Zalevsky established several optical companies, in 1998 he established the Civcom Ltd. which is a pioneer in the development and manufacturing of cost-saving Opto-electronic components and modules. The company was sold to the Brazilian Padtec corporate in 2008 for $80M. He also established Explay, that was one of the pioneers in pico-projectors field. In 2004 he established Xceed Imaging Ltd. The company is developing a new physical lens for EDOF.