Plexus Corp. (PLXS) Business Profile

What it does

Plexus helps other companies design, manufacture and service complex products. Its customers operate in healthcare and life sciences, aerospace and defense, and industrial markets. Their products include medical devices, aerospace and defense equipment, industrial automation systems and semiconductor capital equipment.

The company can work across a product’s life, from early design through production and, later, repair or refurbishment. For example, its engineers can help develop a product, its supply-chain team can source components, and its manufacturing facilities can assemble the finished item. After a product reaches the market, Plexus can manage spare parts, repair it or recover parts at the end of its life.

Plexus generally provides these services for products owned by its customers rather than selling products under its own brand. Apart from certain equipment and software used internally, it does not design or manufacture its own proprietary products. It serves established branded-product companies as well as startups and emerging businesses, including some with their own manufacturing capabilities.

Founded in 1980, Plexus is headquartered in Neenah, Wisconsin. Todd P. Kelsey is its president and chief executive officer. Its operations span the Americas, Asia-Pacific, and Europe, the Middle East and Africa.

How it makes money

Plexus earns revenue by providing engineering, supply-chain, manufacturing and aftermarket services to customers. It organizes its business development around three market sectors, but evaluates financial performance and allocates resources through geographic segments: the Americas, Asia-Pacific, and Europe, the Middle East and Africa. Equipment and personnel generally are not dedicated to a particular market sector.

An engagement can start with product design and development. Plexus also offers prototyping, test design and other services to move a new product into full-scale manufacturing. Once a product is in production, the company can source components, assemble the product and manage the supply chain. Repair, refurbishment, spare-parts management and part recovery provide further work after products are sold.

Most solutions are provided on a turnkey basis: Plexus buys and warehouses the materials needed for assembly. For selected work, customers supply the materials and Plexus provides labor and other assembly services. The company does not describe a standard price list for these arrangements. Its sales efforts seek both new customers and additional engagements with existing ones; ongoing production and service work depend on customer programs and demand.

Revenue is recognized over time when a product has no alternative use to Plexus and the company has an enforceable right to payment, including a reasonable profit margin, for work completed. Otherwise, revenue is generally recognized when control transfers to the customer, typically at shipment or delivery.

Fiscal 2025 net sales increased 1.8% from fiscal 2024; fiscal third-quarter 2026 revenue was $1.305 billion. Fiscal 2025 gross margin was 10.1%, while operating margin was 5.0%. Plexus reported a non-GAAP operating margin of 6.3% for the fiscal third quarter of 2026.

Customers and how it sells

Plexus served approximately 190 customers in fiscal 2025. Its customers range from established companies selling branded products to startups and emerging businesses. Some have manufacturing capabilities of their own; others use Plexus for activities spanning design, production and ongoing service.

The company sells through teams organized by market sector. These teams oversee business development and customer relationships and work with specialists in engineering, supply chain, manufacturing and sustaining services. Sales efforts target both new customers and expanded work with existing ones. Large customers may contract through separate divisions, subsidiaries, production facilities or locations.

No customer accounted for over 10% of sales in fiscal 2025 or 2024. The 10 largest customers represented 49.1% of net sales in fiscal 2025. Industrial customers accounted for 43% of fiscal 2025 sales, and healthcare and life sciences for 40%.

Plexus operates facilities across the Americas, Asia-Pacific, and Europe, the Middle East and Africa. It uses this footprint to support customers’ design, manufacturing and service needs across their supply chains. In fiscal 2025, Asia-Pacific net sales increased 8.1% from fiscal 2024, while sales fell in the other two geographic segments.

Suppliers and costs

Plexus typically buys printed circuit boards and electronic components from manufacturers and authorized distributors. It also sources custom-engineered items such as plastics, sheet metal, motors, sensors and displays from preferred and customer-directed suppliers. Many materials are specific to a designed assembly, and purchases are made using customer forecasts, purchase orders and supplier lead times.

Materials and components, labor and overhead make up most cost of sales. In fiscal 2025, approximately 89% of total cost of sales was variable, and approximately 87% of those variable costs related to materials and components. Plexus’s lower-volume, complex work and regulatory requirements typically require more inventory and selling and administrative spending than some competitors’ work.

Plexus has said its supply chain is tightening and that it is working with customers to secure certain components in advance. It says customers typically fund inventory preplacements made with them. The company uses its own facilities for manufacturing and also employs skilled temporary labor alongside full-time staff to help scale operations.

Competitive position

Plexus competes with other providers of design, manufacturing and related services, as well as with the in-house capabilities of current and potential customers. Some competitors may have more established positions in particular sectors or greater financial, manufacturing or marketing resources. Smaller competitors generally focus on particular sectors and limited geographic areas. No competing company is named in the available business disclosures.

Plexus offers services across a product’s life and operates across several geographic regions. Its manufacturing and engineering facilities meet a baseline quality-management standard, and it has capabilities for assembling finished medical devices to regulatory requirements. Certain facilities also hold additional medical, aerospace and other certifications.

Our reading: Product-lifecycle services and regulatory capabilities can help Plexus compete for complex programs, but they are not exclusive: other providers offer similar services and customers can use internal operations. Our reading: Its geographic footprint can support customers across regions, although competitors may have greater resources or stronger positions in individual markets. Our reading: The specialization also carries costs, because lower volumes, flexible production and demanding requirements generally call for more inventory and administrative spending.

Growth opportunities

Plexus seeks growth by expanding work with existing customers and winning new ones in its three target sectors. Its long-term financial goal is a 9-12% compounded annual revenue growth rate while earning a return on invested capital of 15%. New product launches can move from engineering and prototyping into manufacturing and later service work.

In the fiscal third quarter of 2026, Plexus secured 31 new manufacturing programs representing $255 million in annualized revenue when fully ramped into production. These included a partnership to support battery energy storage systems for data centers. The company also reported $135 million of aerospace and defense wins during the quarter. Such program values describe potential annual revenue at full production, not revenue already earned.

Plexus expects more than 20% revenue growth for fiscal 2026 and sees potential for fiscal 2027 growth above its 9% to 12% goal. It expects growth from aerospace and defense and industrial markets, including semiconductor capital equipment, as well as continued healthcare and life sciences growth.

To support demand, the company is expanding production capacity at a site in Malaysia. It is also investing in technology and operational efficiency. Plexus expects fiscal 2026 capital expenditures of $100 million to $120 million and anticipates a return to free cash flow generation in fiscal 2027.

Structural risks

• Customer demand and technology: Customers’ products may fail to gain commercial acceptance, and rapid technological change or evolving standards can shorten product lives or make products obsolete. Changes in end-market demand can affect Plexus’s revenue.
• Competition: Competitors may be able to operate at lower margins, have lower costs or greater buying power, respond faster to technological change, or be better positioned to compete on price.
• Supply and trade: Material shortages, extended lead times and supplier allocations are inherent risks in electronics. Changing trade rules, tariffs and geopolitical tensions can affect component sourcing, shipments, costs and demand.
• Expansion and new programs: New facilities and program ramps can bring startup costs, excess inventory or capacity, delays and fixed expenses that new business does not fully absorb. Plexus may also struggle to find enough customers, employees or management talent for an expansion.
• People and execution: Plexus depends on its workforce. Difficulty attracting, developing and retaining staff, higher personnel costs or other disruptions may harm the business; it must also keep its technical capabilities and information systems aligned with changing customer needs.

Bottom line

Our reading

Our reading: Plexus is a customer-program business built around complex manufacturing and services, with opportunities to participate from design through aftermarket support (item1). Its regulatory capabilities and geographic reach can help it compete, but customer demand, component availability and the cost of carrying inventory and capacity remain central exposures (item1; item1a; item7). Recent program wins support its growth ambitions, while their annualized value depends on reaching full production (call_prepared).