S&P Global Announces Agreement to Acquire OpenZeppelin

NEW YORK, Sept. 17, 2026 /PRNewswire/ -- S&P Global (NYSE: SPGI) today announced it has entered into an agreement to acquire OpenZeppelin, the security standard for onchain finance. The transaction complements S&P Global's risk assessment and ecosystem development capabilities in digital asset markets, enhancing its ability to create the next generation of onchain security assessments, benchmarks, and deliver essential intelligence as capital markets transition onchain.

Founded in 2015, OpenZeppelin combines leading onchain security assessments and secure development services with one of the world's leading open-source smart contract libraries. OpenZeppelin Contracts underpin over $37 trillion in value transferred, including the vast majority of the largest stablecoins and tokenized funds, and the company has conducted 900+ security engagements for the protocols and institutions defining digital asset markets. OpenZeppelin's technology and expertise are trusted by decentralized finance (DeFi) and traditional financial institutions to secure the onchain infrastructure that increasingly underpins digital assets.

"Our digital assets strategy centers on bringing trusted data, benchmarks and transparent risk assessment to markets as they move onchain," said Yann Le Pallec, President, S&P Global Ratings. "As digital assets and tokenized markets continue to mature, OpenZeppelin's technology and expertise will complement our smart contract and onchain technology risk assessment capabilities, giving traditional financial institutions and DeFi-native companies alike the confidence to build and transact in this new environment."

The acquisition will expand S&P Global's risk assessment capabilities into the onchain technology-risk layer and as an extension to onchain financial products, while S&P Global's trusted brand, deep institutional relationships, and global distribution accelerate OpenZeppelin's reach into traditional finance.

"OpenZeppelin's standards, technology, and expertise already power the infrastructure behind the world's leading stablecoins, tokenized funds, DeFi protocols, and onchain markets," said Demian Brener, CEO, OpenZeppelin. "With S&P Global, that foundation reaches a broader set of organizations entering this market, as well as the blockchain networks and DeFi protocols gaining institutional adoption."

OpenZeppelin will continue to operate as its own business unit under the OpenZeppelin name. Brener will continue to lead the business, reporting to Yann Le Pallec, President, S&P Global Ratings.

The transaction is subject to closing conditions. Financial terms of the transaction were not disclosed. The transaction is not expected to have a material impact on the financial results of S&P Global.

Jefferies LLC is serving as financial advisor to S&P Global; Clifford Chance is acting as S&P Global's legal advisor. FT Partners is serving as exclusive financial and strategic advisor to OpenZeppelin; Cooley is acting as OpenZeppelin's legal advisor.

Russell Gerry S&P Global +44 20 7176 3569 [email protected]

Farhan HusainS&P Global +1 (347) 213 0065 [email protected]

S&P Global (NYSE: SPGI) enables businesses, governments, and individuals with trusted data, expertise and technology to make decisions with conviction. We are Advancing Essential Intelligence through world-leading benchmarks, data, and insights that customers need in order to plan confidently, act decisively and thrive in a rapidly changing global landscape.

From helping our customers assess new investments across the capital and commodities markets to navigating the energy expansion, acceleration of artificial intelligence, and evolution of public and private markets, we enable the world's leading organizations to unlock opportunities, solve challenges and plan for tomorrow – today. Learn more at www.spglobal.com.

OpenZeppelin is the security standard for onchain finance. Since 2015, the company has set the bar for blockchain and smart contract security through the industry-standard OpenZeppelin Contracts library, behind $37 trillion in value transferred, and 900+ security engagements that have surfaced 10,000+ vulnerabilities before production. OpenZeppelin secures the world's leading blockchain networks, DeFi protocols, institutions, and enterprises globally. Learn more at www.openzeppelin.com.

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Forward-looking statements are subject to inherent risks and uncertainties. Factors that could cause actual results to differ materially from those expressed or implied in forward-looking statements include, among other things:

The factors noted above are not exhaustive. The Company and its subsidiaries operate in a dynamic business environment in which new risks emerge frequently. Accordingly, the Company cautions readers not to place undue reliance on any forward-looking statements, which speak only as of the dates on which they are made. The Company undertakes no obligation to update or revise any forward-looking statement to reflect events or circumstances arising after the date on which it is made, except as required by applicable law. Further information about the Company's businesses, including information about factors that could materially affect its results of operations and financial condition, is contained in the Company's filings with the SEC, including Item 1A, Risk Factors in our most recently filed Annual Report on Form 10-K.