Stock Exchange: This term refers to an organized marketplace where securities (stocks, bonds, etc.) are bought and sold. The New York Stock Exchange is one example.
Financial Institutions: This term refers to organizations such as banks, credit unions, and insurance companies that provide financial services to individuals and businesses.
Investment Banking: This term refers to a division within financial institutions that provides advisory services for mergers and acquisitions, underwrites new securities offerings, and facilitates large capital transactions.