Investment banking is a business that facilitates capital markets and the larger financial community. Investment bankers connect investors to companies that are raising money by issuing stocks and bonds.

Investment bankers are financial professionals who advise corporations, as well as governments or other entities. They help these clients raise capital (money) by issuing shares of stock or offering bonds.

Investment banking is a category of financial services that specializes primarily in selling securities and underwriting the issuance of new equity shares to help companies raise capital. Investment banking is different from commercial banking, which specializes in deposits and commercial loans.

What is 'Investment Banking' Definition: Investment banking is a special segment of banking operation that helps individuals or organisations raise capital and provide financial consultancy services to them. They act as intermediaries between security issuers and investors and help new firms to go public.

Investment banking is the side of the banking business that deals with capital markets and related transactions. It is generally the corporate-facing side of the banking industry, as opposed to the consumer-facing side.