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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 1–18 of 18 organizations

  • Fortran-lang

    Programming languages

    Fortran-lang is an open-source community that develops tools and libraries for modern Fortran development. Our flagship projects include the standard library, Fortran build system and package manager, as well as the interactive compiler, LFortran. Fortran-lang also provides an inclusive and welcoming space for all Fortran enthusiasts around the world to collaborate.

    2026
    4
    Cycles
    6
    Projects
    25
    Trend
    PythonCC++LLVM+2
  • gprMax

    Science and medicine

    gprMax is open source software that simulates electromagnetic wave propagation. It uses Yee's algorithm to solve Maxwell’s equations in 3D using the Finite-Difference Time-Domain (FDTD) method.

    2026
    3
    Cycles
    6
    Projects
    21
    Trend
    PythonCythonCUDAOpenMP+2
  • INCF

    Science and medicine

    The International Neuroinformatics Coordinating Facility (INCF; www.incf.org) is an international organization launched in 2005, following a proposal from the Global Science Forum of the OECD.

    2026
    23
    Cycles
    11
    Projects
    234
    Trend
    PythonJavaScriptJavaC+++6
  • MBDyn

    Science and medicine

    Open Source Multibody Simulation

    2026
    –
    Cycles
    8
    Projects
    13
    Trend
    C++PythonScriptingC
  • MDAnalysis

    Science and medicine

    MDAnalysis is a Python library for the analysis of computer simulations of many-body systems at the molecular scale, spanning use cases from interactions of drugs with proteins to novel materials. It is written by scientists for scientists and is used for cutting edge research in biophysics, chemistry, soft-matter physics, and materials research around the world in academia and national research labs. MDAnalysis strives to be highly interoperable and hence a growing number of projects use MDAnalysis as their foundational library or integrate it.

    2026
    3
    Cycles
    7
    Projects
    19
    Trend
    PythonCythonCC+++2
  • Open Chemistry

    Science and medicine

    Advancing Open Source & Open Science for Chemistry

    2026
    –
    Cycles
    9
    Projects
    51
    Trend
    PythonJavaScriptOpenGLC+++6
  • OpenAstronomy

    Science and medicine

    OpenAstronomy is a collaboration between open source astronomy, astrophysics & heliophysics projects that are used by researchers and software engineers around the world to study our universe either by analysing the data obtained from amazing instruments like the [James Webb Space telescope](https://jwst.nasa.gov/), the [Square Kilometer Array](https://www.skatelescope.org/) or the [Solar Dynamic Observatory](http://sdo.gsfc.nasa.gov/), developing very sophisticated numerical models (eg., [FLASH](http://flash.uchicago.edu/)) or designing interplanetary trajectories for human-made spacecraft. The analysis of such data helps multiple types of research, from being able to forecast solar storms to detecting planets in other stars, to understanding how galaxies are formed to explain the expansion and the origin of the universe.

    2026
    5
    Cycles
    11
    Projects
    82
    Trend
    CPythonJuliaNumPy+6
  • OSGeo (Open Source Geospatial Foundation)

    End user applications

    The Open Source Geospatial Foundation (OSGeo) is a not-for-profit organization whose mission is to foster global adoption of open geospatial technology by being an inclusive software foundation devoted to an open philosophy and participatory community-driven development.<br/><br/>

    2026
    6
    Cycles
    11
    Projects
    107
    Trend
    CPythonOgc StandardsC+++6
  • Public Lab

    Science and medicine

    Tools for communities to measure pollution

    2026
    –
    Cycles
    6
    Projects
    38
    Trend
    JavaScriptRuby On RailsWebRTCLeaflet+3
  • Python Software Foundation

    End user applications

    Python is a programming language that lets you work more quickly and integrate your systems more effectively.

    2026
    13
    Cycles
    11
    Projects
    290
    Trend
    PythonMercurialJavaScriptSQLite+2
  • Ruby Science Foundation

    Science and medicine

    Tools for scientific computation in Ruby

    2026
    –
    Cycles
    4
    Projects
    13
    Trend
    CC++RubyJruby+8
  • SageMath

    Science and medicine

    Mathematicians, scientists, researchers, and students need a powerful tool for their work or study. SageMath is a freely available open-source mathematical software system bundling the functionality of many software libraries, exposing their features in a common interface and extending on top of this with its own powerful algorithms. By leveraging the flexibility and universality of the underlying Python interpreter, SageMath is able to accommodate for a vast range of their requirements.

    2026
    4
    Cycles
    11
    Projects
    59
    Trend
    PythonCythonJavaScriptC+++2
  • Scilab

    End user applications

    Cross-platform numerical computational package and programming language.

    2026
    –
    Cycles
    3
    Projects
    14
    Trend
    CJavaC++Fortran+3
  • SymPy

    Science and medicine

    SymPy is a Python library for symbolic mathematics. It aims to become a full-featured computer algebra system (CAS) while keeping the code as simple as possible in order to be comprehensible and easily extensible. SymPy is written entirely in Python.

    2026
    5
    Cycles
    11
    Projects
    68
    Trend
    PythonC++NumPyJupyter
  • TARDIS SN

    Science and medicine

    Exploring supernovae made easy

    2026
    –
    Cycles
    3
    Projects
    9
    Trend
    CPythonCythonNumba+3
  • The Julia Language

    Science and medicine

    The Julia Language is an open-source, high level, and dynamic language built to be easy to use like Python while having speed near C++. As an umbrella organization, we house projects related to core Julia (the language) as well as packages from the broader Julia ecosystem.

    2026
    12
    Cycles
    10
    Projects
    152
    Trend
    CJavaScriptC++Julia+10

Contributor counts are accepted projects per cycle.

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