S&P Global (NYSE: SPGI) completed its acquisition of blockchain security firm OpenZeppelin on Oct. 26, closing the deal less than six weeks after it was first announced on Sept. 17.

For S&P Global, a company best known for its credit ratings, the deal folds crypto-native security expertise directly into an established risk-analysis business.

According to the company, OpenZeppelin’s open-source code supports more than $38 trillion in value transferred. S&P Global put the figure at over $37 trillion when the deal was disclosed in September.

A track record in smart-contract security

Founded in 2015, OpenZeppelin is a blockchain code auditor and the maintainer of OpenZeppelin Contracts. S&P Global said the firm’s security team has completed more than 900 engagements for protocols and institutions, with its reviews uncovering more than 10,000 vulnerabilities before code went into production.

Smart contracts are self-executing programs that hold and move funds on blockchains, which means a flaw in the code can translate directly into financial losses. That dynamic has made independent audits and widely used code libraries like OpenZeppelin Contracts a common part of building on-chain financial products.

The press release describes OpenZeppelin as the “security standard for onchain finance” and says its Contracts library backs many of the biggest stablecoins and tokenized funds.

Undisclosed terms, unchanged leadership

S&P Global did not disclose how much it paid for OpenZeppelin and said the transaction is not expected to have a material impact on its financial results. Clifford Chance and Jefferies LLC advised S&P Global, while FT Partners and Cooley advised OpenZeppelin.

OpenZeppelin founder Demian Brener continues to lead the business, which keeps its name and operates as a standalone unit reporting to Yann Le Pallec, head of S&P Global Ratings.

“Today OpenZeppelin begins its next chapter as part of S&P Global,” Brener said, adding that OpenZeppelin Contracts “remain open source, free and publicly maintained.” The pledge offers a concrete continuity marker for the developer community as the integration proceeds.

Taking risk checks on-chain

“Completing this acquisition is an important step for our digital assets strategy,” Le Pallec said. With the deal closed, S&P Global said it can expand risk assessments of the technology layer beneath on-chain financial products. OpenZeppelin, in turn, gains the backing of S&P Global’s brand, institutional relationships, and global distribution.

“As more of the financial system moves onchain, market participants need a clear view of the technology risk that sits beneath the assets they hold,” Le Pallec said. He added that OpenZeppelin’s expertise “is already foundational to that infrastructure.”

S&P Global said OpenZeppelin will help it develop the next generation of on-chain security assessments and benchmarks. The company has not specified a timeline or product format for those assessments, leaving their eventual shape the key detail to watch as the integration moves forward.

Broader digital-assets push

The closing comes during a busy stretch for S&P Global’s digital-assets strategy. In September, the same month the OpenZeppelin deal was announced, the company led a $110 million Series B round for Kaiko, a crypto data provider founded in 2014. Nasdaq Ventures, BNP Paribas, and Coinbase Ventures also took part in the round.

Read together, the investment and the acquisition place S&P Global on both the data and security sides of the digital-asset market.

When the OpenZeppelin deal was made public, S&P Global shares were up about 1% before the market opened. SPGI closed Monday’s session at $450.65 and finished nearly flat for the day, according to Google Finance.

Primary sources

• S&P Global press release: S&P Global Completes Acquisition of OpenZeppelin
• OpenZeppelin announcement on X: https://x.com/OpenZeppelin/status/2114695817277706397
• Original report: Cryptopolitan