More than 6,000 Registered Investment Advisors nationwide have chosen TD Ameritrade Institutional as their preferred provider of client account support. With over $1.1 Trillion in total client assets, and over 11 million client accounts, you can be certain that your assets are held with a financial institution that you can trust. With a partner like TD Ameritrade Institutional, our firm is supported by a team that works with us each and every day. TD Ameritrade Institutional assists us in providing unparalleled client service and support, along with industry leading technology.