Alex Brown is currently a Professor and Department Chair in the Department of Chemistry, University of Alberta, Canada. His group pursues diverse research in the field of computational and theoretical chemistry including photochemistry and photophysics of fluorescent proteins, small molecule biofluorophores, and phosphorescent inorganic species; molecular quantum dynamics and potential energy surface fitting; optimal control theory for laser control; physical organic chemistry; as well as understanding novel bonding and structure in inorganic materials. He has published more than 140 research articles and given presentations at more than 100 national and international conferences as well as research institutes around the world. He currently serves as the Past-President (previously President and Vice-President) for the Canadian Society of Chemistry (CSC). He has also served the CSC as the past-chair, chair, and vice-chair for the Physical, Theoretical, and Computational Chemistry (PTC) division. In addition to his service to the CSC, he has served over 17 years as the secretary/treasurer for the Canadian Association of Theoretical Chemists (catc.ca).

Erin R. Johnson is originally from Ottawa, Canada and obtained her B.Sc. (Honours) at Carleton University. She completed her Ph.D. in chemistry at Queen's University in 2007, under the supervision of Prof. Axel Becke. She was then an NSERC post-doctoral fellow at Duke University in the group of Prof. Weitao Yang. Johnson is now a Professor at Dalhousie University, in Halifax, Canada, where she holds the Herzberg-Becke Chair in Theoretical Chemistry. Since 2024, she has also been a Royal Society Wolfson Visiting Fellow at the University of Cambridge. Over her career, Johnson has published 174 peer-reviewed papers that have been collectively cited over 35,000 times. Her research focuses on development and application of density-functional theory, with an emphasis on intermolecular interactions and molecular crystal-structure prediction. The quality of Johnson's research has been recognised through numerous prestigious awards, including the 2021 Steacie Prize, the 2020 Rutherford Memorial Medal in Chemistry, a 2019 E.W.R. Steacie Memorial Fellowship, and the 2018 Dirac Medal from the World Association of Theoretical and Computational Chemists (WATOC). She has served on the CATC board since 2016, and has been the CATC president since 2024.

Chérif F. Matta is Professor of Chemistry and Physics at Mount Saint Vincent University. He also holds adjunct or honorary appointments at Saint Mary’s University and Université Laval, and is currently (summer 2026) a Visiting Professor at the Universidad Nacional Autónoma de México (UNAM). He received his PhD from McMaster University under Richard F. W. Bader, completed postdoctoral research with Nobel Laureate John C. Polanyi at the University of Toronto and with Russell J. Boyd at Dalhousie University, and earned the French Habilitation (HDR) from Université de Lorraine. His research spans theoretical and computational chemistry, chemical physics, quantum crystallography, molecular electrostatics, and theoretical astrochemistry. He has authored more than 200 publications, including four books, and has delivered approximately 300 invited lectures in about 40 countries. Professor Matta has extensive experience in scientific leadership and peer review. He served as Chair of the Canada Research Chairs Interdisciplinary Adjudication Committee, Director of Accreditation and Board Member of the Canadian Society for Chemistry, and member of the Canada Excellence Research Chairs multidisciplinary selection committee. He currently serves on the Canadian National Committee for Crystallography and has served on numerous national and international funding and advisory committees. He looks forward to contributing this experience to the Canadian Association of Theoretical Chemists.

Dr. Siahrostami is an Associate Professor of Chemistry and Tier 2 Canada Research Chair in Modeling Surface Electrocatalysis and Electrochemical Transformations at Simon Fraser University. She previously was an Assistant and Associate Professor at the University of Calgary (2018-2023). Before that, she worked at Stanford University’s Department of Chemical Engineering as a research engineer (2016-2018) and a postdoctoral researcher (2014-2016). From 2011 to 2013, she was also a postdoctoral researcher at the Technical University of Denmark. Using computational methods, she investigates the physicochemical properties of nanomaterials to unravel complex electrochemical processes occurring on various nanomaterials, establish structure-activity relationships, and develop novel nanostructures with enhanced atomic precision and tailored multifunctionality for critical electrochemical reactions involving small-molecule conversions that are essential for a low- or zero-carbon future. She has published 120 peer-reviewed articles, has an h-index of 59, and has received over 23,300 citations. Dr. Siahrostami has received multiple awards, such as 2025 Canada Section William Lash Miller Award from Electrochemical Society, 2023 Tom Ziegler Award from the Canadian Society for Chemistry (CSC), 2023 WIN Rising Star Award from the Waterloo Institute of Nanotechnology, the Environmental, Sustainability, and Energy Division Horizon Prize: John Jeyes Award from the Royal Society of Chemistry (RSC) in 2021.

Dr. Tao (Toby) Zeng is a theoretical and computational chemist with 23 years of research experience and 11 years of university teaching experience. His expertise lies in simulating vibronic coupling and relativistic effects in chemistry, spectroscopy, and materials science. Dr. Zeng has authored 115 peer-reviewed articles. His recent breakthrough achievements include deriving the unified vibronic and relativistic vibronic Hamiltonian formalism for all Jahn-Teller, pseudo-Jahn-Teller, and Renner-Teller problems, designing small singlet fission chromophores, and investigating van der Waals stackings of Xanes (X = Group 14 elements). His contributions to the field were recognized with the Tom Ziegler Award in 2024. Dr. Zeng earned his PhD from the University of Alberta in 2011, where he won the Governor General’s Academic Gold Medal. He then completed postdoctoral fellowships at the University of Waterloo (2011–2013) and Cornell University (2013–2015), holding NSERC, MRI-Ontario, and Banting PDF appointments, and winning the John Charles Polanyi Prize (2012). He began his independent academic career as an Assistant Professor at Carleton University in 2015. In 2019, Dr. Zeng joined the faculty at York University, where he was promoted to his current tenured position in 2022.