Investors Bank & Trust

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Investors Financial Services Co.
Industry Investment servicing
Successor State Street
Founded Boston, Massachusetts in 1969
Headquarters Boston, Massachusetts
Key people
Kevin Sheehan, CEO & Chairman
John Spinney, SVP & CFO
Products Financial Services
Revenue Increase$1.95 trillion assets under custody, $277 billion non-U.S. assets under custody USD (2005)
Number of employees

For Investors Bank headquartered in New Jersey, see Investors Bank.

Investors Bank & Trust or IBT was a custodian bank, and the principal operating subsidiary of Investors Financial Services Corp., (previously NASDAQIFIN), a holding company based in Boston, Massachusetts. First founded in 1969 as an offshoot of Eaton Vance, the company was purchased by State Street Corporation in 2007 as an all-stock deal valued at nearly $4.5 billion and no longer operates as a separate listed company. State Street refers informally to the former IBT operation as "State Street Back Bay".

IBT's headquarters were located within the landmark John Hancock Tower designed by I.M. Pei, where it was chief tenant.[citation needed] Some of IBT's more well-known clients included Aegon, Barclays Global Investors, Eaton Vance, and MassMutual.

Office locations[edit]

Investors Financial Services had offices in Massachusetts, New York City, Sacramento, Toronto, Dublin, and Grand Cayman Island. The New York office had only 10 people, while the Grand Cayman Island office was only a post office address held for tax reasons.


  • Investors Bank & Trust
  • Merrimac Money Market Funds


External links[edit]