Where is Astral headquartered?

Astral is headquartered in Brooklyn, New York, United States. The company has a team of 11-50 people.

Astral operates in the AI Developer Tools sector. High-performance Python developer tools company behind Ruff, uv, and ty, acquired by OpenAI in 2026. 10x-1000x faster Python developer tools written in Rust, replacing legacy Python tooling (pip, flake8, black, isort, mypy, pyright) with unified, high-performance alternatives.

When was Astral founded?

Astral was founded in 2022. It is based in Brooklyn, New York, United States.

Who is the CEO of Astral?

Charlie Marsh is the CEO of Astral. The company was founded in 2022.

Where is Astral located?

Astral is headquartered in Brooklyn, New York, United States.

What funding stage is Astral at?

Astral is currently at the Acquired stage.

How many employees does Astral have?

Astral has approximately 11-50 employees.

Astral

Category: AI Developer Tools

High-performance Python developer tools company behind Ruff, uv, and ty, acquired by OpenAI in 2026. Astral was founded in 2022. The company is led by Charlie Marsh. Based in Brooklyn, New York, United States. Team size: 11-50. Total funding raised: $4M. Latest round: Seed. Key investors include Accel, Caffeinated Capital, Guillermo Rauch, Solomon Hykes, David Cramer, Wes McKinney, Nick Schrock.

Founded: 2022
Headquarters: Brooklyn, New York, United States
Team size: 11-50
Total funding: $4M

Value proposition

10x-1000x faster Python developer tools written in Rust, replacing legacy Python tooling (pip, flake8, black, isort, mypy, pyright) with unified, high-performance alternatives.

Products and solutions

Ruff (extremely fast Python linter and formatter, written in Rust), uv (all-in-one Python package and project manager, written in Rust), ty (extremely fast Python type checker and language server, written in Rust), pyx (Python-native package registry)

Unique value

Rust-based Python tooling that delivers 10x-1000x speed improvements over traditional Python tools, with full backward compatibility and seamless integration into existing workflows.

Target customer

Python developers and engineering teams across enterprises, open-source projects, and data science/AI organizations.

Industries served

Software Development, Data Science, AI/ML, Open Source, Enterprise Engineering

Technology advantage

All tools written in Rust for maximum performance; unified toolchain replacing multiple legacy tools; backward compatible with existing Python ecosystem standards; open-source with permissive licensing; strong community adoption with millions of monthly downloads.

How they differentiate

Radical performance improvements (10x-1000x) over legacy Python tools by rewriting in Rust; unified toolchain (linter, formatter, package manager, type checker) under one company; full backward compatibility with existing tools (pip, flake8, black, isort, mypy) enabling drop-in replacement.

Main competitors

pip/poetry (package management), flake8/black/isort/pylint (linting/formatting), mypy/pyright/pylance (type checking)

Key partnerships

Open-source community partnerships, GitHub ecosystem integration, joined OpenAI Codex team (March 2026)

Notable customers

Amazon, Microsoft, Netflix, Mozilla, Hugging Face, LangChain, FastAPI, Apache Airflow, Pandas, SciPy

Major milestones

2022: Astral founded by Charlie Marsh, 2023 (Apr): Raised $4M seed led by Accel, 2024 (Feb): Launched uv package manager, 2025 (Dec): Launched ty type checker, 2026 (Mar): Acquired by OpenAI for nine-figure sum, team joins Codex division.

Growth metrics

Ruff: 1M+ monthly downloads within months of launch, 12K+ GitHub stars; uv: 126M+ monthly downloads on PyPI by early 2026; Codex (post-acquisition): 2M+ weekly active users.

Market positioning

Market leader in next-generation Python developer tooling; dominant position in Python linting (Ruff) and rapidly growing in package management (uv) and type checking (ty); acquired by OpenAI to power Codex AI coding assistant.

Geographic focus

Global (open-source ecosystem with worldwide adoption)

About Charlie Marsh

Ex-Staff Software Engineer at Spring Discovery; Ex-Senior Engineer at Khan Academy; Computer Science major at Princeton University.

Official website: https://astral.sh