Python Software Foundation

What Python Software Foundation does

The Python Software Foundation (PSF) is a 501(c)(3) nonprofit organization, incorporated in Delaware and headquartered in Beaverton, Oregon, that exists to promote, protect, and advance the Python programming language. Founded in 2001, the Foundation maintains critical ecosystem infrastructure including python.org (the official language website hosting downloads, documentation, and community resources), the Python Package Index (PyPI) at pypi.org, the CPython reference implementation, and docs.python.org. PyPI serves as the canonical third-party package registry and processes on the order of 10 trillion annual downloads, with the underlying platform hosted on AWS and fronted by Fastly CDN. The PSF also operates the Python Security Response Team (PSRT), serves as a designated CVE Numbering Authority (CNA) for Python and pip vulnerabilities, organizes PyCon US as the largest annual gathering of the Python community, and runs a web-based interactive Python shell on python.org.

The Foundation's business model is sponsorship-and-donation-driven rather than product-priced: Python is distributed free of charge under the Python License, and PSF generates revenue from tiered corporate sponsorships (Visionary, Gold, Silver, etc.), individual donations and membership fees, PyCon US conference revenue, restricted grants (e.g., Mozilla's $170,000 in 2017), and annual fundraising campaigns such as "Python is for Everyone." The single largest corporate sponsorship to date is Anthropic's $1.5 million two-year commitment in 2026 earmarked for CPython and PyPI security, with additional sponsors including Hudson River Trading at the Visionary tier, Coursiv, and the major platforms Meta, Microsoft, Google, and AWS. Outbound, the Foundation disbursed $655,000 in grants to 257 recipients across 61 countries in 2024 and $384,000+ in PyCon US 2025 travel grants to 254 attendees, evidencing its dual role as both infrastructure operator and community redistributor of funds.

The PSF serves a horizontal, global constituency spanning individual software developers, AI/ML companies, large enterprise technology firms (Microsoft, Google, Meta, Amazon, Cloudflare, Hudson River Trading), and educational institutions in nearly 200 countries. The Foundation engages this base through PyCon US, regional PyCon and Python User Group support, the Python Core Mentorship Program, the annual Python Developers Survey (conducted with JetBrains and drawing 30,000+ respondents in 2024), Special Interest Groups, community awards, and diversity and code-of-conduct programs. The PSF is governed by an elected Board of Directors, employs 11-50 staff, has no parent company or subsidiaries, and rejected a $1.5 million US government grant in late 2025 due to anti-DEI policy restrictions—underscoring the values-driven governance posture that increasingly characterizes foundation-level open-source stewardship.

Name

Python Software Foundation

Legal name

Python Software Foundation

Website

https://python.org

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Short description

The Python Software Foundation is a 501(c)(3) nonprofit that maintains Python's core infrastructure—including PyPI, python.org, and CPython—coordinates security response as a CVE Numbering Authority, and supports the global Python community through grants, PyCon US, and educational programs.

Ownership category

akta.pro rank

Product category

Open Source Programming Language Foundation

NAICS

Grantmaking and Giving Services (81321), Grantmaking Foundations (813211), Professional Organizations (81392)

SIC

Finance Services (6199)

akta.pro primary industry

International Grantmaking & Development Foundations (BPAGAKAH)

akta.pro secondary industry

Community Foundations (BPAGAKAB)

Keywords

• Open source programming
• Python language foundation
• Package index registry
• Developer community
• Nonprofit technology

Headquarters

HQ city

Wilmington

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Operations, Personnel, Infrastructure, Others

Revenue model

1. Sponsorships and Corporate Donations: Corporate sponsors provide financial support at various tiers (Visionary, Gold, Silver, etc.). Notable sponsors include Anthropic ($1.5M), Hudson River Trading (Visionary Sponsor), Coursiv, and others including Meta, Microsoft, Google, and AWS
2. Individual Donations and Membership Fees: Individual developers and supporters can become members and make donations. PSF is a recognized 501(c)(3) non-profit organization
3. PyCon US Conference Revenue: The largest annual gathering for the Python community generates revenue through sponsorships, ticket sales, and attendee contributions
4. Grants Program: PSF awards grants to groups and individuals worldwide for Python-related projects. In 2024, awarded $655,000 USD to 257 groups or individuals in 61 countries
5. End of Year Fundraising: Annual fundraising campaigns such as 'Python is for Everyone' to raise funds for foundation operations and programs

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

The Python Software Foundation is a 501(c)(3) nonprofit that promotes, protects, and advances the Python programming language. It operates critical open-source infrastructure including the python.org website, the Python Package Index (PyPI), official Python documentation, and the CPython reference implementation, and runs the PyCon US conference and grants programs for the global Python developer community.

Product overview

The Python Software Foundation operates a platform of interconnected products and services that form the core infrastructure of the Python ecosystem. The flagship product is python.org, which serves as the central hub for Python downloads, documentation access, community resources, and PSF governance. Supporting this is PyPI (Python Package Index), the primary package distribution platform hosting hundreds of thousands of projects. The Foundation also maintains CPython, the reference implementation of the Python language, along with comprehensive official documentation at docs.python.org. The annual PyCon US conference represents the Foundation's flagship community event. Together, these products provide the complete lifecycle support for the Python programming language from language development through community engagement.

Differentiator

Problem solved

Functional benefit

Products and services

• python.org The official website of the Python programming language, providing downloads for all Python releases, documentation, news, community resources, event listings, and access to PSF services.
• Python Package Index (PyPI) The official third-party software repository for Python, hosting hundreds of thousands of projects for distribution and installation via pip.
• Python Documentation Comprehensive official documentation for Python's standard library, tutorials, and guides available at docs.python.org.
• CPython The reference implementation of the Python programming language, maintained by the PSF and the Python core developer community.
• PyCon US The largest annual gathering for the Python community, produced and underwritten by the PSF, featuring talks, workshops, and networking for Python developers worldwide.
• Python Interactive Shell Web-based interactive Python environment accessible directly from python.org, allowing users to try Python code in the browser without installation.

Quantifiable outcome

• 10 trillion annual PyPI downloads supporting global software development
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Twelve partnerships are on record, tiered minor and core.

• CoursivminorGTM or Marketing Partner · 13 February 2026Coursiv, an AI education platform, became an official sponsor of the PSF recognizing Python's foundational role in modern AI infrastructure and tools. The sponsorship aims to bridge the gap between developers who build AI tools and professionals who use them daily.
• Linux FoundationcoreStrategic or Co-development PartnerThe Linux Foundation formed the Sustaining Package Registries Working Group, bringing together major open-source package registry leaders including the Python Software Foundation to address the sustainability gap in registry infrastructure. The working group coordinates on funding models, governance, security practices, and educational outreach.
• OpenSSF (Open Source Security Foundation)coreStrategic or Co-development PartnerOpenSSF co-signed a joint statement with leading open source foundations including PSF calling on software companies to increase financial and structural support for open source maintainers. OpenSSF's 2026 priorities include an open source vulnerability database, Security Baseline, and AI-driven security tools.
• Sonatype / Maven CentralcoreStrategic or Co-development PartnerSonatype, which manages the Maven Central Java registry, partnered with the Linux Foundation and PSF to form the Sustaining Package Registries Working Group, addressing the sustainability gap in open-source registry infrastructure.
• Eclipse FoundationcoreStrategic or Co-development PartnerPart of the Sustaining Package Registries Working Group, contributing to coordinated efforts on funding models and security practices for open-source registries.
• Ruby CentralcoreStrategic or Co-development PartnerPart of the Sustaining Package Registries Working Group, coordinating with other open-source foundations on registry sustainability.
• Rust FoundationcoreStrategic or Co-development PartnerPart of the Sustaining Package Registries Working Group, contributing to efforts addressing the unsustainable funding models for critical open-source infrastructure.
• OpenJS FoundationcoreStrategic or Co-development PartnerPart of the Sustaining Package Registries Working Group, coordinating on funding models and governance for package registries.
• Alpha-OmegacoreStrategic or Co-development PartnerPart of the Sustaining Package Registries Working Group, contributing to security practices for open-source registries.
• JetBrainscoreStrategic or Co-development PartnerPSF partners with JetBrains to conduct the annual Python Developers Survey, which received responses from over 30,000 developers across nearly 200 countries, providing valuable insights into the Python ecosystem.
• FastlycoreTechnology or IntegrationFastly provides CDN services for pypi.org and files.pythonhosted.org, enabling fast global package downloads. Fastly is listed as a key third-party service supporting Python infrastructure.
• Amazon Web Services (AWS)coreTechnology or IntegrationAWS hosts the PyCon US website and is used for PyPI hosting platforms (EC2, RDS, ElastiCache). AWS is also a corporate sponsor with Donald Stufft (an AWS employee) maintaining key PyPI infrastructure.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Apache Software Foundation: Peer nonprofit foundation stewarding a major open-source ecosystem (HTTP Server, Kafka, Hadoop) with similar governance, sponsorship, and community-event models. Directly comparable as a fellow language/ecosystem foundation.
• Eclipse Foundation: Nonprofit foundation managing the Eclipse IDE and a broad portfolio of open-source projects. Direct peer as a fellow registry and language-tooling foundation and co-participant in the Sustaining Package Registries Working Group.
• OpenJS Foundation: Nonprofit under the Linux Foundation stewarding JavaScript projects (Node.js, jQuery). Directly comparable as a peer language-runtime foundation with similar registry, security, and sponsorship models, and a co-participant in the registry working group.
• Free Software Foundation: 501(c)(3) nonprofit dedicated to promoting free software. Comparable as a peer mission-driven foundation stewarding a software ecosystem (GPL licensing, GNU toolchain) and advocating open-source principles.
• Rust Foundation: Nonprofit foundation behind the Rust programming language and crates.io registry. Closely analogous in mission (language stewardship, package registry, security and grants programs) and a co-participant in the Sustaining Package Registries Working Group.
• Mozilla Foundation: Nonprofit foundation behind Firefox and a prior funder of PSF's PyPI migration via a $170K Open Source Support grant. Directly comparable as a peer open-source/web-ecosystem foundation with overlapping community, grants, and advocacy missions.
• Ruby Central: Nonprofit organization supporting the Ruby programming language and RubyGems package registry. Highly analogous as a peer language foundation operating a package registry and co-participant in the Sustaining Package Registries Working Group.

Broad incumbents

• Cloud Native Computing Foundation (CNCF): Linux Foundation sub-foundation stewarding Kubernetes and a vast cloud-native ecosystem. Comparable as a large-scale open-source foundation with similar sponsorship, governance, and developer-program mechanics.
• Linux Foundation: The largest open-source foundation, hosting hundreds of projects. Directly comparable as a peer 501(c)(6) umbrella for open-source infrastructure, including hosting the Sustaining Package Registries Working Group that PSF participates in.
• OpenSSF (Open Source Security Foundation): Cross-industry consortium focused on open-source security, co-signed a joint statement with PSF. Comparable as a peer security-coordination body with overlapping CVE, supply-chain, and tooling initiatives.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/ThePSF
• GitHubgithub.com/python
• LinkedInlinkedin.com/company/python-software-foundation
• Facebookfacebook.com/pythonlang

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds1 record

Investors1 record

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M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Python Software Foundation