S&P Global Completes Acquisition of Onchain Security Firm OpenZeppelin

Odaily reports: S&P Global has announced the completion of its acquisition of onchain security firm OpenZeppelin. The deal was first announced on September 17, 2026, with specific financial terms not disclosed. S&P Global stated that the acquisition will complement its digital asset risk assessment business, helping traditional financial institutions and onchain financial companies assess smart contract and underlying technology risks. Founded in 2015, OpenZeppelin provides smart contract security audits, secure development services, and open-source contract libraries. Its security team has completed more than 900 audit projects and identified over 10,000 vulnerabilities before product launches; the OpenZeppelin Contracts open-source smart contract library has supported cumulative value transfers exceeding $38 trillion, involving multiple major stablecoins and tokenized funds. Following the acquisition, OpenZeppelin will continue to operate as an independent business unit, with founder Demian Brener remaining in place and reporting to Yann Le Pallec, President of S&P Global Ratings. OpenZeppelin Contracts will remain open-source, free, and publicly maintained. S&P Global believes that as more financial assets and capital market operations move onchain, smart contract and underlying technology risk assessment will become increasingly important. The acquisition aims to combine OpenZeppelin's onchain security technology with S&P Global's institutional client network and global distribution capabilities to expand its digital asset risk assessment services.