Arbitrum is expanding its support for onchain startups through a new founder-focused initiative in Singapore.
The program, launched in collaboration with Robinhood Chain, aims to help builders accelerate product development while competing for up to $300,000 in grants and prizes.
Arbitrum has opened applications for Founder House Singapore, a three-day in-person builder program designed for teams developing products on Arbitrum One and Robinhood Chain.
The initiative forms part of the broader Open House program, which supports founders building the next generation of onchain businesses.
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Founder House Singapore Applications Now Open
According to a post shared by Arbitrum Developers on X, applications are now open for Founder House Singapore, giving founders an opportunity to work alongside ecosystem experts and refine their products before launch.
According to the official Founder House announcement, the event will take place from October 23 to October 25 in Singapore following a global online Buildathon scheduled from September 14 to October 4.
The program is targeted at founders who already have a product, prototype, or early-stage business and are looking to strengthen their market strategy and product execution.
The Arbitrum Foundation said participating teams will receive support across product development, technical infrastructure, go-to-market planning, and fundraising.
Builders will also have opportunities to connect with investors, ecosystem partners, and other founders throughout the program.
The announcement encourages founders to “come with an existing project” and use the event to validate assumptions, launch meaningful features, and prepare products for wider adoption.
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Up to $300K in Grants and Prizes Available
A major highlight of Founder House Singapore is its funding pool. According to the official announcement, participants will be able to compete for up to $300,000 in grants and prizes across several builder tracks.
The opportunities include a General Builder Track, Robinhood Chain Founder-in-Residence Award, Robinhood Chain Innovation Award, ecosystem grants, and dedicated support for promising projects exploring areas such as AI agents and new financial primitives.
Most prize tracks include milestone-based funding intended to support teams beyond the event itself.
Arbitrum said it is particularly interested in projects focused on tokenization, real-world assets, AI-powered finance, DeFi, privacy-preserving applications, payments, consumer crypto products, and developer infrastructure.
Winning teams will also receive access to an eight-week mentorship program conducted in collaboration with Robinhood Chain.
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Robinhood Chain Partnership Adds Strategic Context
The collaboration with Robinhood Chain adds broader significance to the initiative. According to Arbitrum’s official materials, Robinhood Chain is built on the Arbitrum platform and forms part of a wider effort to bring financial applications and tokenized assets onchain. The chain has also committed funding toward Arbitrum’s Open House initiatives and developer ecosystem programs.
The Founder House program is therefore not only a start up accelerator but also part of a wider strategy to encourage new applications and products within the ARB ecosystem.
ARB Continues Expanding Its Builder Ecosystem
Founder House Singapore follows previous Open House editions in New York and London. According to the official event page, those programs engaged 2,160 builders and generated 177 project submissions in New York and 273 submissions in London.
ARB said the Singapore edition will focus on helping high-potential teams move from early development to launch-ready products while strengthening their connections across the ecosystem.
Through mentorship, funding opportunities, workshops, and direct access to ecosystem participants, the program is designed to support the next wave of builders entering the onchain economy.
According to the Arbitrum Foundation’s First Half 2026 Progress Update, Expansion Program license fees accounted for 35% of ArbitrumDAO income in July, the first month Robinhood Chain was live on mainnet.
With applications now open, Arbitrum and Robinhood Chain are looking to attract founders building across AI, payments, tokenization, DeFi, privacy, and other emerging sectors as they continue expanding their presence within the global blockchain ecosystem.
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