Millennium Trust is a large IRA custodian you probably have never heard of unless you are in a similar business or a client of the firm. Headquartered in Chicago, Millennium Trust operates nationally but has set it sights on getting far bigger. The privately held company has tripled in size in the past three years and they believe this growth is just getting started. A significant portion of their new business is being generated by targeting new forms of finance, such as marketplace lenders and equity crowdfunding platforms. This nascent sector of finance requires new services to facilitate operations and manage client funds.