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DIRECTORY

522 organizations since 2016

Filter by stack, capacity and track record. Every number comes from Google's public archive.

Showing 1–19 of 19 organizations

  • Apache Software Foundation

    WebNew in 2026

    The Foundation provides an established framework for intellectual property and financial contributions that simultaneously limits contributors potential legal exposure. Through a collaborative and meritocratic development process, Apache projects deliver enterprise-grade, freely available software products that attract large communities of users. The pragmatic Apache License makes it easy for all users, commercial and individual, to deploy Apache products.

    2026
    34
    Cycles
    1
    Projects
    34
    Trend
    CJavaC++
  • Casbin

    Web

    Authorization library that supports RBAC and ABAC

    2026
    –
    Cycles
    3
    Projects
    22
    Trend
    PythonJavaScriptGoReact+6
  • Ceph Foundation

    Data

    An open-source storage platform that implements storage on a single distributed computer cluster and provides a 3-in-1 interface for object-, block- and file-level storage.

    2026
    3
    Cycles
    9
    Projects
    34
    Trend
    PythonCC++Object-storage+5
  • CERN SFT

    Science and medicine

    The SFT is part of CERN (European Organization for Nuclear Research).

    2026
    –
    Cycles
    1
    Projects
    10
    Trend
    PythonJavaScriptC++Clang
  • Debian

    Operating systems

    The Debian Project is an association of Free Software developers who volunteer their time and effort in order to produce and maintain a completely free operating system Debian. Since its launch, the Debian project has grown to comprise more than 1,000 members with official developer status, alongside many more volunteers and contributors. Today, Debian encompasses over 50,000 packages of free, open source applications and documentation.

    2026
    7
    Cycles
    9
    Projects
    85
    Trend
    CPythonDjangoRuby+7
  • Eclipse Foundation

    Programming languages

    The Eclipse Foundation provides our global community of individuals & organizations with a mature, scalable, and business-friendly environment for OSS collaboration and innovation.

    2026
    6
    Cycles
    10
    Projects
    74
    Trend
    CC++JavaGeospatial+15
  • Global Alliance for Genomics and Health

    Science and medicine

    The Global Alliance for Genomics and Health (GA4GH) was formed to help accelerate the potential of genomic medicine to advance human health. It brings together over 400 leading genome institutes and centers with IT industry leaders to create global standards and tools for the secure, privacy respecting and interoperable sharing of Genomic data.

    2026
    4
    Cycles
    10
    Projects
    49
    Trend
    PythonJavaSQLProtobuf+10
  • JBoss Community

    Web

    JBoss Community is a community of open source projects. The community hosts a diverse set of projects that are written in various programming languages. The primary language is Java, however there are also projects that are written in Go, Rust, Ruby, PHP, Node and other languages.

    2026
    8
    Cycles
    8
    Projects
    60
    Trend
    AndroidJavaIDEAsciidoctor+11
  • LibreOffice

    End user applications

    LibreOffice is a modern Free & Open Source Office suite, one of the largest open source projects, and used by millions of users worldwide. LibreOffice is compatible with many file formats like Microsoft® Word, Excel, PowerPoint and Publisher. At its heart though, LibreOffice is built around an open standard, the OpenDocument Format, as its native file format. LibreOffice is developed by users who, just like you, believe in the principles of Free Software and in sharing their work with the world in non-restrictive ways. The development of LibreOffice is supported by The Document Foundation which provides the infrastructure for the project. We believe that users should have the freedom to run, copy, distribute, study, change and improve the software that we distribute. While we do offer no-cost downloads of the LibreOffice suite of programs, Free Software is first and foremost a matter of liberty, not price. We campaign for these freedoms because we believe that everyone deserves them. Though the members of our community hail from many different backgrounds, we all value personal choice and transparency, which translates practically into wider compatibility, more utility, and no end-user lock-in to a single product. We believe that Free Software can provide better-quality, higher-reliability, increased-security, and greater-flexibility than proprietary alternatives. LibreOffice is a large project (approx. 6MLOC), which makes it interestingly complex, but at the same time, provides a place for all sorts of contribution & skills. The community behind LibreOffice is the heart of the project, without which we would not have the resources to continue developing our software. The passion and drive that every individual brings to the community results in collaborative development that often exceeds our own expectations. With tons of different roles in the project, we invite everyone to join us in our work and help us to make LibreOffice known, prosper, and accessible to all.

    2026
    3
    Cycles
    11
    Projects
    68
    Trend
    PythonAndroidJavaOpenGL+1
  • Linkerd

    Infrastructure and cloud

    Linkerd is the ultralight service mesh for Kubernetes and beyond

    2026
    –
    Cycles
    2
    Projects
    4
    Trend
    PrometheusReactRustGo+2
  • MariaDB

    Data

    MariaDB Foundation is the non-profit organization behind MariaDB Server, the fastest growing open source databases. MariaDB Foundation's mission is to ensure the continuity of the MariaDB Server code as well as foster and facilitated collaboration within the MariaDB ecosystem. As part of GSoC, MariaDB Foundation seeks to bring more developers into the MariaDB Server (and related projects) code base.

    2026
    8
    Cycles
    11
    Projects
    47
    Trend
    CMySQLMariaDBPerl+6
  • MetaCall

    Programming languages

    When working with different technologies and developers of different programming languages, the productivity of the entire team worsens due to the lack of interoperability and communication between them. If the developers need two technologies which are written in different programming languages, for instance, a C/C++ library called from NodeJS, the team usually needs to port to one of the two languages or write a wrapper around them. Maintaining a port of a library or the plumbing code is frequently error-prone, time-consuming, and does not add any value to the final product.

    2026
    6
    Cycles
    5
    Projects
    25
    Trend
    PythonJavaScriptCC+++6
  • Open Genome Informatics

    Science and medicine

    The Open Genome Informatics group represents an umbrella organization consisting of several open source and open access genomics and bioinformatics projects worldwide. Our goals are to develop and maintain a collection of sustainable software tools for managing, analyzing, visualizing, storing, and disseminating genomic data.

    2026
    3
    Cycles
    7
    Projects
    31
    Trend
    PythonJavaNode.jsGwt+8
  • Open Technologies Alliance - GFOSS

    Science and medicine

    Open Technologies Alliance (GFOSS) is a non-profit organization, with 37 Universities and Research Centers as its shareholders. Our main goal is to promote Openness. GFOSS – Open Technologies Alliance is a platform for Open Standards, Free Software, Open Content, Open Data & Open Hardware in Greece. The major Greek Universities and Research Centers participate in GFOSS – Open Technologies Alliance, while leading members of the Greek community of developers play a key role in the implementation of our policies. Through our initiatives we aspire to contribute and coordinate the efforts of groups of volunteers, public servants, university researchers and students enabling them to form the backbone of Greek FOSS development and implementation. GFOSS is one of the strategic actors for the promotion of OSS throughout Greece (see https://joinup.ec.europa.eu/sites/default/files/inline-files/OSS%20Country%20Intelligence%20Report_GR.pdf ). Many public administrations and academic institutions collaborate with GFOSS to implement open source projects and through Google Summer of Code we give the opportunity to students to actively engage in the production and the actual implementation of an open source project. GFOSS also contributes and advises on the development of various open source projects related to e-government and digital transformation in Greece (e.g. https://howto.gov.gr/ - https://forma.gov.gr/) and actively promotes the use of Open Source software and hardware in the Greek primary and secondary education through the Open Educational Technologies Competition (https://openedtech.ellak.gr/ )

    2026
    7
    Cycles
    9
    Projects
    77
    Trend
    PythonMySQLJavaPHP+16
  • OWASP Foundation

    Security

    As the world’s largest non-profit organization concerned with software security, OWASP:

    2026
    26
    Cycles
    10
    Projects
    128
    Trend
    PythonJavaScriptJavaHTML+10
  • syslog-ng

    Data

    Enhanced log daemon, w/ wide range of I/O methods

    2026
    –
    Cycles
    6
    Projects
    12
    Trend
    CPythonJavaRust+7
  • The FreeBSD Project

    Operating systems

    FreeBSD is an operating system renowned for its advanced networking capabilities, robust security features, and exceptional performance. It is used across a wide spectrum of computing environments, ranging from the most heavily trafficked websites to desktop computers and embedded devices. Our source code is the foundation for well-known products such as the Sony PlayStation, Junos (the operating system powering Juniper routers), and elements of Apple's macOS. Additionally, FreeBSD runs on servers at Netflix that stream terabits of video content every second.

    2026
    11
    Cycles
    11
    Projects
    87
    Trend
    CC++LLVMShell Script+6

Contributor counts are accepted projects per cycle.

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Every organization since 2016