An investment bank is a financial institution that provides a wide range of specialized services primarily to corporations, governments, and institutional investors. It is a financial service company that acts as an intermediary in large and complex financial transactions. An investment bank is usually involved when a startup company prepares for its launch of an initial public offering (IPO) and when a corporation merges with a competitor. It also plays the role of a broker or a financial adviser for large institutional clients such as pension funds. Global investment banks include JPMorgan Chase, Goldman Sachs, Morgan Stanley, Citigroup, Bank of America, Credit Suisse, and Deutsche Bank. Over the years, investment banks have played a vital role in the telecom industry and have helped those industries build larger network which provides high speed and a great connectivity. Let’s discuss it under the various headings.