Arbitrum Open House - Singapore 🇸🇬
Arbitrum Open House - Singapore 🇸🇬
Arbitrum Open House 2026, sponsored by Robinhood Chain, is a global builder initiative bringing together high-potential founders and teams building the next generation of businesses on Arbitrum.
Following two high-impact editions in New York City and London, which engaged 2160 builders across our online and in-person activations and received 177 project submissions in New York and 273 in London, we're bringing the third edition of Open House to Singapore at the heart of one of the world's most active regions for founders, developers, and emerging onchain startups.
Open House Singapore will begin with a global online Buildathon from September 14 to October 4, followed by Arbitrum Founder House, an application-only, three-day, in-person experience designed for teams already building on Arbitrum and looking to accelerate execution, validate their product direction, and deepen their ecosystem connections.
📅 Online Buildathon: September 14–October 4, 2026
📅 Founder House: October 23–25, 2026
📍 Singapore
Please note: This Luma form is exclusively for applications to the in-person Founder House in Singapore.
To participate in the online Buildathon, please apply separately here.
The Buildathon and Founder House have independent application processes. Founders may apply to either program or both. All Buildathon winners will receive a guaranteed spot at the in-person Founder House in Singapore.
About Founder House
Founder House is built for founders and teams who already have an existing product, prototype, or business and are actively building.
Selected teams will spend three focused days alongside fellow founders, ecosystem leaders, and mentors working to ship meaningful product progress, validate key assumptions, and receive direct feedback from the Arbitrum ecosystem.
Our expectation is simple: arrive with an existing project, use Founder House to build and launch a meaningful new feature, validate your direction, and leave with stronger momentum than when you arrived.
Prize Tracks
Founder House participants will have access to $300K in prizes and grants designed to support high-potential teams building on Arbitrum.
Prize opportunities include:
General Builder Track for standout teams building innovative products on Arbitrum
Robinhood Chain Awards for teams building and innovating on Robinhood Chain
Promising Products Track for up-and-coming products entering frontier areas such as AI agents, new financial primitives, and more
Ecosystem Grants for teams demonstrating strong potential and ecosystem alignment
Most prize tracks include milestone-based funding designed to support continued execution beyond Founder House. The Promising Products Track is evaluated separately.
What We're Looking For
We're looking for founders who are already building products that can meaningfully leverage Arbitrum and are ready to accelerate their growth.
We are particularly excited to meet teams building across areas such as:
Stablecoins & Payments
Tokenization & Real-World Assets
DeFi & Financial Infrastructure
AI & Agentic Finance
Privacy-Preserving Applications
Consumer Crypto Products
Developer Tooling & Infrastructure
We're also excited to support teams building across emerging opportunities in the programmable economy.
These are examples of the types of projects we'd like to support—we are not asking founders to start new projects specifically for Founder House. We encourage teams already building in these categories to apply.
Both solo founders and teams are welcome to apply.
What to Expect
Direct access to and feedback from the Arbitrum Foundation, Offchain Labs, Open House sponsors like Robinhood Chain, and other ecosystem partners
Product, technical, go-to-market, and fundraising guidance
Hands-on workshops covering the tools and infrastructure needed to build and scale on Arbitrum
Dedicated time to build alongside high-quality teams
Opportunities to connect with investors, partners, and ecosystem leaders
Important Information
This Luma form is exclusively for applications to the in-person Founder House in Singapore
Buildathon applications must be submitted separately here (TBA)
Founders may apply to the Buildathon, Founder House, or both
Founder House applications are reviewed on a rolling basis
Participation is limited and highly curated
Selection is based on product quality, execution potential, and ecosystem alignment
Event logistics, meals, swag, and on-site support will be provided to accepted Founder House participants
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.