Osero

Osero is a stablecoin yield infrastructure startup designed to unlock yield opportunities for both end-users and institutions within the decentralized finance (DeFi) sector. The company was incubated by Stablewatch, a stablecoin yield data and risk advisory platform, in partnership with Soter Labs. Osero was founded by Piotr Saczuk, who also founded the incubating firm Stablewatch. Osero closed a $13.5 million funding round in March 2026, structured as a Simple Agreement for Future Tokens (SAFT). The round was co-led by Sky Ecosystem (formerly MakerDAO) and Plasma, a Layer 1 blockchain developer. The syndicate of investors also included RedStone, The Rollup, Kairos Research, and prominent angel investors such as Maple co-founder Joe Flanagan and USDT0 co-founder Lorenzo Romagnoli. This funding highlights strong market interest in the stablecoin yield market, which has a total value exceeding $300 billion. Osero's business model is centered on a three-pronged product strategy aimed at integrating Sky Ecosystem's USDS stablecoin and its savings rate into various platforms. The first product, 'Osero Earn', is an infrastructure solution that allows digital wallets, neobanks, and exchanges to embed stablecoin yield services into their own interfaces with minimal code. The second, 'Osero App', will provide retail and institutional users with direct access to stablecoin savings rates across different chains. The third, 'Osero Foundry', is a platform for asset managers and structured product providers to tokenize and bring traditional yield products on-chain. To ensure stability and protect users, Osero has allocated $10 million of its raised capital to serve as a reserve buffer, with each deployment undergoing a risk assessment process inspired by Basel III banking regulations. Keywords: stablecoin yield, DeFi infrastructure, Piotr Saczuk, Sky Ecosystem, USDS, Osero Earn, Osero Foundry, institutional crypto, tokenization, decentralized finance, crypto yield, digital assets, blockchain finance, SAFT, Plasma, Stablewatch, on-chain products, asset management, risk management, crypto savings