Join us on Tuesday, 21st May, at 5pm BST / 6pm CEST / 11am CDT / 9am PDT to hear Michael Basil, from Dojo Center and SAP, & Bill Westfall, from Dojo Center, discuss

Insightful Learning - InnerSource Dojo Way.

Join us on Thursday, May 23rd, at 9am BST / 10pm CEST / 1:30pm IST / 6pm AES, when Clare Dillon, from University of Galway, Ireland, will discuss the State of InnerSource 2024
InnerSource Summit 2023

InnerSource Summit 2023

Registrations are Now Open

15th & 16th November 2023 - online

Join us at the world’s leading gathering of InnerSource practitioners.

Get Your Ticket Now!

InnerSource is a software development approach that incorporates the principles and practices of open source software development within companies. The InnerSource Commons (ISC) is a large community of InnerSource practitioners dedicated to exchanging knowledge and promoting InnerSource. You have the opportunity to join this community on slack.

The ISC organizes annual summits where members and non-members can gather to learn about global InnerSource trends gain insights from others who are implementing InnerSource share their own experiences connect with like-minded individuals who are enthusiastic about achieving success with InnerSource in their organizations


Click here to register for the InnerSource Summit 2023. There are three ticket options for the summit:

  • Community ticket (free): for the ISC community and those who can’t afford a registration fee
  • Community ticket with T-shirt ($35): access all sessions and receive a commemorative T-shirt after the event
  • Corporate ticket ($300): for those with corporate travel or training budgets who want to support InnerSource Commons. Includes a commemorative T-shirt. Formal invoices / receipts can be provided upon request for this option. Once you have ordered your tickets, full details of how to access the event will be emailed to you one week before the event.


If you want to reach the global InnerSource audience while supporting the work of the InnerSource Commons Foundation, we have also added an option for you to sponsor the Summit on the ticket page. For $2,000 you will be listed as an event sponsor in all the materials related to the event. We will thank you at every opportunity, and your logo and brand will be forever associated with this fabulous event through the videos that will be shared with our growing community for years to come.

In case you need any more convincing, we’ll also send you a goody bag with a selection of our popular InnerSource Commons T-shirts and stickers to share with your employees.

Formal invoices and receipts can also be provided for sponsors.


Our summit is planned over multiple time zones so we look forward to seeing you there, no matter where in the world you are sitting. The summit will comprise of 2 x 4 hour sessions, each timed for our community in particular regions. Each session will have a unique set of speakers in two tracks that run simultaneously. One registration covers both sessions, and we hope many of you will join us for both.

Part 1 is timed for Europe, Africa, East Coast US, and early birds on the US west coast: (Wed 15th Nov UTC 3-7pm / CET 4-8pm / EST 10am-2pm / PST 7-11am)

Part 2 is timed for APAC, Europe, Middle East, & Africa: (Thur 16th Nov UTC 7:30-11:30am / CET 8:30am -12:30pm / IST 1- 5pm / AEST & CST 6:30 -10:30pm)


Part 1: Wednesday, November 15th

UTC 15:00 - 19:00 - Timed for Europe, Africa, East Coast US, and early birds on the US west coast.

15:00 - 15:20 Welcome to the Summit
Including an address by Daniel Izquierdo, ISC President, and Russ Rutledge, ISC Executive Director
15:20 - 15:50 Mary Lynn Manns
Keynote: InnerSource: Sparking the Fire
15:50 - 16:15 Justin Gosses (Microsoft) & Jeff Bailey (Nike)
How the InnerSource Programs Office working group can help you as someone responsible for InnerSource enterprise-wide (Show Abstract)

Brittany Istenes (Fannie Mae)
FINOS and InnerSource (Show Abstract)
16:15 - 16:40 Addie Girouard (Third Man Agency)
Inside Out: Strategies for Communicating InnerSource Value to the C-Suite and Senior Business Leaders (Show Abstract)

Emmanuel Orozco (ADEO)
Implementing an educational program for InnerSource for developers and product owners in your company (Show Abstract)

16:40 - 17:05 Jonathan Peck (GitHub)
Is your repository collaboration ready? A hands-on guide to improving project discoverability & usability, and reducing friction (Show Abstract)

Danese Cooper (InnerSource Commons), Daniel Izquierdo (Bitergia), Russ Rutledge (WellSky) & Sebastian Spier (ISC)
Panel: InnerSource Commons AMA (Ask Me Anything) (Show Abstract)
17:05 - 17:35 Break
17:35 – 18:00 Guilherme Dellagustin (SAP SE)
How SAP Runs and Documents its InnerSource program (Show Abstract)
Tom Sadler (BBC)
Ownership in a DevOps and InnerSource environment (Show Abstract)
18:00-18:25 Tracy Buckner (Red Hat)
Collaborative Innovation: Bridging the Gap Between InnerSource and Open Source Practices (Show Abstract)

InnerSource Unconference Slot
Bring your own topic (Show Abstract)
18:25 - 18:50 David Jacques (Comcast) &Gale McCommons (Comcast)
Building an InnerSource Portal to Enhance Developer Experience (Show Abstract)

Clare Dillon (University of Galway), Hans Flaatten (NAV) & Remy DeCausemaker (
Panel: InnerSource in Government (Show Abstract)
18:50-19:00 Wrap up Day 1

Part 2: Thursday, November 16th

UTC 07:30 - 11:30 - Timed for Asia Pacific regions, Europe, & Africa

07:30 - 7:50 Welcome to the Summit Day 2 & ISC Update
Including an address by Daniel Izquierdo, ISC President, and Georg Grütter, ISC Executive Director
07:50 - 08:20 Panel: InnerSource Commons - Looking at the Future of InnerSource
Daniel Izquierdo (ISC President), Isabel Drost-Fromm (ISC Chair), Georg Grütter (ISC Executive Director) & Danese Cooper (ISC Founder)
08:20 - 08:45 Eric Keller (Roche)
"Don't touch my toys" - InnerSource lessons from our childhood (Show Abstract)
Daniel Izquierdo (Bitergia)
Analysis of development velocity in an InnerSource context (Show Abstract)

08:45 – 09:10 Frédéric Sicot Mouret (Airbus) & Julia Page Risueno (Airbus)
Bootstrapping InnerSource at Airbus (Show Abstract)
Gaël Selig (Amadeus IT Group)
How we manage >1500 git repo’s CI/CD with a full InnerSource solution (Show Abstract)
09:10 - 09:35 Isabel Drost-Fromm (Europace)
We are social beings after all - how distributed Open Source projects handle the need for in person trust building (Show Abstract)
Dirk Riehle (Univ. Erlangen)
When there is no alternative to InnerSource (Show Abstract)

09:35 – 10:05 Break
10:05 - 10:30 Yuki Hattori (GitHub)
Adopting InnerSource to maximize Developer Experience (Show Abstract)

Olivier Liechti (Avalia Systems)
Lessons learned: how to make most of Backstage when building your InnerSource Portal (Show Abstract)
10:30 - 10:55 Niall Maher (Marsh McLennan)
Leveraging scorecards to scale InnerSource (Show Abstract)

InnerSource Unconference Slot
Bring your own topic (Show Abstract)
10:55 – 11:20 Shanmugapriya Manoharan (Ikea)
Misconceptions about InnerSource ways of working: How can OSPO/ISPO help? (Show Abstract)
Chamindra de Silva (Citi)
The FinOS license generator and the need for Licensing in Financial Institutions (Show Abstract)
11:20 - 11:30 Wrap up & Event Close

Keynote speaker

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Mary Lynn Manns (Fearless Change)

Mary Lynn Manns, PhD is the co-author of two books (with Linda Rising), Fearless Change: Patterns for Introducing New Ideas, 2005 (also published in Japanese and Chinese) and More Fearless Change: Strategies for Making Your Ideas Happen, 2015. Mary Lynn has spent 25+ years gathering successful strategies from leaders of change and has given numerous presentations at events throughout the world and in many organizations that include Microsoft, Procter & Gamble, Avon, and Amazon. See

Speaker Bios

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Addie Girouard (Third Man Agency)

Addie, an accomplished communications and marketing professional with nearly two decades of experience spanning many industries, has garnered numerous accolades for her strategic leadership. Recognized for her ability to shape and elevate reputations on a global scale in fast-paced environments, Addie’s approach is characterized by innovation and synergy. She excels at fostering collaboration and simplifying complexity through the development of compelling narratives, consistently delivering tangible results. Addie’s unique skill set extends to making technical concepts accessible and relatable to a broader audience, a task she relishes. She possesses a remarkable talent for identifying and nurturing top talent within cross-functional teams, demonstrating her visionary perspective and an operator’s mindset. As a seasoned coach, Addie empowers business leaders to unlock their teams' full potential and achieve their next business objectives. Notably, she is also a dynamic speaker and spokesperson, captivating audiences with powerful messages. Her expertise and accomplishments in the field make her a notable figure in the world of communications and marketing.

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Brittany Istenes (Fannie Mae)

Brittany Istenes started off her career as an elementary school educator which then led to a path of technology. Brittany is currently co-chair in the FINOS Open Source Readiness SIG and FINOS InnerSource SIG, has led OS advisory councils, open source ambassador programs, open source contributions, InnerSource initiatives as well as all the gray areas in between at scale within large companies. At Fannie Mae, Brittany is sharing these best practices for OSS and InnerSource with the teams across the enterprise and FINTECH. Her main goal is to create a frictionless developer/centric environment where not only are we creating the best products for our customers, but doing so in a way that is better, faster, secure and innovative.

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Chamindra de Silva (Citibank)

Chamindra de Silva is long time Open Source advocate and contributor originally from Sri Lanka and was active promoting Free and Open Source with FSF and OSI. He has contributions to Apache, Google Summer of Code, UNDP IOSN networks. Open Source projects he has lead have been awarded from SourceForge and Free Software Foundation in the past particularly for his work in the Humanitarian Open Source Domain. He is presently working in Citi in London being the InnerSource Project Manager and Solution Architect for some of the leading InnerSource projects in the organization and is member of the InnerSource governance program. He is also a co-lead of the InnerSource SIG in FinOS (Linux Foundation) working on a InnerSource license generator for Financial Institutions He has published articles and papers in CACM, IEEE, IDRC, UNDP, UN ESCAP and CMI. In his spare time he enjoys archery, scouting and cycling.

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Clare Dillon (University of Galway)

Clare Dillon is a PhD candidate with the University of Galway, Ireland, researching concepts of code ownership in InnerSource. Clare has also worked with the global community of Open Source Program Offices in university and research institutions since 2020. Previously, Clare was the Executive Director of InnerSource Commons, the world’s largest community of InnerSource practitioners. Before that, Clare was a member of the Microsoft Ireland Leadership Team, heading up their Developer Evangelism and Experience Group. Clare is a qualified coach and frequently speaks at international conferences and corporate events on topics relating to the open collaboration and future of work.

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Danese Cooper (InnerSource Commons)

Danese Cooper is the founder of InnerSource Commons. She is a long term open source advocate, having previously served as the of head of open source software at PayPal, CTO of the Wikimedia Foundation, chief open source evangelist for Sun, and senior director of open source strategies for Intel. Danese was also the inaugural chairperson of the Node.js Foundation. She concentrates on creating healthy open source communities and has served on the boards of Drupal Association, the Open Source Initiative, the Open Source Hardware Association, and she’s advised Mozilla and the Apache Software Foundation. Danese also runs a successful open source consultancy that counts the Bill & Melinda Gates Foundation, the SETI Institute, Harris, and Numenta as clients. She’s been known to knit through meetings.

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Daniel Izquierdo Cortázar (Bitergia)

Daniel Izquierdo Cortázar is a researcher and one of the founders of Bitergia, a company that provides software analytics for open and InnerSource ecosystems. Currently holding the position of Chief Executive Officer, he is focused on the quality of the data, research of new metrics, analysis and studies of interest for Bitergia customers via data mining and processing. Izquierdo Cortázar earned a PhD in free software engineering from the Universidad Rey Juan Carlos in Madrid in 2012 focused on the analysis of buggy developers activity patterns in the Mozilla community. He is in an active contributor and board member of CHAOSS (Community Health Analytics for Open Source Software). He is an active member and President at the InnerSource Commons Foundation.

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David Jacques (Comcast)

David Jacques is a Principal Software Engineer at Comcast focusing on Developer Experience. A long time contributor to internal operations platforms, his current role involves both integrating existing solutions into and developing new solutions for Comcast’s developer portal and serving as a Developer Advocate for the portal.

Dirk Riehl

Dirk Riehle (Univ. Erlangen)

Dirk Riehle is a professor of computer science at University of Erlangen. He is also the CEO of Bayave GmbH, his consulting firm, and chief scientist of EDITIVE, one of the startups born out of his research. His work helps companies succeed in and through software, with a specialization in open source, inner source, and product strategy. Before joining academia, Prof. Riehle led the open source research group at SAP Labs in Palo Alto, California (Silicon Valley). He also worked for software startups and large corporations in Boston, MA and Zurich, Switzerland, as a software developer, architect, and engineering manager. Riehle holds a Ph.D. in computer science from ETH Zurich and an M.B.A. from Stanford Graduate School of Business. He welcomes email at, blogs at, and tweets as @dirkriehle.

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Emmanuel Orozco Colin (ADEO)

Developer advocate @leroi merlin. Currently training teams around the globe on how to implement Inner Source. Music and dog lover.

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Eric Keller (Roche)

Over 15 years of experience in Linux, Open Source, and DevOps, Eric is driving change as the InnerSource and Open Source office Technology Lead. With a passion for enabling software engineering. He champions cultural transformation with collaborative tooling to achieve business agility. He is being a transformative force reshaping the way organizations approach software engineering with a commitment to open source, coupled with his ability to inspire cultural change.

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Frédéric Sicot Mouret (Airbus)

Frédéric Sicot joined Airbus in 2017 as a Data Scientist. In previous life, he worked 10 years as a high-performance computing researcher in aerodynamics applications. Then he switched to data science and artificial intelligence for precision agriculture. At Airbus, beyond his duty as data scientist, he has built a community of Open- and InnerSource enthusiasts and eventually got the institution buy-in to create an Open Software Program Office.

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Gaël Selig (Amadeus IT Group)

Gaël Selig is a Principal Engineer at Amadeus, helping to shape the future of travel for more than 10 years. Author of the first InnerSource White Paper in the company, he is promoting the practice internally. Gaël has 15 years of experience in various IT fields, including numerical simulation, Java development, CI/CD, security, data, and cloud technologies. He lives near Nice, in the south of France. When not enjoying the epic sea view from the office, he likes hiking, cooking, and traveling.

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Gale McCommons (Comcast)

With over a decade of experience in technology, including the last four years dedicated to the open source ecosystem, Gale has established herself as a leading expert in the field. She extends her expertise to open source compliance, business operations, M&A, and threat and vulnerability management. During her two-year tenure at the Linux Foundation, Gale made significant contributions to the open source community by managing operations for various open source foundations. Furthermore, Gale is passionate about mentoring and helping others grow their careers, reflecting her commitment to nurturing the next generation of technology professionals. Her insights and leadership in open source technology make her a valuable asset in driving innovation, collaboration, and personal development.

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Georg Grütter (Bosch)

Georg Grütter is a passionate software developer and open collaboration enthusiast. He co-founded the InnerSource program at Bosch in 2009 as well as the InnerSource Commons Foundation in 2020, where he currently serves as a member of the board of directors. Georg lives in Bonn, Germany, is an avid cyclist, chocolate lover and spends too much time in his basement building things.

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Guilherme Dellagustin (SAP SE)

I’m a former software developer (still one occasionally and at heart) and now I work as InnerSource Officer at SAP. In this role I combine my passion for Open Source, knowledge sharing and continuous improvement to drive the adoption of InnerSource in the company and also collaborate with InnerSource practitioners on InnerSource Commons (where I’m now a member, hooray!).

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Hans Kristian Flaatten (Norwegian Labour and Welfare Administration (NAV))

Hans Kristian Flaatten is part of the Platform Engineering team at the Norwegian Labour and Welfare Administration (NAV) responsible for the NAIS platform. Previously Principal Consultant and DevOps Practice Lead for TietoEVRY where I drove culture and competency building for DevOps, Site Reliability Engineering (SRE) and Cloud Native practices internally and for customers in public government, telecom, banking and insurance sectors. Open Source, DevOps, and Cloud Native evangelist. Member of the Node.js Foundation where I manage test and release of official Node.js versions and the official Docker Image for Node.js with 10M+ downloads. Organiser of DevOps Bergen, Bergen NoSQL User Groups, and Co-Organiser of the DevOps Days Oslo Conference. I speak at various other local, and national, user groups and conferences on Open Source, open data, Cloud Native, and other new and exciting technologies and practices.

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Isabel Drost-Fromm (Europace)

Isabel Drost-Fromm is Chair of the board of directors of the InnerSource Commons Foundation as well as (former board) member of the Apache Software Foundation. Interested in all things search and text mining with a thorough background in open source collaboration she is working at Europace AG as Open Source Strategist. True to the nature of people living in Berlin she loves giving friends a reason for a brief visit - as a result she co-founded and is still one of the creative heads behind Berlin Buzzwords, a tech conference on all things search, scale and storage and FOSS Backstage.

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Julia Page Risueno (Airbus)

Julia Page Risueno has over 3 years of experience at Airbus, currently serving as the Software Supply Chain & InnerSource Tech Lead. Based in Hamburg, Germany, Julia excels in web app development, data visualization, and KPI support. Her expertise extends to technologies like Jenkins, GitHub, and more. Prior to Airbus, Julia worked at the German Aerospace Center involving Semantic Web Technologies, full-stack software development, research dissemination, and project management.

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Jeff Bailey (Nike)

Jeff is a software development leader at Nike with 25+ years of experience building full-stack applications on numerous platforms to solve business problems. Jeff applies knowledge of several programming languages to deliver high-quality software solutions. With a continuous improvement mindset he focuses on leading software product development communities, boosting productivity, and automating almost everything. His work at Nike revolves around growing Communities of Practice, InnerSource, and evangelizing global adoption of Platform Engineering to drive efficiency.

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Jonathan Peck (GitHub)

Are you looking to understand the impact new technologies will have on your corporate strategy? Jon Peck manages GitHub’s Enterprise Advocacy team in the Americas, and meets regularly with exec-level audiences to familiarize them with GitHub’s view of the world, industry knowledge, and product offerings. Drawing on 25 years as a developer/architect, he loves to help organizations to define long-term modernization objectives, improve collaboration across organizational silos, and understand the role DevOps can play regardless of team size or maturity.

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Justin Gosses (Microsoft)

Justin is a senior program manager within Microsoft’s Open Source Program Office focused on providing Inner Source guidance to developers and data work that either delivers measurements of code collaboration across organizational boundaries or enables new developer experiences that reduce developer toil. Before joining Microsoft, Justin worked as a NASA contractor, where he held various roles in program management, data science, and software engineering. His work centered on two main objectives: reducing friction in open source, inner source, and open data initiatives, and rapidly prototyping innovative data science solutions in collaboration with partner teams.

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Niall Maher (Marsh McLennan)

I’ve worked in nearly every corner of technology businesses: Lead Developer, Software Architect, Head of Product, CTO. Founder of Codú (Ireland’s biggest coding community) and now running InnerSource @ Marsh McLennan.

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Olivier Liechti (Avalia Systems)

Olivier is CTO at Avalia Systems. He has done extensive applied research on the human factors of software engineering and is now focused on DX. Until 2021, Olivier was full professor at the University of Applied Sciences Western Switzerland, where he created the Software Engineering research group. Before that, he was software architect at Sun Microsystems. Olivier holds a Ms.C. in Computer Science from Fribourg University (Switzerland) and a Ph.D. from Hiroshima University (Japan).

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Remy De Causemaker (Centers for Medicare & Medicaid Services, US Gov)

Remy DeCausemaker is the Open Source Lead for the Digital Service at the Centers for Medicare & Medicaid Services (CMS.) Remy helps developers, designers, and other contributors work with dedicated civil servants to create open and accessible healthcare technology projects, programs, and policy. Through his work with the Digital Service at CMS, Remy improves access to health Information, and grows communities of practice around Open Data, Open Standards, and Open Source code. Remy comes to CMS with over a decade of work at the frontier of Open Source Software. His career has included many firsts, including helping to launch the first academic minor in Open Source Software in the United States, at Rochester Institute of Technology. He was the first Open Source Community Manager of an American presidential campaign, the first Head of Open Source at Spotify, the second Open Source Program Manager at Twitter, the first Fedora Community Lead at Red Hat, and now serves as the nation’s first ever Open Source Lead at the Centers for Medicare & Medicaid Services.

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Russ Rutlege (InnerSource Commons)

Russ Rutledge is the Executive Director of the InnerSource Commons, a non-profit foundation dedicated to the teaching of InnerSource across the industry. Russ is a founding director of the foundation and has served in many leadership positions there. Russ has worked at several multi-national software companies and participated at all levels of InnerSource practice, both as individual contributor, director, and everywhere between. His drive and passion is to enable all software engineers worldwide to achieve incredible technical, business, and personal results via streamlined, collaborative, InnerSource process.

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Sebastian Spier (InnerSource Commons)

Over his 15 years journey in software development, Sebastian has worked as individual contributor, agile coach, team lead, product owner, and director of engineering. No matter the role or team, effective cross-team collaboration has been key for getting things done at organizations of any size. For Sebastian, InnerSource is more than just a concept – it’s a powerful enabler and a transformative teaching tool for fostering collaboration across teams. He firmly believes that it holds the key to enabling organizations to deliver exceptional value to their customers, cultivating a workforce that is not only more content but also highly engaged. In his vision, InnerSource is a pathway towards a more connected company. As a member of the InnerSource Commons Foundation, he is maintaining the collection of InnerSource Patterns. He is always looking for ways to help others to use these patterns at their org, as well as sharing their own experiences in the form of patterns.

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Shanmugapriya Manoharan (Ikea IT AB)

Shanmugapriya is an Open Source & InnerSource enthusiast, working as Engineering Advisor at Open Source Program Office (OSPO), IKEA IT AB. She has several years of experience in driving initiatives and projects including Open Source and InnerSource projects, while working in organizations like HPE and Dell Technologies. She specializes in Cloud technologies, Containerization, Virtualization and Enterprise Storage. She holds a Master’s degree in Software System and Bachelor’s degree in Computer Science and Engineering.

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Tom Sadler (BBC)

Tom Sadler is a Principal Software Engineer at the BBC, working with a number of teams on open source and InnerSource, and a regular speaker on collaborative practices. He also serves on the InnerSource Commons board as Director and Secretary.

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Tracy Buckner (Red Hat)

Tracy Buckner is a Senior Community Architect in Red Hat’s Open Source Program Office focusing on training and enablement. Tracy is passionate about open source practices, communities, and storytelling. She encourages opening silos to power stronger collaboration, communication, and innovation. Tracy has written articles for, an ebook entitled Building Communities of Practice, and has shared the impact of open communities at various Red Hat conferences and at KM World and IIBA Building Business Capabilities.

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Yuki Hattori (GitHub)

Yuki Hattori, an Architect at GitHub, brings hands-on expertise in DevOps and technical advisory for Enterprise clients. Beginning as a software engineer, Yuki’s journey progressed to Cloud Solution Architect at Microsoft for Azure, overseeing cloud architecture and DevOps. A catalyst for open-source culture within enterprise, He champions “InnerSource” adoption, even serving as a board member at the InnerSource Commons Foundation.

What is the InnerSource Commons?

The InnerSource Commons ( aka ISC is a consortium of representatives from over 500 companies and institutions. It utilizes open source methods to provide organizations pursuing inner sourcing a forum for discussing and improving the practice of InnerSource through the sharing of experiences (under the Chatham House Rule, creation and review of InnerSource patterns, and the open exchange of ideas.

Code of Conduct

All participants, vendors, and guests at InnerSource Commons events are required to abide by the code of conduct. All related conversations in the InnerSource Slack Channel will still be considered to fall under Chatham House Rules: information discussed can be shared but not attributed. Interested in getting involved? Email or join the conversation on the #innersourcecommons slack channel!