Epsilon3

About Epsilon3

Every piece of hardware is powered by software, built with software, operated by software. But that software is fractured — a different tool for every function, none built to connect, and most blind to the specialized needs of teams building complex hardware in regulated environments where failure is existential. The result is a program that breaks along the seams of its own tools: the thread snaps between phases, context disappears in the handoffs, and the teams designing, building, testing, operating, and maintaining the hardware fall out of sync. In space, energy, defense, and aerospace, that gap is a failed audit, a quality escape, or a missed step that ends a mission. Epsilon3 is the lifecycle execution platform for complex hardware: one connected thread that carries context and executes work across every phase — design, engineering, manufacturing, test, training, operations, and sustainment, from first article to decades in the field. Purpose-built by operators, for operators, for the industries that can't afford to get it wrong. Every procedure, part, test, and deviation is connected, in context, and traceable. The result: 98% fewer errors, 10 hours back per operator per week, and 20x faster execution. Trusted by NASA, Blue Origin, Sierra Space, Redwire, AeroVironment, and Commonwealth Fusion Systems. Built by engineering leaders from SpaceX, NASA, and Google. Backed by Y Combinator and Lux Capital.