Arbitrum Open House — New York 🇺🇸
Open to Everyone. Built for Everyone.
Arbitrum Open House is back and this time, we’re landing in New York.
Open House is Arbitrum’s global builder program designed to bring together developers, founders, and ecosystem contributors through an integrated experience comprising of an online buildathon, community meetups in US, and an in-person Founder House. Whether you’re already building on Arbitrum or exploring the ecosystem for the first time, Open House is your entry point to learn, ship, and connect.
About This Event
Open House New York is the second edition of Arbitrum Open House, following a successful inaugural run in India. The program culminates in a 4-day IRL Founder House, where selected builders come together to collaborate, ship real products, and learn directly from Arbitrum’s core teams and ecosystem partners.
This Luma form is for builders interested in participating in the IRL Founder House.
What to Expect
Across the OpenHouse journey, participants can expect:
Hands-on building with support from Arbitrum DevRel and ecosystem mentors
Workshops & office hours covering core Arbitrum tech, tooling, and best practices
High-signal networking with fellow builders, founders, and Arbitrum contributors
A focused environment to ship production-ready ideas, not just demos
A thoughtfully curated in-person experience designed to help you build, think, and collaborate deeply
Program Overview & Timeline
Online Buildathon
Announcement & Registrations Open: 22nd Dec 2025
Buildathon Dates: 29th Jan – 19th Feb 2026
Open to builders globally
Teams build and submit projects online
Prize Money: up to $30k for top three projects & up to $30k in grants post-event
Local Meetups
NYC Meetup: 22nd Jan 2026
Community-led meetups to connect builders ahead of the launch of Buildathon and Founder House.
IRL Founder House (New York)
IRL Registrations Open: 5th Jan 2026
IRL Registrations Close: 10th Feb 2026
Selected Builders Announced: 21st Feb 2026
Founder House Dates: 5th – 8th March 2026
Prize money: up to $70k for top three projects & up to $70k in grants post-event
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, 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.