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We are The InnerSource Commons.Our community develop the practices and frameworks for InnerSource — the methodology that technology leaders use to build better software, faster.
- Break down silos
- Increase code reuse
- Empower your engineers
InnerSource Summit 2025
Join the InnerSource Summit 2025 — the leading event for open collaboration and innovation.
Global leaders collaborate with InnerSource
Bosch
- The Rise of InnerSource
"InnerSource fosters cross-divisional collaboration and learning, boosts innovation and accelerates development.
We have seen community developed solutions emerging as standards and replacing double developments."
4000+
Members
300+
Community videos
48
Patterns
Founded in
2015
1000+
Companies
Discover InnerSource
InnerSource is a series of frameworks and principles that help developers to share resources
InnerSource applies proven open source principles to improve collaboration across your company.
Now you can break down the silos and dependencies that slow down development, waste resources and frustrate your best engineers.
- Faster software development
- Fewer organisational bottlenecks
- Happier, more engaged engineers
Chan Voong
- Comcast
"InnerSource gets more eyes on the code. This allows our teams to find bugs more quickly and empowers them to share knowledge and solve their own problems."
InnerSource for leaders
Leaders use InnerSource to collaborate at scale and create a happier, more productive workplace
InnerSource enables leaders to maximise their engineering ROI.
You can eliminate duplicated work, break down knowledge silos and create a more efficient, transparent and scalable development culture that directly improves your business.
- Reduced silos and bottlenecks
- Improved developer experience
- Increased employee retention
Sally Deering
- Capital One
"The InnerSource Commons has given us so much when it comes to setting up great practices for our communities. We'd love to collaborate more going forwards."
InnerSource for practitioners
Practitioners can contribute to InnerSource and shape the future of collaboration
The InnerSource Commons is the professional community for InnerSource leaders.
We provide a space to connect with fellow practitioners, grow your network and contribute to the practices that advance our industry.
- Community groups and events
- Networking with fellow practitioners
- Contribution to the knowledge base
Olivia Bouzek
- IBM Alum
The InnerSource Commons has given us so much when it comes to setting up great practices for our communities. We'd love to collaborate more going forwards."
Research & Insights
Researchers can access the latest reports to track InnerSource adoption
The InnerSource Commons is the definitive source for data and trends on InnerSource adoption.
We create in-depth case studies and publish the industry's benchmark annual report — 'State of InnerSource'..
- 'State of InnerSource' annual report
- Case studies with global brands
- Best practices and strategies
Tracy Buckner
- Red Hat
What amazed me was that the information from InnerSource Commons was so tactical. It wasn't just interesting to read; it was a solution you could actually put to work.
Case studies
InnerSource enables industry leaders to collaborate at scale
PayPal's CheckOut team used InnerSource to reduce time spent on disruptive escalations from 65% of their sprint down to under 5%. This dramatic drop in interruptions allowed them to complete their planned work and eliminate a major source of frustration for engineering management.
At Bosch, the InnerSource community scaled to over 34,000 members across 150 business units. This massive internal adoption resulted in the creation of 12,000 shared code repositories and over one million individual code contributions, demonstrating profound organizational growth.
Microsoft leadership mandated that every engineer should practice InnerSource, establishing a new company-wide expectation for internal collaboration. Success was defined by clear metrics, with healthy projects achieving 15-35% of their pull requests from external contributing teams.
A Deloitte client demonstrated significant cost avoidance by tracking the reuse of a single shared library across more than 400 different applications. This allowed them to calculate the direct financial ROI of InnerSource by quantifying the massive reduction in duplicated development effort.
By embracing InnerSource, teams at Capital One are now delivering products in fewer sprints. Tapping into shared contributor expertise and prioritizing code reuse over reinvention has directly led to lower overall developer costs and increased resource efficiency across the organization.
Deutsche Bahn used an InnerSource license to sweep away the legal impediments that prevented code sharing across its 500 separate legal entities. This governance breakthrough was the critical step that unlocked seamless collaboration throughout the entire global group.
IBM consolidated fragmented investments into a common Watson NLP stack using InnerSource principles. The move was so successful that key partner SAP decided to go "all in" with the technology, providing powerful external validation of IBM's architecture and strategy.
According to Gartner research, InnerSource initiatives with active executive sponsorship are 73% more likely to succeed and achieve a positive return on investment. This data proves that engaged leadership is the single most important factor for program success.
Red Hat engineers were "amazed" by the quality of the InnerSource Commons' resources, calling them tactical and immediately useful. The ISC's Patterns and Learning Path provided a clear, actionable solution that their teams could put to work right away.
At the BBC, adopting InnerSource created a natural pathway for open-sourcing key components to the public. Because the internal documentation, contribution processes, and culture of transparency were already established, the move to external open source was a low-friction next step.
InnerSource: a Gartner hype cycle trend
Gartner
- Software Engineering for 2023
“InnerSource gained mainstream recognition when it was first captured in Gartner's Hype Cycle and included in Top Strategic Technology Trends in Software Engineering for 2023.
This milestone demonstrates InnerSource's rising momentum and establishes its position as a key strategic technology trend in the software engineering landscape.”
Videos
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