InnerSource Summit 2025 - Yokohama

Imagine a workplace where developers don’t need to reinvent the wheel every sprint. Where teams actively share their best work, and knowledge flows seamlessly across departments. This is the promise of InnerSource — a way of working that helps organizations collaborate more effectively, innovate faster, and build software that benefits everyone.

The impact speaks for itself: some organizations adopting InnerSource have reported productivity improvements of up to 87% — a testament to what’s possible when people choose to collaborate rather than compete. 🚀

At the centre of this movement is InnerSource Commons (ISC): a global community dedicated to helping individuals and organizations make collaboration practical, sustainable, and successful.

This special 10-year anniversary event is more than just a conference:

🌟 Discover real stories from teams that have transformed how they work

🛠️ Learn practical techniques from experienced InnerSource practitioners

💡 Share your own successes and challenges with peers who understand

🤝 Build meaningful connections with others passionate about improving software development

Whether you’re a developer already practicing InnerSource, a manager aiming to break down silos, or someone exploring new ways to foster collaboration — you’ll find valuable insights and a welcoming community here.

Join us in Yokohama this November to celebrate how far we’ve come — and to look ahead at what we can achieve together. 🌍✨

You’ll be joining us for the Yokohama segment of our 24-hour global celebration of all things InnerSource — and we’re excited to see you there! 🇯🇵✨

Although you will be attending in Yokohama, your ticket also gives you full access to the entire 24-hour global event online, so you can catch talks and sessions happening in Berlin, New York, and beyond. 🌍💻

We’re excited to offer two ticket options for InnerSource Summit 2025 — choose the one that fits you best and join us for this special 10-year celebration!

✨ Community Ticket (free) includes:

• Access to all sessions in Yokohama
• Full access to online talks during the 24-hour global event

🌱 Community Ticket with T-shirt ($35) includes:

• Access to all sessions in Yokohama
• Full access to the online program
• Our commemorative InnerSource Summit 2025 T-shirt

After you place your order, full details on how to access the summit — in person and online — will be sent to you ahead of the event.

We look forward to welcoming you! 🌍🎉

Why sponsor InnerSource Summit 2025?

• Connect with the InnerSource community across three continents

• Engage with practitioners, leaders, and enthusiasts both in-person and via livestream

• Position your brand at the center of InnerSource innovation

• Benefit from fair pricing with exceptional ROI potential

This is your chance to support and connect with the community that's been driving InnerSource adoption for a decade!

Interested in sponsorship opportunities? Contact Addie at InnerSourceCommons.org to learn more about how your organization can participate in this global celebration.

Formal invoices and receipts can also be provided for sponsors.

The full agenda will be shared as it is confirmed.Stay tuned for updates on our website!

Please note: this event is guided by our Code of Conduct, which you can read here: https://innersourcecommons.org/about/codeofconduct/

Host or Publisher InnerSource Commons