Atlassian /ətˈlæsiən/ is an Australian enterprise software company that develops products geared towards software developers and project managers. It is best known for its issue tracking application, JIRA, and its team collaboration product, Confluence. Atlassian serves over 35,000 customers globally, including 85 of the Fortune 100.Atlassian is headquartered in Sydney, Australia. It also has offices in Amsterdam, Austin, Manila, San Francisco and Yokohama.