DMT Staff


Darrel Baumgardner obtained his Ph.D. from the University of Wyoming and is now Chief Scientist at DMT, the company he founded in 1987. He spent twenty years at the National Center for Atmospheric Research in the United States and 14 years as a senior scientist at the Universidad Nacional Autonoma de Mexico, the largest university in Latin America. He is an internationally recognized expert on measurements of aerosol and cloud particles and has developed a number of new techniques for measuring their properties.


Greg Kok is the Director of Research and Development at DMT. Dr. Kok received his Ph.D. In Analytical Chemistry from the University of Michigan. Prior to joining DMT, he taught college-level chemistry and worked at NCAR’s aviation facility, where he was active in instrumentation development and applications.


Alexis Attwood obtained her Ph.D. in Atmospheric Chemistry from the University of New Hampshire and went on to do a post-doc at the National Oceanic and Atmospheric Administration (NOAA). Her research focused on ground based measurement of aerosol optical properties and their impacts on the atmosphere as well as instrument design and development. She is now the director of business development and serves as the primary point of contact for sales, technical support and data analysis software related to DMT’s bioaerosol and black carbon instrumentation.


Matt Freer joined DMT in 2012. He holds an M.S. in Aerospace Engineering from the University of Illinois at Urbana-Champaign. From 2009 to 2012, he worked as a Standards and Protocols Engineer for Meteo-France at the European Facility for Airborne Research (EUFAR) in Toulouse. Mr. Freer also spent several years as a programmer for the Department of Atmospheric Sciences at the University of Illinois, Urbana-Champaign. He serves as a primary point of contact for sales, technical support, and data analysis software related to DMT’s cloud particle instrumentation. He is also involved in instrument development and research.