aBeam Technologies develops products to improve semiconductor manufacturing and nanofabrication. The firm's products are used to simulate and optimize nanolithography, metrology, maskmaking, and defect inspection, as well as in the design and optimization of semiconductor equipment. Furthermore, the company sells photomasks and e-beam pattern generators. The company has headquarters in California, operates representative offices in Japan, Taiwan, Korea, and Europe, and is connected to a group of physicists and mathematicians in Russia.