Yandex](https://www.anchorterminal.com/investors/yandex/)
- [Almaz Capital](https://www.anchorterminal.com/investors/almaz-capital/)
- [BOND](https://www.anchorterminal.com/investors/bond/)
- [IVP](https://www.anchorterminal.com/investors/ivp/)
- [Battery Ventures](https://www.anchorterminal.com/investors/battery-ventures/)
- [Bessemer Venture Partners](https://www.anchorterminal.com/investors/bessemer-venture-partners/)
- [GIC](https://www.anchorterminal.com/investors/gic/)
- [Nebius](https://www.anchorterminal.com/investors/nebius/)
- [T. Rowe Price](https://www.anchorterminal.com/investors/t-rowe-price/)
- [WCM Investment Management](https://www.anchorterminal.com/investors/wcm-investment-management/)
- [Citi](https://www.anchorterminal.com/investors/citi/)
- [Insight Partners](https://www.anchorterminal.com/investors/insight-partners/)
- [Peak XV Partners](https://www.anchorterminal.com/investors/peak-xv-partners/)
- [Founders Circle Capital](https://www.anchorterminal.com/investors/founders-circle-capital/)
- [D. E. Shaw Ventures](https://www.anchorterminal.com/investors/d-e-shaw-ventures/)
- [Adams Street Partners](https://www.anchorterminal.com/investors/adams-street-partners/)
- [Rosberg Ventures](https://www.anchorterminal.com/investors/rosberg-ventures/)
- [Expanding Capital](https://www.anchorterminal.com/investors/expanding-capital/)
- [Brock Purdy](https://www.anchorterminal.com/investors/brock-purdy/)
- [Christian McCaffrey](https://www.anchorterminal.com/investors/christian-mccaffrey/)
- [Kyle Juszczyk](https://www.anchorterminal.com/investors/kyle-juszczyk/)

## Questions

### Who is Aaron Katz?

Aaron Katz is co-founder and CEO of ClickHouse, Inc., formed in September 2021 to build a company around the open-source ClickHouse database. He led the business team brought in at incorporation, and the company raised a $250m Series B at a $2bn valuation the following month.

### What does ClickHouse make?

Anchor Terminal lists ClickHouse MCP Server from ClickHouse. ClickHouse's open-source MCP server for ClickHouse databases. The owner runs it locally or self-hosted, and it gives agents SQL queries, database and table listing, and an optional embedded chDB engine. Queries are read-only by default.

### Who has invested in ClickHouse?

The sources our research read name Dragoneer Investment Group, Khosla Ventures, Coatue, Altimeter Capital, Index Ventures, Benchmark, Lightspeed Venture Partners, Redpoint Ventures, FirstMark Capital, Lead Edge Capital, Yandex, Almaz Capital, BOND, IVP, Battery Ventures, Bessemer Venture Partners, GIC, Nebius, T. Rowe Price, WCM Investment Management, Citi, Insight Partners, Peak XV Partners, Founders Circle Capital, D. E. Shaw Ventures, Adams Street Partners, Rosberg Ventures, Expanding Capital, Brock Purdy, Christian McCaffrey and Kyle Juszczyk.

### How are Aaron's tools graded?

ClickHouse MCP Server is graded B, 64.6 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://clickhouse.com/company/our-story
- https://clickhouse.com/
- https://clickhouse.com/support/program

These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.

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