Arbitrum Open House — NYC
Arbitrum Open House 2026 is a global builder experience touring across four cities (New York, Dubai, London, and Singapore) with $1.8m in prizes and bi-annual in-house Mentorship programs.
We’re kicking off our Founder House in one of the strongest builder ecosystems in the world: New York City. Whether you're just getting started or already deep in the stack, Open House is designed to meet you where you are and help you go further.
About This Event
Arbitrum Founder House is an application-only, in-person experience designed for teams building seriously on Arbitrum and looking to turn momentum into real execution. It comes with $270k in prizes and $70k in grants up for grabs for the winning projects.
If selected, you’ll join us in New York City from March 6 - 8, 2026 for a focused, high-touch program built around collaboration, mentorship, and shipping.
The Founder House is part of the same Open House journey, teams who participated in the Buildathon are fast-tracked, but applications are open to all eligible teams.
This Luma form is for builders interested in participating in the IRL Founder House.
What to Expect
Across the OpenHouse journey, participants can expect:
Direct access to the Arbitrum Foundation, Offchain Labs, and ecosystem mentors
Structured support around execution, GTM, and fundraising readinessDedicated time to build alongside other top teams
An environment built for focus, momentum, and real progress
Who Should Apply
Founders and early-stage teams exploring scalable onchain products
Developers building or interested in building on Arbitrum
Builders who value hands-on learning, collaboration, and shipping
Both solo builders and teams are welcome.
Important Information
Selected participants will receive full event details well in advance of the Founder House
Limited seats — applications will be reviewed based on quality, intent, and alignment with Arbitrum
Event logistics, swag, meals, and on-ground support will be provided
More details about the Open House program can be found here:
👉 https://openhouse.arbitrum.io/
Media Release
By attending, you grant the event organizer and its affiliates the right and permission to use and publish, in any media or format, for any lawful business purposes, your image, likeness, name, voice, and other identifying characteristics as captured at the event, without compensation or liability. Please refer to Arbitrum’s privacy policy for more details.