State Street STT

FinanceMarket cap $25B1 connection

State Street is the world's second-largest custodian bank with $42T+ in assets under custody. Its SPDR ETF franchise - including SPY (the world's largest ETF) - manages $1.3T. Every institutional investor needs a custodian to hold their assets; State Street, BNY Mellon, and JPMorgan split most of this essential infrastructure role.

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Customers 1

Companies State Street sells to

BlackRockFinance · $130BETF administration for iShares

Partners 1

Strategic partnerships, joint products and alliances

BlackRockFinance · $130BState Street SPDR ETFs compete with BlackRock iShares

Other Finance companies

Berkshire Hathaway JPMorgan Chase Visa Mastercard Bank of America Wells Fargo American Express Blackstone Goldman Sachs HSBC

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Relationships are compiled by VexMap from company filings, announcements and reporting, and last reviewed September 2026. Spotted something wrong? Tell us. Not investment advice.