Sift

Sift (Sift Stack, Inc.) is a unified observability platform for mission-critical hardware, enabling engineers to ingest, store, visualize, and analyze high-volume telemetry data across aerospace, defense, robotics, and energy systems. Built by ex-SpaceX engineers, it replaces fragmented, bespoke tooling with a single real-time platform covering the full hardware development lifecycle—from R&D through manufacturing and operations. Its customers include companies building spacecraft, autonomous vehicles, defense systems, and satellite constellations.