David Claybaugh

COO; Director, Strategic Defense Projects David brings 10 years of experience in model-based data analytics, simulation, and System Dynamics to his role at Ventana. With a background in analytics at Booz Allen and USMCR, David brings experience in model development, testing, and data integrattion, contributing to projects across sectors including transportation, energy, and national security.

Thomas S. Fiddaman

Chairman, CTO  Tom joined Ventana in 1997 and has 30 years experience in applying models for the economic implications of global climate change, strategic electricity sector testing of pollution reduction strategies, and natural gas supply and demand. His business consulting includes models of next-generation technologies, international consumer markets and commodity supply and demand. Tom received

Mary M. Neil

Director, Planning & Finance Mary is Treasurer of Ventana, and is responsible for financial planning and operations. She helped found Ventana in 1985, coming from a position as operations manager of a software consulting firm. Mary began her career at Digital Equipment where she worked in logistics planning, supervision, and education.

David W. Peterson

Founder, Chief Scientist David is internationally recognized for System Dynamics and optimal control modeling. David’s focus is developing systems for business strategy optimization and enterprise-wide decision support. His approach emphasizes the testing of models with incomplete and approximate data. David’s 50 years’ of experience includes successful engagements in R&D management, global marketing strategies, new market

Laura D. Peterson

President Laura is a founder of Ventana. Prior to Ventana, Laura helped organize the Club of Rome visit to MIT. Laura was a group manager at Digital Equipment Corporation, responsible for logistics planning and advanced automated testing. At Ventana Laura has worked closely with clients over Ventana’s 40-year history. In 2007, the Boston History and

Mike Ryder

CEO; Manager, Strategic Defense Projects Mike is an experienced engineer and System Dynamics modeler with 15 years of work spanning clean energy, technology commercialization, and strategic modeling. His Ph.D. Dissertation developed an integrated approach to model the financial and technical aspects of novel chemical processes. His prior experience includes leading feasibility modeling and prototyping efforts

Adem Delibaş

Director, Commercial Projects Adem has 15 years of experience in helping clients solve complex policy and strategy challenges using dynamic modeling. Most recently, he has helped a major multinational electronics corporation simulate carbon footprint of their product portfolio. Prior to joining Ventana, Adem co-developed the En-ROADS Climate Solutions Simulator, conducted global climate policy analyses and

Jacob Fine

Senior Software Developer Jacob joined Ventana after working as a software engineer supporting the design, development, and refinement of a high-performance System Dynamics modeling engine. His previous work focused on core enhancements to simulation architecture, calibration systems, and diagnostics—improving speed and accuracy for advanced modeling applications.  

Scott T. Johnson

Training and University Liaison Scott is a System Dynamics modeler and systems engineer with 25 years experience helping to improve decision-making in complex organizational environments. He has led consulting, research, and educational efforts in sectors ranging from energy to international development. His work includes developing and teaching graduate-level System Dynamics courses at University of North

Tony Kennedy

Director, Vensim Development & Support Tony has 30 years working with Vensim. Tony’s career has included simulation development using both System Dynamics and discrete event techniques. He has extensive experience in computer simulation, software and GUI design and development. He has applied simulation techniques to war-gaming, manpower, capacity planning, and maintenance issues.