Palantir builds software platforms that help large government agencies and commercial enterprises integrate their data and run AI-driven operations. Its core platforms are Foundry, a data operations platform that acts as a central operating system for an organization's data and workflows; AIP, an AI layer that connects LLMs to an organization's actual data via Palantir's proprietary Ontology architecture; Gotham, used by defense and intelligence agencies for operational intelligence and mission planning; and Apollo, which handles continuous software deployment across cloud, on-premises, or edge environments. The Ontology is the architectural foundation across all platforms — a structured, real-time model of an organization's data, logic, and processes that gives AI agents governed and auditable enterprise context. Palantir sells through direct engagement, embedding engineers at customer sites and running intensive "AIP bootcamps" that deploy working AI workflows on a customer's actual data in days, converting prospects quickly and compressing sales cycles. Revenue comes from multi-year software contracts, and customers consistently expand spending over time — net dollar retention was 139% in Q4 FY25. Palantir operates two segments: Government (~54% of revenue), led by U.S. federal agencies including the Department of Defense, and Commercial (~46%), where U.S. growth has been particularly strong. Palantir's workforce is deliberately lean at ~4,400 employees, with adjusted gross margins around 84-86%.