Environmental engineering company Versar is well-versed in keeping the homeland clean and secure. The company's infrastructure and management services business, which accounts for most of Versar's sales, helps clients with six main tasks: compliance with environmental regulations, conservation of natural resources, construction oversight, engineering and design, pollution prevention, and restoration of contaminated sites. Major customers include the US Department of Defense and the US Environmental Protection Agency. Subsidiary GEOMET Technologies, which constitutes Versar's national defense business segment, makes biohazard suits for agencies involved in emergency response and counterterrorism efforts.