Startale Group Secures $63 Million Series A from SBI and Sony, Fueling Japan’s Web3 Infrastructure Surge

A major capital concentration signal has emerged in Japan's financial sector as Web3 infrastructure firm Startale Group closes a landmark $63 million Series A round. The investment, anchored by financial giant SBI Group and Sony Innovation Fund, directly positions the company at the epicenter of the nation's accelerating institutional push into tokenized securities and stablecoin payment rails. The nine-figure commitment from a mega-bank and a global entertainment conglomerate into a single Web3 stack underscores a strategic institutional pivot, with SBI's $50 million second close following an initial $13 million tranche from Sony.

The Deal: SBI’s $50 Million Bet on Onchain Finance

SBI Group’ssecond close is the dominant force in this round. SBI is not a passive financial sponsor, it is a strategic co-builder.

LATEST:Startale has closed a $63 million Series A backed by SBI Group and Sony Innovation Fund to scale its blockchain, stablecoin and consumer app operations in Japan. pic.twitter.com/cvq2OOI0SV

The two companies have already shipped Strium, a Layer 1 blockchain built specifically for tokenized securities and real-world asset trading, and JPYSC, described as the first trust bank-backed Japanese yen stablecoin.

SBI Chairman Yoshitaka Kitao said Startale “possesses extensive expertise in the field of on-chain integration and offers capabilities that complement those of the SBI Group,” framing the investment as vertical integration in digital finance rather than a passive bet. Startale also unveiled USDSC, a dollar-pegged stablecoin designed to enable fiat-to-crypto integration, onchain dividends, and yield distribution for both retail and institutional users.

Sony’s $13 million first close, announced previously, originated from the companies’ existing collaboration on Soneium — Sony’s Ethereum Layer 2 — developed through Sony Block Solutions Labs. Fresh capital will also fund an upgrade of the Startale App into a SuperApp running on Soneium, integrating tokenized assets, stablecoins, payments, Mini Apps, and social features into a single consumer interface.

CEO Sota Watanabe said the round “reflects the strong conviction our partners have in the vision we are building,” adding that the SBI collaboration will “accelerate the adoption of tokenized stocks, centered on Japanese equities and JPY stablecoin, this year.”

The Signal: Institutional Capital Finds Its Layer

This is not a DeFi protocol raise. This is infrastructure.

The capital is targeting the settlement layer — the part of the crypto stack that processes tokenized equities, stablecoin transfers, and RWA trades at institutional scale.

That is precisely where institutional demand is concentrating across global crypto markets right now. SBI’s distribution network of over 80 million customers gives Strium and JPYSC a deployment path that most Web3 infrastructure projects cannot access in a decade of organic growth.

The Sony angle is equally deliberate. Soneium gives Startale a live Ethereum Layer 2 with a global entertainment brand attached, a consumer distribution wedge for a product suite that would otherwise struggle to cross the mainstream threshold. The SuperApp model collapses the distance between a retail user and onchain asset management. That matters for adoption velocity.

Sony Innovation Fund has invested an additional $13 million in Startale Group, marking the first tranche of its Series A round. Startale is the co-developer of the Soneium blockchain. Previously, it received $3.5 million in seed funding from Sony in 2023 and a $3.5 million seed…

Regulatory tailwinds are real. Japan has moved faster than most jurisdictions on stablecoin legislation, and the broader regulatory framework supporting institutional crypto participation is maturing across major markets. Startale is building into that window.