Celestica Inc. is a leading global provider of electronics manufacturing services (EMS) and supply chain solutions. The company operates through two primary segments: Connectivity & Cloud Solutions (CCS) and Advanced Technology Solutions (ATS). The CCS segment is the primary revenue driver, serving hyperscalers and data center customers with servers, storage, networking, and rack-level platforms. This segment increasingly leverages Celestica's Hardware Platform Solutions (HPS) original design model and accounts for the vast majority of revenue, with the Communications end market alone representing over 50% of total sales. The ATS segment, which contributes roughly a quarter of total revenue, serves the aerospace and defense, industrial, health tech, and capital equipment (including semiconductor and robotics equipment) markets. Celestica maintains a highly globalized geographic footprint, with approximately 75% of its revenue produced in Asia, supported by extensive operations across North America and Europe. The company's competitive advantage lies in its end-to-end product lifecycle capabilities, from design and engineering to complex manufacturing and after-market services. However, its business model features high customer concentration, with its top ten customers generating nearly 80% of total revenue.