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Company Profile

Nuclear Shielding Supplies & Service (NSS), along with Universal Minerals International, Inc. (UMII), Minerals Research, Inc. (MRI), Ballast Technologies, Inc. (BTI), and NSS sister company Shielding Construction Solutions, Inc. (SCS), which focusses on installation of shielding materials and systems, are located in Tucson, Arizona. Together, these companies are commonly owned and built around a dedication to the mining, processing, researching  and marketing of various metallic and non-metallic industrial minerals and slags.


NSS is a worldwide leader in the supply of high density (heavyweight) mineral aggregates for producing

  • high density (heavyweight) concrete  

  • high density (heavyweight) modular concrete blocks 

  • fillers 


NSS also supplies additives for the attenuation of thermal neutrons in high density (heavyweight) and conventional concrete. 


NSS high density (heavyweight) mineral aggregates are utilized in customized high density (heavyweight) concrete applications for: 

  • radiation shielding in cancer treatment centers,

  • nuclear power plants 

  • collegiate test reactors 

  • national laboratories & research facilities, and for

  • storage/transport casks for radioactive waste


NSS maintains bulk stockpiles of processed high density (heavyweight) aggregates at strategic locations around the United States, Canada, and in various countries around the world in order to meet short notice delivery requirements.

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