TD Ameritrade

Founded in 1971, TD Ameritrade provides securities brokerage and related technology-based financial services to retail investors and traders, and independent registered investment advisors in the United States. The company also offers investor education services for stocks, options, income investing, and portfolio management; AdvisorDirect, a national referral service for investors; real-time market news, insights, and investor education services; and self-directed brokerage services to employees of corporations. Its services primarily through the Internet, a network of retail branches, mobile trading applications, interactive voice response, and registered representatives through telephone. The company is headquartered in Omaha, Nebraska.