Onboard Systems International

Onboard Systems International designs and manufactures helicopter external‑load mission equipment — cargo hooks, load‑weighing systems, remote hooks, rescue hoists and cargo winches — serving airframe manufacturers, military forces and commercial helicopter operators worldwide. Founded in 1975 and now part of Signia Aerospace’s mission systems, the company focuses on safety, reliability, responsive MRO, and support services to keep hoist‑equipped aircraft mission‑ready.