This list of investment banks notes full-service banks, financial conglomerates, independent investment banks, private placement firms and notable acquired, merged, or bankrupt investment banks. As an industry it is broken up into the Bulge Bracket (upper tier), Middle Market (mid-level businesses), and boutique market (specialized businesses).

Investment banking is a type of banking that organizes large, complex financial transactions such as mergers or initial public offering (IPO) underwriting. These banks may raise money for companies in a variety of ways, including underwriting the issuance of new securities for a corporation, municipality, or other institution.

Investment bankers often work as part of a financial institution. Examples of investment banker employers are Goldman Sachs (GS), Morgan Stanley (MS), JPMorgan Chase (JPM), Bank of America Merrill Lynch (BAC), and Deutsche Bank (DB). Investment bankers are financial advisors who work with corporations, governments, and other large entities.

The examples include well-known names such as Goldman Sachs, Deutsche Bank, Credit Suisse, Morgan Stanley, etc. These banks are mammoth in size, and a majority of their clients include Fortune 500 companies. They frequently aid multi-billion dollar deals and provide all the investment banking services.