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.

Margaret Wilson holds a BSc, BEd, and MSc in Molecular Biology, with post-graduate certificates in Population Health Risk Assessment and Management. She has worked extensively in health risk research, from BSE risk management to foodborne hazards. Currently at RSI, her focus includes risk prioritization and addressing challenges related to climate change. Margaret's multidisciplinary background equips her to tackle complex risk issues effectively.

John Lark is a globally recognized expert in risk management, with a distinguished career spanning leadership roles in research, committee chairing, and board-level facilitation. He collaborates with international bodies, including the OECD, US EPA, and ISO. Mr. Lark's expertise extends to speaking engagements at prominent conferences worldwide. He holds the CPRM certification and actively contributes to ISO committees. His extensive board experience includes chairing two not-for-profit boards and participating in major charities. He earned the ICD.D designation through the Director's Education Program. Mr. Lark authored the international ISO Guide for implementing ISO 31000:2009.

Todd Ruthman serves as Vice‑President, Software and Modelling Solutions at Risk Sciences International (RSI) and has been with RSI since its founding in 2006. With a BASc in Systems Design Engineering from the University of Waterloo, Todd strives to understand the complex interactions in systems -- a perspective that he channels into the design of data-driven, evidence-based decision-support applications for RSI’s clients. His team crafts custom IT solutions and leverages tools such as SQL Server, .NET,  Python, Excel, and R, to translate complex risk scenarios into interactive decision-support platforms.

Dr. Calvin Willhite is a renowned expert in developmental toxicology and quantitative structure-activity relationships, with a substantial publication record. He has played key roles in influential organizations and committees, including the National Academy's Committee on Toxicology, the U.S. EPA's National Advisory Committee, and the IARC Cancer Chemoprevention Panel. Dr. Willhite is a member of the Society of Toxicology and is featured in notable biographical publications. Currently, he serves as an Associate Expert with Risk Sciences International, contributing to health risk assessments for various chemicals, both man-made and naturally-occurring.

Dr. Sattar, with nearly five decades of research experience, specializes in microbial pathogens, their environmental influence, and safe technologies for combating infectious agents. His research delves into how pathogens survive and spread via water, food, air, waste, and surfaces. Funding for his work comes from peer-reviewed sources and research contracts. He offers expertise to national and international agencies and the private sector. With an extensive publication record and over 350 invited lectures worldwide, Dr. Sattar's contributions to the field are substantial. Notable works include the 2013 reference text "Principles and Practice of Disinfection, Preservation & Sterilization" (5th ed; Wiley-Interscience). He's received several professional honors, including the M.S. Favero Lectureship, Lifetime Achievement Award, and the Hygieia Gold Medal.

Excerpt: Andrew Maw, an Associate Expert at Risk Sciences International (RSI), specializes in digital service delivery, data-driven risk modeling, and regulatory transformation. With extensive experience as a senior executive in the Canadian federal public service, he helps clients transition to risk-based compliance models, leveraging advanced analytics, machine learning, and business transformation strategies to enhance decision-making and operational effectiveness.

With interdisciplinary training in Life Sciences, Public Health, and Public Administration, Dr. Michael G. Tyshenko specializes in health risk communication and policy. He collaborates globally on infectious disease research, including SARS, MERS, and COVID-19, and leads chemical peer reviews at Risk Sciences International (RSI). His work also extends to pandemic planning in Nepal, focusing on drone delivery of medical supplies to remote areas. Tyshenko's expertise is sought by various government departments in Canada and abroad.

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.

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.