Company: Principals
Gradient's Principals are nationally recognized experts and active contributors to the promotion of sound science.
Select any Principal on this page for a biographical summary of their professional qualifications, recent projects, and selected publications.
- Barbara D. Beck, Ph.D., DABT
Principal - Teresa S. Bowers, Ph.D.
Principal - Catherine Petito Boyce, S.M.
Principal Scientist - Eric L. Butler, Ph.D.
Principal - Peter J. Drivas, Ph.D.
Principal Consultant - Julie E. Goodman, Ph.D., DABT
Principal Scientist - David E. Langseth, Sc.D, P.E.
Principal - Thomas A. Lewandowski, Ph.D., DABT
Consulting Scientist - Christopher M. Long, Sc.D.
Principal Scientist - David E. Merrill, M.S.
Principal - Lorenz R. Rhomberg, Ph.D.
Principal - Manu Sharma, M.S., P.E.
Principal - Neil S. Shifrin, Ph.D.
Principal and Founder - Peter A. Valberg, Ph.D.
Principal - A. Dallas Wait, Ph.D.
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