Atlassian makes team collaboration and work management software used by over 300,000 organizations worldwide, including over 80% of the Fortune 500. Its core products are Jira (project and work tracking), Confluence (knowledge management), Jira Service Management or JSM (IT and service desk), and Loom (asynchronous video). Atlassian's business model is subscription-based, with revenue driven by seat expansion as customers grow, cross-sell of additional products, and upsell to higher-priced Premium and Enterprise editions. Atlassian sells primarily through a self-service, product-led model where customers try, buy, and expand online without a salesperson — a deliberately low-cost go-to-market that the company supplements with a direct sales force for large enterprise accounts. Revenue comes from two main deployment models: Cloud (the majority and growing share) and Data Center, a self-managed on-premise option for large enterprises with compliance requirements that Atlassian is actively migrating to cloud. Atlassian's growth strategy centers on three vectors: expanding wall-to-wall within large enterprise accounts, converting Data Center customers to cloud, and monetizing AI through Atlassian Intelligence (AI embedded in existing apps) and Rovo (an enterprise search and AI agent product included in Premium and Enterprise editions). Atlassian spends heavily on R&D relative to peers and relatively little on sales and marketing, which drives strong free cash flow margins.