The Financial Times:

Lloyd Blankfein told a group of Wall Street gay activists that Goldman Sachs had lost at least one client because of its stance in favour of gay marriage.

“It’s not without a price,” the Goldman chief executive told an audience on Wednesday. “There was some adverse reaction by someone ... They didn’t want to continue a relationship that they had with us in money management ... I won’t say the name but if you heard the name it wouldn’t surprise you.”

... He was recruited in February to be a public spokesman for same-sex marriage by the Human Rights Campaign, putting him at the forefront of a politically charged issue.