# S&P Global Buys OpenZeppelin, Putting a Ratings Firm Inside Smart-Contract Security

The acquired company's open-source contract libraries underpin more than $37 trillion in transferred value, including most large stablecoins and tokenized funds.

- Published: 2026-09-18T05:52:43.927Z
- Canonical: https://polylog.news/crypto/2026-09-18/s-p-global-buys-openzeppelin-putting-a-ratings-firm-inside-s
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CryptoSlate](https://cryptoslate.com/from-kaiko-to-openzeppelin-sp-global-is-quietly-preparing-for-markets-that-never-close/), [Polylog editors](https://polylog.news)

S&P Global agreed on September 17 to acquire OpenZeppelin, the smart-contract security firm whose open-source libraries sit beneath a large share of deployed token contracts. OpenZeppelin will keep operating under its own name as a standalo…

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