Bank conveniently and securely with Capital Bank Mobile Banking. Headquartered in Rockville, Maryland, Capital Bank, N.A. is a leading private bank in the Washington, D.C. metropolitan area that offers a range of services encompassing cash management, commercial lending, consumer credit, and residential mortgage loans. Our secure mobile banking application provides you the ability to check balances, transfer funds, view transactions, pay bills, make mobile deposits, and check messages from anywhere, anytime. It’s fast, free and available to all of our online banking users.