LONDON, July 15, 2026: The Arbitrum Foundation wrapped its three-day Founder House London event on July 12, distributing $300,000 in prizes across nine prize-winning slots, plus five honorable mentions. A further $70,000 is reserved for teams that hit post-event development milestones, bringing the potential total to $370,000. The event drew more than 490 registrations, admitted 140 builders for the in-person sprint, and followed a separate online buildathon phase that saw 782 participants submit 278 projects across decentralized finance (DeFi), real-world asset tokenization (RWA), AI, payments, and privacy.

The top general prize, worth $60,000, went to Liquida, a project building infrastructure to use tokenized UK government bonds as on-chain collateral. That win arrived the day after the event closed, when HM Treasury announced a tokenization taskforce including BlackRock, Goldman Sachs, JPMorgan, and Morgan Stanley, with a focus on wholesale tokenized markets and a live repo trial targeted for spring 2027. Liquida is now positioned in front of an institutional push that did not exist publicly when the competition began.

Second place in the general track ($40,000) went to The Risk Protocol, which is building on-chain risk transfer tools aimed at institutional users. Third place was split equally between EdenFi, a multicurrency payments platform serving Africa and its diaspora, and Obolos, which provides programmable equity infrastructure for early-stage startups. Each received $20,000.

The Robinhood Chain connection runs through the entire event. Robinhood Chain is an Ethereum layer-2 network built on the Arbitrum tech stack. It launched its public mainnet on July 1, eleven days before the London event closed. Within its first two weeks, the chain accumulated roughly $600 million in total value secured and recorded over $808 million in single-day decentralized exchange volume, ranking it among the three largest chains in crypto by that metric at peak. Robinhood committed $1 million to Arbitrum's 2026 Open House program overall. The Founder-in-Residence prize for the Robinhood Chain track, worth $60,000, went to Saffron, a project building a fixed-yield layer on top of the Uniswap protocol. Saffron's prize is seed-level capital tied to building on Robinhood Chain specifically, reflecting that track's focus on projects that will live within Robinhood Chain's ecosystem rather than on Arbitrum broadly. An additional $30,000 Innovation Award on the same track went to Agama Finance, which is developing yield infrastructure for tokenized stocks. Under the revenue arrangement between Robinhood Chain and Arbitrum, 10 percent of net revenue from the chain flows back to the Arbitrum ecosystem.

For African readers, EdenFi's third-place finish is the most concrete outcome from this event. The platform is a non-custodial smart wallet, built on ERC-4337 account abstraction (a technical standard that removes the need for users to manage cryptographic seed phrases), designed to let senders in the UK move USDC stablecoins to recipients in Nigeria, Kenya, and South Africa, where funds settle in local currency within minutes. CEO Ezra Akran has framed the goal plainly: "We're here to make global finance local for everyone. One of the most important ways is making Web3 invisible to consumers." EdenFi already carries backing from Circle, the issuer of USDC. The milestone-based grant structure means its $20,000 prize is tied to delivery benchmarks rather than awarded in a lump sum, which reduces the risk of capital disappearing before a product ships. Sub-Saharan Africa received more than $205 billion in on-chain value between July 2024 and June 2025, a 52 percent year-over-year increase according to Chainalysis data, yet localized DeFi infrastructure covering naira, shilling, and rand corridors remains scarce. The London cohort also carried relevance for South Asia: Agama Finance's yield layer for tokenized stocks speaks directly to retail investors in markets such as India and Pakistan, where mobile-first financial access has historically outpaced formal brokerage infrastructure and where remittance corridors overlap with those EdenFi targets.

The agentic finance track (projects using AI agents to automate financial decisions) awarded $10,000 to AlphaGrid for decentralized prop trading, $6,000 to CanHav Research for DeFi navigation using encrypted agent identities, and $4,000 to ReineiraOS for an accountability layer for AI agents. Honorable mentions went to Clearstone, Xeno Money, Tortuga, Verus, and Launchboard. Sponsors included Robinhood Chain, Offchain Labs, AWS, Fhenix, Alchemy, OpenZeppelin, GMX, Dune Analytics, ZeroDev, Re7 Capital, Entropy Advisors, and CFIT UK, the UK government-linked Centre for Finance, Innovation and Technology.

London is the second stop in Arbitrum's 2026 Open House program. The first, held in New York in late March, distributed $340,000 and drew 473 applications. The total prize pool across the full program stands at $1.8 million. The Arbitrum Foundation has framed the Founder House series as a source of new financial primitives, signaling that standout projects may be evaluated for deeper integration into Arbitrum's broader infrastructure stack rather than remaining standalone applications. Arbitrum's H1 2026 figures show 474 million transactions added in the first six months, bringing lifetime totals above 2.7 billion. The network now tracks 2,056 tokenized real-world assets, the most of any layer-2 chain. Despite that activity, the ARB token sits near $0.089 as of July 14, well below its peak but still approximately 27 percent above its all-time low of around $0.07, with a market cap around $572 million. The 13.8 percent weekly gain suggests some price recovery, but the gap between network growth and token valuation remains wide. Future Founder House locations for 2026 have not been announced, though the program's cross-continental design leaves open the possibility of events in other global markets.