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S&P Global completes acquisition of blockchain security firm OpenZeppelin

S&P Global has completed its acquisition of blockchain security firm OpenZeppelin for an undisclosed sum, integrating smart contract security and onchain risk assessments into its ratings and analytics business.

S&P Global logo with red text beneath a black horizontal bar on a white background.
Image: @TheBlockCo

S&P Global has completed its acquisition of blockchain security firm OpenZeppelin for an undisclosed sum, according to The Block and a company announcement. The transaction, initially announced on September 17, 2026, expands the financial ratings firm's risk assessment capabilities into smart contracts, onchain technology, and digital asset markets.[2][3]

Founded in 2015, OpenZeppelin provides security audits and secure development tools, most notably its open-source smart contract libraries. The company's security team has completed more than 900 engagements and discovered over 10,000 vulnerabilities prior to production, while its contracts library has underpinned more than $38 trillion in transferred value across major stablecoins and tokenized funds.[2]

Following the acquisition, OpenZeppelin's open-source tools will remain free and publicly maintained, crypto.news reported. The company's security auditing and development services will continue operating under the same team and brand, supported by S&P Global's institutional distribution and market data. Crypto Briefing noted that the deal underscores the rising role of smart contract security when evaluating broader financial and operational risks.[1][4]

Key facts

  • S&P Global completed its acquisition of blockchain security firm OpenZeppelin for an undisclosed sum.
  • The transaction between S&P Global and OpenZeppelin was first announced on September 17, 2026.
  • OpenZeppelin was founded in 2015 and has conducted more than 900 security engagements, finding over 10,000 vulnerabilities prior to production.
  • OpenZeppelin Contracts has underpinned over $38 trillion in value transferred, including large stablecoins and tokenized funds.
  • OpenZeppelin's open-source tools will remain free and publicly maintained post-acquisition.
  • OpenZeppelin's security audits and development services will continue under the same team and brand, backed by S&P Global's market reach.

Sources · 4 sources

  1. CN

    crypto.news@cryptodotnewsPost on X ·

    JUST IN: S&P Global finalizes acquisition of blockchain security firm OpenZeppelin OpenZeppelin’s open-source tools will remain free and publicly maintained, while its security audits and development services continue under the same team and brand, now backed by S&P Global’s market data and institutional reach.

    Open source
  2. CB

    Crypto Briefing@Crypto_BriefingPost on X ·

    💥 NEW: S&P Global has completed its acquisition of OpenZeppelin, the smart contract security firm behind libraries securing many of the largest stablecoins and tokenized funds. https://t.co/gk9ofrJlQ9

    Open source
  3. TB

    The Block@TheBlockCoPost on X ·

    THE BLOCK: S&P Global has completed its acquisition of blockchain security firm OpenZeppelin for an undisclosed sum. The deal, first announced in September, expands S&P Global's risk assessment capabilities into smart contracts and onchain finance. https://t.co/FhZfvODwrr

    Open source
  4. CB

    Crypto BriefingArticle ·

    S&P Global completes acquisition of blockchain security firm OpenZeppelin S&P Global's acquisition of OpenZeppelin highlights the growing importance of smart contract security in assessing financial risks. The post S&P Global completes acquisition of blockchain security firm OpenZeppelin appeared first on Crypto Briefing .

    Open source