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CURRENT CYCLE · 22nd EDITION

GSoC 2026 with 1,140 contributors.

183 organizations took part, and the median one took 4 contributors. 17 were new to the program and 166 had taken part before. Two announced organizations withdrew.

Organizations

183

185 announced, 2 withdrawn

First time

17

9% of organizations

Contributors

1,140

6.2 per organization

Mentors

–

Not published yet

Median per organization

4

5 in 2025

Most contributors

2026, with a tick for 2025

  1. Apache Software Foundation34new
  2. Machine Learning for Science (ML4SCI)33+2
  3. NumFOCUS27−5
  4. CERN-HSF26same
  5. OWASP Foundation26+11
  6. R project for statistical computing25+1
  7. FOSSASIA24+4
  8. INCF23−4
  9. AOSSIE22+1
  10. The Linux Foundation19−2
View as table
Organizations with the most contributors in 2026
Organization20262025
Apache Software Foundation340
Machine Learning for Science (ML4SCI)3331
NumFOCUS2732
CERN-HSF2626
OWASP Foundation2615
R project for statistical computing2524
FOSSASIA2420
INCF2327
AOSSIE2221
The Linux Foundation1921

Contributors per organization

Organizations by the number they took in 2026

  1. 41
  2. 192
  3. 1013–5
  4. 346–10
  5. 1611–20
  6. 921+
View as table
Organizations by contributors in 2026
Contributors in 2026Organizations
14
219
3–5101
6–1034
11–2016
21+9

101 organizations took 3 to 5 contributors, the most common size. The median was 4.

  1. Python793−124
  2. C++600−64
  3. C592−22
  4. JavaScript584−154
  5. Java315same
  6. Android195+9
  7. Machine learning183−27
  8. HTML144+16
  9. PHP143+24
  10. Go140−5
  11. React127+13
  12. Node.js121+26
View as table
Contributor slots by technology in 2026 and 2025
Technology20262025
Python793917
C++600664
C592614
JavaScript584738
Java315315
Android195186
Machine learning183210
HTML144128
PHP143119
Go140145
React127114
Node.js12195

Slots are accepted projects at organizations that list the technology today. Organizations list several, so rows overlap.

Organizations

Per cycle, 2026 highlighted

View as table
Organizations per cycle
Organizations
2016178
2017201
2018212
2019206
2020199
2021202
2022202
2023168
2024195
2025185
2026183

Contributors

Per cycle, 2026 highlighted

View as table
Contributors per cycle
Contributors
20161,032
20171,127
20181,071
20191,134
20201,107
20211,204
20221,054
2023908
20241,127
20251,276
20261,140

Google publishes mentor names once a cycle ends. The 2026 project list below already has every contributor.

  1. INCF

    #17 Project Experanto

    Reema Hanim Hanass

No 2026 contributor has shared a proposal or progress post yet. Were you one of them?

Claim your project

Data: Google Summer of Code public archive. Contributor counts are accepted projects. Participation history is not a prediction of selection. Official 2026 archive