ZK empowers a wide variety of companies and institutions, ranging from small to large in multiple industries. ZK's customers and users include Fortune 500 companies (such as Barclays, Sun Microsystems, Swiss Re, Oracle, Société Générale, Alcatel-Lucent, State Grid, MMC, China Southern Power Grid), governments (such as USA, Spain, Japan, Australia, China, New Zealand) and tens of thousands of developers in the world.