There are three wholly-owned complementary subsidiaries of Physical Sciences Inc. They provide research and development, on-site support, and laser technology to organizations throughout the United States.


Faraday Technology, Inc. provides government and commercial clients with R&D services related to electrochemical engineering technology development from bench scale through pilot or pre-production levels.


Q-Peak, Inc. develops unique and innovative solid state laser systems and related technologies as a supplier to government and aerospace prime contractors.


Research Support Instruments develops aerospace instrumentation, conducts scientific research, and provides science and engineering contract support services in physics, optics, calibration, and radiometry.