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DuckDB
Amsterdam, NL · Founded 2018 · 10 employees on LinkedIn · 5 known investors
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DuckDB is an open-source SQL database engine that executes queries directly on files and cloud data sources like Parquet, JSON, and S3. It provides a columnar storage engine optimized for analytics workloads and is available across operating systems with client APIs for major programming languages.
Also known as DuckLabs
Founders & leadership
DuckDB was founded in 2018 by Hannes Mühleisen.
Investors · 5
How we know: Madrona Venture Group's portfolio page · Not right? Tell us
How we know: press coverage · Not right? Tell us
How we know: funding news · press coverage · Not right? Tell us
How we know: press coverage · Not right? Tell us
How we know: press coverage · Not right? Tell us
Company profile
researched Aug 2026DuckDB is an analytical SQL database management system that can run in-process and be deployed across environments ranging from edge devices to servers with hundreds of cores. It uses a PostgreSQL-inspired SQL dialect and can read and write common data formats, including CSV, JSON, Parquet, Iceberg, Delta Lake, Avro, Arrow, Excel, Vortex, Lance and DuckLake, either from local storage or from object storage. Queries can be executed directly against files, including remote Parquet and CSV files accessed over HTTPS.
The project is positioned as part of a broader "Duck Stack" that includes DuckDB itself, Quack (a client-server protocol in which both client and server are full DuckDB instances, allowing remote database access alongside client-side computation), DuckLake (a lakehouse format built on SQL that stores data in object storage and uses a SQL database as catalog), and first-class Apache Iceberg support for reading and writing Iceberg tables. Functionality can be extended through extensions that add functions and support for additional formats.
DuckDB provides native client APIs for major programming languages and interfaces, including a command line interface, Python, Go, Java (JDBC), Node.js, C, C++, R, Rust and ODBC, with installation through package managers such as pip, npm, cargo, go get, downloadable artifacts, and a shell install script. It also integrates with data frame libraries such as pandas and R tooling including dplyr and duckplyr, and supports user-defined functions and bulk loading via an Appender API.
Business model
DuckDB and related projects are distributed under the MIT license as free and open-source software, governed by the independent DuckDB Foundation.
Latest developments
An August 2026 blog post by Mark Raasveldt and Hannes Mühleisen announced that DuckLabs would join AWS while the projects remain open source. Recent engineering blog posts covered DuckDB table functions in Java and recursive CTE execution performance.
▸Full profile — market position, technology, go-to-market
Market position
Positioned as an analytical database and query engine that extends beyond a query engine into a stack comprising a database, a client-server protocol, and lakehouse format support, integrating with widely used cloud storage, database and file-format ecosystems.
Technology
Columnar-oriented analytical SQL engine with an in-process deployment model, a PostgreSQL-inspired query language, automatic CSV format/column type detection, an extension mechanism for new functions and formats, spatial functions, user-defined functions, and an Appender API for bulk inserts. Connectors span object storage and cloud platforms (Amazon Web Services, Microsoft Azure, Google Cloud, Cloudflare, Hugging Face) and other databases (SQLite, MySQL, PostgreSQL, ODBC, MotherDuck).
Go-to-market
Open-source distribution through language package managers and direct downloads, supported by public documentation and an engineering blog covering internals and client features.
Developers, data practitioners and analysts working with local files, data frames and cloud object storage, across deployment targets from edge devices to large multi-core servers.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Related companies · 7
Companies working in the same space as DuckDB.
Timeline · 1
launches, deals, and filingsA post on the DuckDB engineering blog by Mark Raasveldt and Hannes Mühleisen announced that DuckLabs would join AWS, with the projects remaining open source.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 1
primary sources listed
- DuckDBduckdb.org · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does DuckDB do?
- DuckDB is an open-source, in-process analytical SQL database system deployable from edge devices to many-core servers.
- Who founded DuckDB?
- DuckDB was founded by Hannes Mühleisen in 2018.
- Who are DuckDB's investors?
- DuckDB's investors include Madrona Venture Group, Altimeter Capital, Andreessen Horowitz, Felicis Ventures, Redpoint Ventures.
- Where is DuckDB headquartered?
- DuckDB is headquartered in Amsterdam, NL.