Concentration & risk
Open source runs on a population smaller than a small town
The top 1% of human contributors — roughly 7,800 people — produce 60.9% of all commits.
- Headline statistic
- 60.9%
- 2026 edition
A small contributor cohort produces most commits
The top 1% of human contributors produce 60.9% of commits, while the bottom 90% produce 9.3%.
Contributor cohorts are ranked by lifetime commits and compared with their share of attributed commits.
Next 9% and bottom 90% are arithmetic differences from the source's top-1% and top-10% totals.
Source: FOSS Data — https://www.fossdata.org
Interactive visualization is optional. Exact values are available in the data table below.
Data table
Scroll horizontally to review every data column when needed.
| Cohort | Contributor share | Commit share |
|---|---|---|
| Top 1% | 1% | 60.9% |
| Next 9% | 9% | 29.8% |
| Bottom 90% | 90% | 9.3% |
Supporting explanation
The top 1% of human contributors — roughly 7,800 people — produce 60.9% of all commits. The top 10% produce 90.7%.
Publication details
- Category
- Concentration & risk
- Applicable filter
- Category: Concentration & risk
- Edition
2026 edition
Measured 25 June 2026
Published 2 August 2026
- Source
- Based on the Exodos Labs provenance dataset.