Sergio Pellegrino is the Joyce and Kent Kresa Professor of Aeronautics and Civil Engineering at the California Institute of Technology, JPL Senior Research Scientist and co-director of the Space Solar Power Project. He received a Laurea in Civil Engineering from the University of Naples in 1982 and a PhD in Structural Mechanics from the University of Cambridge in 1986. From 1983 to 2007, he was on the faculty of the Department of Engineering at the University of Cambridge, where he founded the Deployable Structures Laboratory.
Pellegrino’s general area of research is the mechanics of lightweight structures, focusing on packaging, deployment, shape control and stability. With his students and collaborators, he is currently working on novel concepts for future space telescopes, spacecraft antennas, and space-based solar power systems. Pellegrino’s publications have been selected for several awards, including the ICE James Watt Medal; AIAA Gossamer Spacecraft Forum Best Paper Award; IASS Tsuboi Award; ASME/Boeing Best Paper Award and ASME Mechanisms and Robotics Committee Best Paper Award. He received a Pioneers’ Award in 2002 from the Space Structures Research Centre, University of Surrey, and NASA Robert H. Goddard Exceptional Achievement Team Awards in 2009 and 2016 for his contribution to the superpressure balloon development.
Pellegrino is a Fellow of the Royal Academy of Engineering, a Fellow of AIAA and a Chartered Structural Engineer. He is currently President of the IASS and has been the founding chair of the AIAA Spacecraft Structures Technical Committee. Pellegrino has authored over 300 technical publications.

Tadashi Tokieda is a professor of mathematics at Stanford University; previously he was the Director of Studies in Mathematics at Trinity Hall, Cambridge. He was born in Japan and educated in France as a classical philologist. He taught himself basic mathematics from Russian collections of problems. He was a 1989 classics graduate from Jochi University in Tokyo and obtained his bachelor's degree from Oxford in mathematics. He completed his PhD at Princeton under the supervision of William Browder.
Tokieda was the William and Flora Hewlett Foundation Fellow at the Radcliffe Institute for Advanced Study at Harvard University in 2013-2014, and the Poincaré Distinguished Visiting Professor at Stanford in 2015-2016. He was a recipient of Paul R. Halmos - Lester R. Ford Award.
Tokieda works on mathematical physics problems. He is also very active in inventing, collecting, and studying toys that uniquely reveal and explore real-world surprises of mathematics and physics.

Tomohiro Tachi is an associate professor in Graphic and Computer Sciences at the University of Tokyo. He studied architecture and received his PhD in Engineering from the University of Tokyo.
Tachi's research interests include origami, structural morphology, computational design, and digital fabrication. He has been designing origami from 2002 and keeps exploring three-dimensional and kinematic origami through computation. He developed a number of well-known origami software tools including "rigid origami simulator", "origamizer", and "freeform origami", which are available from his website. Tachi was the one of the keynote speakers at the ASME IDETC 2016.

Emma Frigerio had taught mathematics at the University of Milano, Italy, until 2015. She has been interested in origami since she was a teenager, and became a member of the Italian origami association, Centro Diffusione Origami, in 1986. Shortly afterwards she became interested in exploring the connections between origami and mathematics with a view to using origami in math classes at all levels.
Frigerio developed and taught workshops on using origami to teach and explain mathematics and for teacher training programs at two universities in Milano. She also developed, together with Maria Luisa Spreafico, a program of hands-on mathematical activities using origami for primary school students.
Frigerio spoke at the first International Meeting of Origami Science and Technology in Ferrara, Italy in 1989, which was the forerunner of what was to become OSME. She has since attended and played an active part in the OSME meetings.