Larry Mattson, Ph.D. started the firm in 1986 after leaving his position as a Senior Partner at Litigation Sciences. Prior to his work as a Jury Consultant, Larry held several positions with Black & Decker, including President of Nippon Black & Decker, General Manager of McCulloch Japan, and Director of Planning and Acquisitions at Black & Decker's headquarters in Maryland. Larry holds a B.A. from Willamette University, an M.B.A. from UCLA and a Ph.D. from Claremont Graduate School. Larry is a member of the American Society of Trial Consultants.

Drury Sherrod, Ph.D. joined Larry Mattson in 1988 to form Mattson and Sherrod, Inc. Dru brings a background in psychology and communication to bear on questions of juror behavior and trial strategy. Dru is the author of a textbook on social psychology and more than thirty articles on psychology, jury behavior, attribution theory and the effects of environmental stress on human behavior. Dru holds a B.A. from Southern Methodist University, an M.A. from the School of Advanced International Studies at Johns Hopkins University, and a Ph.D. from Stanford University. Dru is a member of the American Society of Trial Consultants, the American Psychological Association, and the Society for Experimental Social Psychology.

Ellen Sherwood, Ph.D. joined Mattson and Sherrod Inc. in 1989 after leaving a position as a research associate in the Department of Medicine and Biobehavioral Sciences at UCLA. Ellen uses statistical methods to analyze and predict juror verdicts, and she organizes juror information for use during jury selection. Ellen has published numerous articles, including research on the predictors of patients' success in substance abuse treatment programs, the predictors of doctors' choices of medical specialty, the predictors of job success and satisfaction, and the predictors of a successful adjustment to retirement. She has also written on the recovery process for people imprisoned as hostages and prisoners of war. Ellen holds a B.A., M.A. and Ph.D. in Psychology from UCLA. Ellen is a member of the American Society of Trial Consultants.

Eric Gober joined Mattson and Sherrod, Inc. in 2004. Eric has over 20 years of experience in research-related project management, and holds a B.S.E. from Arizona State University and an M.F.A. from Wichita State University. Eric is a member of the American Society of Trial Consultants.