Wholesale Banking

Banking services between merchant banks and other financial institutions.

Investopedia Says:
In other words, business to business banking.

Banking services offered to corporations with sound financial statements, and institutional customers, such as pension funds and government agencies. Services include lending, cash management, commercial mortgages, working capital loans, leasing, trust services, and so on. Most banks divide wholesale banking into several different businesses: the Fortune 500 and Fortune 1000 market, composed of the 500 and 1,000 largest U.S. Corporations, respectively; the Middle Market; and the small business market.

Commercial banks, responding to increased market competition from alternative financing sources, such as commercial paper and junk bonds, have begun to place more emphasis on fee-based corporate services, including foreign exchange and securities trading, advisory services in corporate mergers, and acquisitions, merchant banking, and corporate cash management, and securities underwriting. See also Commercial and Industrial (C&I) Loan; Commercial Mortgage; Investment Advisor; Leveraged Buyout; Noncredit Services; Securities Affiliate; Securitization.