As an Associate Expert with Risk Sciences International, Dr. Arnold brings clinical depth and field experience to RSI’s work in occupational health risk assessment and workplace safety policy development. He provides expert insight on topics such as exposure-related health outcomes, physical and psychological stressors in industrial settings, and the integration of clinical data into population-level risk models.

Dr. Tee L. Guidotti is an esteemed international consultant in occupational and environmental medicine, specializing in risk management and sustainability. His work encompasses problem-solving, medical evaluation, medicolegal services, and extensive publishing and writing. Although retired from the George Washington University, he maintains active roles in teaching and research, holding adjunct faculty positions at West Virginia University and the University of Alberta. His interests span energy technologies, firefighter health, climate change adaptation, and science policy. Dr. Guidotti's contributions include over 300 papers, eight books, and numerous awards, notably the Knudsen Award for Lifetime Achievement in Occupational and Environmental Medicine in 2013. His focus now centers on environmental sustainability and health.

As a Senior Advisor and Associate Expert with Risk Sciences International, Dr. Leiss contributes unparalleled insight into the design, delivery, and evaluation of risk communication strategies for government, regulatory bodies, and civil society. His legacy work in building public trust around controversial science and his decades of thought leadership on consensus-building, science-based policy, and societal responses to risk make him a foundational contributor to RSI’s mission.

Dr. Larkin serves as an Associate Expert at Risk Sciences International, specializing in policy, regulatory analysis, and population health risk assessment. Her work with RSI has included life cycle assessments of metals, as well as a review of Alberta’s Water Cytotoxicity Testing Program. She contributes rigorous, equity-sensitive approaches to risk analysis, and brings a nuanced understanding of the intersections between policy, science, and public values.

Margaret Wilson is a Senior Risk Analyst at Risk Sciences International (RSI), where she has been a foundational member since the company’s inception in 2006. Drawing on a rare combination of scientific breadth and analytical precision, Margaret has supported and led a wide range of multidisciplinary projects spanning microbial and chemical food safety, prion diseases, climate-related risk prioritization, and global regulatory systems.

Dr. Cote is an Associate Expert at Risk Sciences International, where she brings world-class expertise in environmental health risk assessment, risk management, and science-informed public policy. She contributes to projects that require strategic application of risk methodologies to environmental, occupational, and chemical exposure issues—often at the intersection of regulation, sustainability, and health protection. Her work with RSI benefits from her deep understanding of both U.S. and international regulatory environments and her commitment to advancing decision-making through transparent and defensible science.

Andrew’s focus since retiring from the Canadian federal public service has been to help clients improve digital service delivery by maximizing the use of their data holdings and assisting government regulators in adopting risk-based compliance models derived from data on the individuals or businesses they oversee. This often involves developing risk models and determining how these models can be practically applied in the client’s daily operations.

As a Risk Management Expert at RSI, John Lark brings a wealth of practical and policy-level experience to support strategic risk frameworks, enterprise-level risk reviews, and board advisory services. He contributes to RSI projects that require deep knowledge of international standards (especially ISO 31000) and risk integration into organizational governance and operations. His advisory scope spans both public and private sector clients, often at the interface of policy, compliance, and strategic foresight.

As a Software Engineering Fellow at RSI, Dr. McNair brings unparalleled expertise in machine learning, Bayesian modeling, and decision-support systems. He supports RSI’s most advanced projects by designing and validating AI/ML architectures that meet both regulatory standards and ethical imperatives, including fairness, transparency, and distributive justice. His domain expertise spans from clinical prediction models to the risk analytics of high-reliability systems, with a particular focus on ensuring data quality and model interpretability.

Dr. Paul Price is a Senior Analyst at Risk Sciences International (RSI), bringing over four decades of experience as a pioneer in exposure science and chemical risk assessment. Since joining RSI in 2019, Dr. Price has focused on advancing mixture risk assessment—an increasingly vital area as regulators shift from assessing single chemicals in isolation to understanding the cumulative effects of combined exposures. His current work includes the development of Mixture Adjustment Factors, participation in international regulatory committees, and authorship of scholarly publications aimed at refining the science-policy interface of chemical mixture risk.