The company that builds the “rails” under the AI boom

Most AI charts obsess over model sizes and GPU flops, but almost none show the metal that has to carry all that compute: the switches, servers and densely wired racks that turn power and chips into something hyperscalers and defense clients can actually run at scale.

Sitting in that unglamorous layer is a manufacturer that began life as an IBM spin‑off and has since reinvented itself as a specialist contractor for AI data centers, assembling custom systems for cloud giants, chip makers and government programs instead of pushing a consumer brand. Over the last four years, its revenue has climbed from roughly 5.6 billion to more than 12 billion dollars, net income has compounded by several dozen percent a year and returns on invested capital have moved into territory investors usually associate with software, not with factories and contract manufacturing.

Top points of analysis

• The company has shifted from a traditional EMS assembly plant over the past decade to an engineering partner for…