Launch Catch-Up — Transaction Completed October 26, 2026
S&P Global completed its acquisition of blockchain-security company OpenZeppelin on October 26, expanding its technology-risk assessment capabilities for digital assets.
The companies first announced the transaction September 17. The new development is the closing, rather than a new agreement to negotiate or a proposed acquisition awaiting completion.
Financial terms were not disclosed. S&P Global said it does not expect the transaction to materially affect its financial results.
OpenZeppelin will retain its name and operate as a separate business unit. Founder Demian Brener will continue leading it and report to S&P Global Ratings President Yann Le Pallec.
Founded in 2015, OpenZeppelin provides security assessments, development services and open-source smart-contract software. Brener said its Contracts library would remain free, open source and publicly maintained.
Smart contracts execute programmed rules on blockchains. The acquisition announcement concerns ownership and capabilities; it does not establish that any particular digital asset or contract is free of coding vulnerabilities or financial risk.
Sources: S&P Global, October 26: https://press.spglobal.com/2026-10-26-S-P-Global-Completes-Acquisition-of-OpenZeppelin