Mainstay Group is a professional consulting and management company based in Gaithersburg, serving the town and surrounding Washington D.C. area. Founded in 1987, the company offers professional consulting services for the securities and capital markets industry as well as other regulatory agencies. The company offers a wide range of consulting and outsourcing services to clients such as brokers, dealers, investment companies, banks, securities lawyers and insurance companies. Call for more information or to speak with an associate about services.