Greg Paoli earned both his Bachelor's and Master's degrees from the University of Waterloo, specializing in engineering and systems design. His early career involved diverse research projects at the University of Waterloo's Institute for Risk Research. Greg later founded Decisionalysis Risk Consultants in 1997 and co-founded Risk Sciences International in 2006. He has served on multiple high-profile committees, including those under the U.S. National Academy of Sciences. As CEO of Risk Sciences International, Greg focuses on risk-based regulatory transformations and has developed enabling technologies like FDA-iRISK. His work spans various sectors, from food and chemical safety to public health, and he continues to contribute to the advancement of risk-based decision-making methodologies.

Don Mattison's career is an amalgamation of medicine, science, and public service. He started with a Bachelor's degree in Chemistry and Mathematics, followed by a Master's from MIT in Chemistry. He then pivoted to medicine, obtaining an MD from Columbia University and focusing on pharmacology and toxicology in reproductive health during his residencies. Mattison has held several prestigious appointments, including Dean of the University of Pittsburgh's Graduate School of Public Health and Chief Medical Officer at Risk Sciences International. Throughout his career, he obtained medical licenses in six U.S. states and served in the U.S. Public Health Service, retiring with the rank of Captain. Most recently, he became a Distinguished Professor of Epidemiology at the University of South Carolina.

Rosanna Wong is a Junior Risk Analyst at Risk Sciences International (RSI), where she supports multidisciplinary projects at the intersection of climate resilience, food systems, and public safety. Since joining RSI in 2021, Rosanna has contributed to a broad range of research areas, including foodborne disease, intentional food adulteration, transportation and natural disaster risks, and climate change adaptation strategies.

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. Al-Zoughool has maintained a long-standing relationship with Risk Sciences International, both as a scientific collaborator and as a co-investigator on complex international projects. His work with RSI focuses on high-level public health risk modeling, mechanistic data analysis, and toxicological risk assessment of major environmental contaminants in air, soil, and water, including formaldehyde, lead, and 1,4-dioxane. His research also extends to methodological innovation and the development of evidence-based strategies for environmental and occupational health policy.

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.

Daniel Krewski began his career in the federal government of Canada, focusing on programs within Health Canada, particularly in food safety and environmental health. Trained in mathematics, statistics, and biostatistics, his multidisciplinary background reflects the complex nature of risk science. He later transitioned to academia, founding the McLaughlin Centre for Population Health Risk Assessment at the University of Ottawa. There, he developed new methodologies and collaborated internationally. In 2006, he co-founded Risk Sciences International, aiming to provide expert advice on diverse risk issues. His contributions have been instrumental in shaping risk assessment frameworks used by organizations like Health Canada and the U.S. Environmental Protection Agency. In 2023, Dr. Krewski passed the CEO's baton to Greg Paoli; he remains active as RSI Chief Risk Scientist.

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. Shintaro Hagiwara is a Risk Analyst and Statistician at Risk Sciences International (RSI), where he contributes cutting-edge statistical insight to risk assessments, particularly in chemical safety and public health. Since joining RSI’s technical team in 2018 and transitioning to a full-time role in 2023, he has applied his deep quantitative knowledge to building theoretical foundations and developing statistical software. Notably, he created the database-calibrated assessment process (DCAP) and the enhanced value-of-information (VOI) framework to aid in evidence-based regulatory decision-making, both of which have been reviewed by the Board of Scientific Counselors (BOSC). His applied statistical work provides assessments and tools to derive PODs for chemicals such as inorganic arsenic and fluoride to support both Canadian and international regulatory bodies.

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.