Arbitrum Founder House London: Apply Now to Launch Businesses Powering the Programmable Economy

Arbitrum Foundation

Jun 4, 2026 — 4 min read

Applications are now open for Founder House London, the next phase of Arbitrum's Open House global founder program.

Founder House is a three-day, in-person program in London for founders building serious onchain businesses on the Arbitrum Platform.

Apply Now To Founder House London

Running from July 10–12, 2026, selected teams will receive:

Opportunity to compete for $300K in prizes and grants
Mentorship from Robinhood Chain, AWS Cloud, Offchain, Arbitrum Foundation and industry leaders
Hands-on workshops covering the tools and infrastructure needed to launch and grow products onchain
Technical, product, go-to-market support

Founder House is designed for founders building the next generation of payments, tokenization, AI, DeFi, and privacy businesses in the programmable economy.

Why We're Supporting the next-gen of onchain businesses

The programmable economy is emerging.

Finance, payments, AI, privacy, and digital markets are becoming programmable as transactions, business processes, and financial products increasingly run on software.

As institutions and enterprises move onchain, a new generation of founders is building the businesses that will power this shift.

To support those founders, we launched Open House in May with a three-week online Buildathon designed to help early-stage teams accelerate product development, strengthen their technical foundations, connect with industry leaders, and win $115K in prizes.

Founder House is the next phase of that journey.

From July 10–12, selected teams + Buildathon winners will come together in London to receive direct mentorship from Robinhood Chain, AWS Cloud, Offchain, Arbitrum Foundation and industry leaders, refine their products and go-to-market strategies and compete for $300K in prizes and grants.

Our goal is simple: help founders turn ambitious ideas into successful businesses shaping the programmable economy.

Who Should Apply?

Founder House is intended for teams that already have a product, prototype, or clear business concept and are looking to accelerate development, refine go-to-market strategy, and prepare for going mainnet on the Arbitrum Platform.

We encourage applications from teams building across areas such as:

Stablecoins & Payments

Remittance applications
Merchant checkout systems
Payroll infrastructure
Payments applications

Tokenization & Real-World Assets

Tokenized yield products
RWA-backed lending platforms
Treasury and credit markets
Commodity exposure products

DeFi & Financial Infrastructure

AI-powered portfolio management
Structured yield strategies
Intent-based DeFi systems
Cross-protocol credit systems

AI & Agentic Finance

Automated DeFi strategies
Agent-powered treasury systems
Autonomous payment systems
Machine-to-machine commerce applications

Privacy

Private payments
Encrypted trading systems
Privacy-enabled financial products

Consumer Applications

Prediction market products
Social finance applications
Creator monetization platforms

Bonus Areas

We're especially excited to see teams building:

Rust, C, or C++ applications using Arbitrum Stylus
Trading systems leveraging Timeboost
WASM-native financial tooling
Crosschain liquidity infrastructure and applications

What Founders Can Expect

Day 1: Product & Technical Foundations

Teams will participate in hands-on workshops and fireside chats covering the infrastructure, tooling, and resources available across the Arbitrum ecosystem.

Founders will receive direct feedback from Robinhood Chain, AWS Cloud, Offchain, Arbitrum Foundation and industry leaders to help strengthen their product strategy, technical architecture, and execution plans.

Day 2: Growth, Distribution & Ecosystem Access

The second day focuses on turning products into businesses.

Teams will participate in sessions covering product-market fit, go-to-market strategy, distribution, growth and ecosystem alignment.

Day 3: Demo Sessions with $300K in prizes and grants

Selected winners will get the opportunity to pitch their business to the Arbitrum Foundation and Offchain team, as well as our industry-leading sponsors such as Robinhood Chain and AWS.

Winning teams will also receive an invitation to join Arbitrum’s 8-week Mentorship Program, providing continued support as they scale their products and businesses in the programmable economy.

$300K in Prizes & Grants

Founder House London will award $300,000 in milestone-based prizes and grants across multiple tracks designed to support founders building the next generation of businesses on the Arbitrum Platform.

General Category - $120K

The top three teams at Founder House London will receive:

1st Place - $60K USDC
2nd Place - $40K USDC
3rd Place - $20K USDC

At least one of the top three winners will be selected from projects building on the Robinhood Chain.

Robinhood Chain Founder-in-Residence - $60K

A dedicated award for an outstanding team building exclusively on the Robinhood Chain.

Robinhood Chain Innovation Award - $30K

Awarded to a project demonstrating exceptional innovation on the Robinhood Chain.

Best Agentic Project - $20K

Reserved for projects building AI-powered and agentic applications on Arbitrum and Robinhood Chain.

The top three teams in this category will share $20K in prizes, with at least one winning project building on the Robinhood Chain.

Additional Grants - $70K

The Arbitrum Foundation has reserved an additional $70K in grants for selected teams demonstrating strong potential and ecosystem alignment.

Milestone-Based Funding

For most tracks, a portion of the prize funding will be distributed upfront, with the remainder tied to development milestones designed to support continued execution after Founder House concludes.

Apply Now

Applications for Founder House London are open.

Join us in London from July 10-12 and build alongside founders shaping the next generation of businesses in the programmable economy.

Applications close on June 25, 2026. Entry to the event is subject to T&Cs on the registration page. Let’s shape the programmable economy together.

Apply Now!