First Resonance | 4,807 followers on LinkedIn. ION is the modern Factory OS that innovative manufacturers trust for speed, collaboration, and real-time visibility. | First Resonance builds the ION Factory OS, the leading Factory OS powering leading manufacturers in aviation, energy, automotive, and more. Its flexibility, first-class API, and data platform allow manufacturers to conduct the day-to-day operations in the factories and connect workflows to power modern operations from production to supply chain procurement and quality. Hardware companies of every size - from startups to large-scale manufacturers - use ION to reliably track and manage parts, processes, and data through their product life cycle.