California Nanotechnologies Corp. engages in the research, development, and production of nanocrystalline materials through grain size reduction. The company provides spark plasma/ field assisted sintering (SPS/FAST); hot pressing; sintering; diffusion bonding; hot isostatic pressing; vacuum pressureless sintering; cryogenic milling, inert gas milling, planetary ball milling, and pulverizing; and material development and testing services, including mechanical alloying, composites/non-composites, mechanical testing, sample fabrication, prototyping, scanning electron microscopy analysis, and particle size analysis. It also offers SPS starter accessory kits, SPS graphite tooling, SPS systems, tungsten carbide tooling, SPS graphite crucibles, carbon graphite foil/paper, carbon felt and yarn, and quartz glass windows; and Engemini, an SPS/FAST modeling software. It serves aerospace, defense, automotive, medical, and sports and recreation industries. The company is headquartered in Cerritos, California.