About Our Firm Since 1980, M. R. Henderson and Company, P.C., has operated nationally, providing quality financial guidance to individuals and major corporations. Our expertise ranges from basic tax management to consulting. Yankton area M R Henderson & Company, P.C. is one of the leading firms throughout the area. By combining our expertise, experience and the team mentality of our staff, we assure that every client receives the close analysis and attention they deserve. Our dedication to quality customer service is why our clients return year after year. Our Mission Our mission is to help clients maintain financial viability in the present, while taking a proactive approach to achieve future goals. This requires open communication to reach an understanding of our clients' needs through research and sound analysis. M R Henderson & Company, P.C. is dedicated to meeting these goals with high standards of excellence and professionalism. We have been a staple of the area's business community for years, and pride ourselves on the level of esteem we have earned.