JPMorgan Chase is one of the four largest investment banks in the world and offers a variety of services, including underwriting, M&A advisory, and trading.2.

Morgan StanleyMorgan Stanley is an American multinational investment bank and financial services holding company headquartered in New York City. Morgan Stanley is the second largest bank in the United States, with total assets of more than US$2 trillion.Morgan Stanley traces its history to 1892, when J.P. Morgan & Co. merged with George Peabody & Co., and offers a range of investment banking, asset management, private banking, and commercial banking services. It is one of the Big Four banks of the world's leading financial institutions.3. Goldman SachsGoldman Sachs is an American multinational investment bank and financial services company headquartered in New York City. It is one of the Big Four banks of Wall Street and the world's leading securities firm by revenues.Goldman Sachs traces its history to 1869, when Marcus Goldman founded Goldman Sachs & Co., and offers a wide range of investment banking, securities brokerage, capital markets, and banking products and services to corporate clients around the world.