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Zachary A. Collier, Ph.D., is president of Collier Research Systems, a consultancy providing decision making and analytics services. With over 10 years of consulting experience specializing in modeling complex decision problems, he has worked across multiple industries and on a number of topics, including logistics management, technology development, strategic planning, supply chain management, and risk analysis. Zachary’s experience includes the U.S. Army Engineer Research and Development Center, where he was a member of the Risk and Decision Science Team. He earned his Ph.D. in Systems Engineering from University of Virginia, a Master of Engineering Management from Duke University, and a Bachelor of Science from Florida State University. He is a Fellow of the Center for Risk Management of Engineering Systems at University of Virginia, an active member of the Society for Risk Analysis, and contributes as a subject matter expert to the development of industry standards through SAE International. He is Managing Editor of the Springer journal Environment Systems & Decisions, and has published over 40 peer-reviewed journal articles, book chapters, and conference papers on topics related to decision modeling, risk analysis, and resilience.

Interested in joining the team? We are always looking for talented consultants with strong quantitative capabilities. Please send your resume to

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