Voted Toast of Music City Best Real Estate Firm and a Finalist for Nashville Business Journal's Best in Business for Companies with over 500 employees. Reliant Realty is Middle TN's largest and fastest growing Agency by Roster. With our network of nearly 600 active agents and a cutting edge approach to Real Estate, Reliant Realty sells thousands of homes each year. Rethink Realty, Reliant Realty.