S&P Global agrees to buy OpenZeppelin to boost onchain security services
S&P Global announces purchase of OpenZeppelin
Financial data company S&P Global has agreed to acquire OpenZeppelin, a firm that provides security services for smart contracts. The companies announced the deal on Thursday, September 17, 2026.
OpenZeppelin will continue to operate as a standalone business unit under the S&P Global umbrella. The company's CEO, Demian Brener, will remain in charge of the business and will report to Yann Le Pallec, president of S&P Global Ratings.
Key deal details
- The financial terms of the acquisition were not disclosed.
- The deal is subject to closing conditions.
- S&P Global stated the transaction is not expected to have a material impact on its financial results.
- OpenZeppelin was founded in 2015 and combines onchain security assessments with secure development services.
What the companies said
In a press release, S&P Global said the deal expands its risk assessment capabilities into the onchain technology-risk layer. OpenZeppelin CEO Demian Brener noted that the firm's standards and technology power infrastructure for major stablecoins, tokenized funds, and decentralized finance (DeFi) protocols. He added that the partnership will allow this foundation to reach more organizations entering the market.
Yann Le Pallec, S&P Global Ratings President, stated that S&P Global's digital assets strategy focuses on bringing trusted data and transparent risk assessment to markets moving onchain. He said OpenZeppelin's expertise will complement S&P Global's smart contract risk assessment capabilities, helping traditional financial institutions and DeFi-native companies build confidence in this new environment.
Why it matters
OpenZeppelin claims its open-source smart contract libraries underpin over $37 trillion in value transferred. This includes the vast majority of the largest stablecoins and tokenized funds. The firm has conducted more than 900 security engagements for digital asset protocols and institutions. This acquisition links a major traditional financial data provider with a key creator of blockchain security tools.