investment bank
He belonged to a group of men of privilege with backgrounds in law or investment banking.
New England's biggest bank will sell its investment banking subsidiary at a loss of hundreds of millions.
Since its launch in 1969, Robertson's mission was to provide top-quality investment banking services to small technology firms.
Earnings at the company's investment banking and corporate lending business rose 4 percent.

investment banking | Business English

investment banking
noun[ U ]
 BANKING, FINANCEukus
the business of operating an investment bank or providing the services of an investment bank:
Sam is an investment banking specialist.
She worked in investment banking in Madrid.
the investment banking arm/division/unit of sththe investment banking arm of Deutsche Bank
an investment banking business/company/firm