Sean Hart is RSI’s Finance Officer and Bookkeeper, where he manages the company’s core financial operations and supports project-level accounting. With a strong command of both accounting principles and digital systems, Sean ensures the integrity, accuracy, and compliance of RSI’s financial records and reporting.

Dr. Natalia (Natasha) Shilnikova is a Senior Health Risk Analyst at Risk Sciences International (RSI), where she has contributed since 2011 to some of the organization’s most analytically demanding and policy-relevant projects. With a background in medicine and a PhD in medical sciences, Dr. Shilnikova specializes in the synthesis of epidemiological evidence, human health risk assessment, toxicology, and critical literature reviews—applying her expertise across a spectrum of regulatory and public health priorities.

Dr. Franco Momoli joined Risk Sciences International (RSI) in 2019 and currently serves as Vice-President, Chemical and Product Safety. In this role, he leads a multidisciplinary team of epidemiologists, risk assessors, toxicologists, and biostatisticians in conducting human health risk assessments related to environmental contaminants and consumer products. His practice group supports government agencies, regulatory bodies, and international partners in making science-informed decisions that safeguard public health.

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.

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.

Dr. Paul Stanish joined Risk Sciences International (RSI) in 2021 as a Risk Analyst, where he plays an essential role in advancing data-driven risk practices. Leveraging his strong background in chemistry and nanotechnology, he supports clients in building modern data cultures grounded in causal inference, machine learning operations (MLOps), and organizational performance measurement. His work ensures that risk frameworks not only incorporate emerging technologies but are also scalable and operational within institutional settings.

Dr. Emma Hartnett is Vice-President, Risk Modelling and Simulation at Risk Sciences International (RSI), where she has been a foundational member since its inception in 2006. A globally recognized authority in quantitative risk assessment (QRA), she specializes in developing risk models and decision support tools for complex public health and safety challenges across biological, chemical, and environmental domains.

Dr. Willhite is an Associate Expert at Risk Sciences International, where he supports the development of quantitative health risk assessments for both naturally occurring and synthetic chemicals. His work draws on decades of experience integrating toxicological evidence, regulatory frameworks, and structure–activity data to inform science-based decision-making. His expertise adds significant value to RSI’s assessments of chemical tolerability, exposure limits, and public health protection standards.

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.