S&P Global acquires OpenZeppelin

● STRATEGIC | CYBERSECURITY · Cloud & Application Security

SEPTEMBER 18, 2026

S&P Global acquires OpenZeppelin

TARGET

Smart contract security audits, open-source contract libraries, and the Defender developer security platform for DeFi protocols, stablecoins, tokenized funds, and financial institutions deploying onchain infrastructure.

Ownership	VC-backed · Northzone, BoxGroup, Intersection Growth Partners, New Alchemy, IDEO CoLab Ventures
Capital raised	$37.4M
Headcount	140+ FTEs
Headquarters	London, United Kingdom
Leadership	Demian Brener, CEO, OpenZeppelin
Sell-side advisor	FT Partners

ACQUIRER

S&P Global

Ownership	Publicly traded (NYSE: SPGI)
Headquarters	New York, New York
Leadership	Yann Le Pallec, President, S&P Global Ratings
Buy-side advisor	Jefferies

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S&P Global -> OpenZeppelin  (2026-09-18)
strategic_acquisition | Cybersecurity | announced
Target: Smart contract security audits, open-source contract libraries, and the Defender developer security platform for DeFi protocols, stablecoins, tokenized funds, and financial institutions deploying onchain infrastructure.
Website: openzeppelin.com | Buyer site: spglobal.com
HQ: London, United Kingdom | Ownership: vc-backed | Buyer ownership: public (NYSE: SPGI)
Advisors - Sell-side: FT Partners; Buy-side: Jefferies
Source: Thematic - https://thematichq.com/software/d/s-p-global-openzeppelin.html

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