Atmospheric physics research department, working on simulations of the propogation of Alfven (magnetohydrodynamic) waves through the magnetospheres of earth and the jovian planets.
Engineering firm; set the company up with computers (previously, everything had been done with printing calculators) and created simulation and optimization systems for large-scale communication systems.
Lawrence Livermore National Laboratory; built parts for their linear accelerator to improve the resolution of neutron time-of-flight measurements and improved the software used to analyze those measurements.