Plexus Corp provides electronics manufacturing services to companies in the networking & communications, healthcare & life sciences, industrial & commercial, and defense, security, & aerospace industries. With headquarters in Neenah, Wisconsin, Plexus has facilities in the United States, Scotland, Germany, Romania, Mexico, Malaysia, and China. Founded in 1979, Plexus provides product conceptualization, design, commercialization, manufacturing, fulfillment, and aftermarket services to its customers.

Plexus offers product development and conceptualization; and product design and value-engineering solutions, including program management, feasibility studies, product conceptualization, specification development for product features and functionality, circuit design, field programmable gate array design, printed circuit board layout, embedded software design, mechanical design, test specifications development and product verification testing, and automated production solutions. The company also provides commercialization solutions, such as prototyping, new product introduction, design for supply chain, test development, and transition management; manufacturing solutions; fulfillment and logistics solutions. In addition, it offers sustaining solutions, which include aftermarket services, including receiving and diagnostic analysis on returned goods, warranty and non-warranty repair, refurbishment and upgrade to outdated products, and field replenishment strategies; sustaining engineering solutions comprising redesign for cost reduction, enhanced reliability and obsolescence mitigation, failure and root cause analysis, and regulatory compliance surveillance and remediation; and sustaining supply chain solutions consisting of reverse logistics management, logistics optimization, component life-cycle analysis, and alternate component sourcing and supplier qualification.