Charles Schwab & Co. Inc. is an investment banking and securities brokerage firm. Located in Scottsdale, Ariz., the firm offers a series of financial services, such as investment advisory and trading, equity research and online financial services. It also provides advisory services on estate planning, life insurance and annuities. The company is a subsidiary of The Charles Schwab Corporation, one of the leading financial services providers in the United States. Charles Schwab & Co. Inc. is a member of the Securities Investor Protection Corporation (SIPC).