S&P Global to Acquire OpenZeppelin to Expand Onchain Risk Assessment

S&P Global has agreed to acquire OpenZeppelin, the smart-contract security firm behind an open-source library used across stablecoins and tokenized funds. The deal terms were not disclosed, and OpenZeppelin will continue as a separate unit led by CEO Demian Brener.

Deal Details and Leadership

S&P Global said Thursday it will buy OpenZeppelin, which was founded in 2015. OpenZeppelin will keep its name and operate as a standalone business led by co-founder and chief executive Demian Brener, reporting to Le Pallec. The transaction is subject to closing conditions and is not expected to have a material impact on S&P Global’s financial results.

Library Used in $37 Trillion of Transfers

OpenZeppelin’s open-source smart contract library has supported contracts that moved more than $37 trillion over time, S&P Global said. The figure reflects cumulative value transferred through contracts using the library, not assets managed or held by OpenZeppelin.

Expanding Ratings Beyond Credit and Reserves

S&P Global framed the acquisition as a way to assess risks that conventional credit-focused ratings may miss. Even projects with strong reserves or credit profiles can fail due to smart contract flaws. S&P’s stated goal is to help banks and asset managers evaluate technology risk before scaling use of onchain products such as stablecoins, tokenized funds, and decentralized finance (DeFi).

Security Work and Client Demand Signals

OpenZeppelin provides onchain security assessments and secure development services, alongside its library. S&P Global said OpenZeppelin has conducted more than 900 security engagements and surfaced over 10,000 vulnerabilities before code reached production.

Recent S&P Moves in Crypto Data and Indexing

The purchase follows a run of digital-asset investments and products by S&P Global. On Monday, it led a strategic investment extending crypto data firm Kaiko’s Series B to $110 million, joined by BNP Paribas, Nasdaq Ventures, Coinbase Ventures and Royal Bank of Canada. Earlier in September, S&P Dow Jones Indices and Kaiko launched a co-branded digital asset index suite, and in March they tokenized the iBoxx U.S. Treasuries Index.

Why This Matters

For S&P Global, the acquisition shifts part of its digital asset coverage from evaluating entities and financial strength to evaluating the code that powers onchain products. That change affects how institutions may approach stablecoins, tokenized funds, and DeFi at scale, where smart contract risk can be the determining factor.