Direct Answer
41 SEC filers are classified under the Standard Industrial Classification codes that describe the electronics manufacturing services industry, and their latest annual reports show $98.7 billion of combined revenue and a median operating margin of -3.5%. Investors should still evaluate its revenue model, industry-specific KPIs, valuation framework and the risks that can change the group's economics.
Industry Overview
Electronics manufacturing services companies assemble and test electronic products and often design and source parts for customers across industries. Revenue is large, margins are thin, and results depend on customer mix and execution. The first numbers to compare across companies here are revenue and backlog, operating margin and customer concentration.
Key Industry Metrics
- Revenue and backlog: Sales and orders awaiting delivery. Backlog shows customer programs in progress, though customers can adjust volumes quickly if end demand shifts.
- Operating margin: Profit after materials and operating costs as a share of revenue. Margins are thin because components are passed through, so efficiency and mix matter a great deal.
- Customer concentration: The share of revenue from a few brand owners. Losing or reducing a large program can sharply reduce volume, so a high share adds risk.
- Inventory turns: How many times inventory is sold and replaced in a year. Faster turns free cash and cut write-down risk, while slow turns tie up money in parts.
- Capacity utilization: The share of production capacity in use. High utilization spreads fixed costs and lifts margin, and low utilization leaves plants underused when programs end.
Primary Macro Drivers
- Customer outsourcing: As brands outsource production, assembly providers gain programs, so outsourcing decisions drive revenue and backlog.
- Server and AI hardware demand: AI and cloud hardware has higher value per unit and complex builds, lifting revenue and potentially mix and margin.
- Reshoring: Customers moving production closer to end markets add plants and programs for providers with local capacity, affecting utilization and capex.
- Component availability: Parts shortages delay assembly and tie up inventory, so supply determines shipments and shows up in inventory turns.
Major Risks
- Thin margins: Most of revenue is passed-through parts, so small cost or yield slips erase operating margin; watch operating margin each quarter.
- Customer concentration: A few brands account for much revenue, so a program loss can leave capacity idle; watch top-customer share and utilization.
- Inventory write-downs: Holding inventory for customers ties up cash and risks write-downs if demand drops; watch inventory turns and any customer-specific reserves.
- Geopolitical supply risk: Trade barriers or regional conflict can disrupt sourcing or force line moves; watch plant locations, sourcing exposure and commentary on shifting production.
Industry Characteristics
| Characteristic | Profile |
|---|---|
| Cyclicality | Cyclical |
| Capital Intensity | Medium |
| Regulatory Intensity | Low |
| Industry Maturity | Mature |
| Geographic Importance | Global |
Electronics Manufacturing Services Filers in the SEC Record
41 companies with annual reports in the dataset are classified by the SEC in the Standard Industrial Classification codes 3672, 3679, 3690. Their latest fiscal years end between 2023 and 2026, and together they reported $98.7 billion of revenue. Median revenue growth over the prior year was 8.1%. Median operating margin was -3.5% and median net margin -6.8%. Median total liabilities were 52% of total assets, and 16 of 41 reported a profit in their latest year.
| Company | Revenue | Growth | Operating margin | Net margin | Year |
|---|---|---|---|---|---|
| Jabil Inc | $29.8 billion | 3.2% | 4.0% | 2.2% | FY 2025 |
| Flex Ltd. | $27.9 billion | 8.1% | 4.9% | 3.2% | FY 2026 |
| Vertiv Holdings Co | $10.2 billion | 27.7% | 17.9% | 13.0% | FY 2025 |
| Sanmina Corp | $8.1 billion | 7.4% | 4.4% | 3.0% | FY 2025 |
| Enersys | $3.8 billion | 3.7% | 11.4% | 7.8% | FY 2026 |
| Ttm Technologies Inc | $2.9 billion | 19.0% | 9.1% | 6.1% | FY 2025 |
| Atkore Inc. | $2.9 billion | -11.0% | 0.8% | -0.5% | FY 2025 |
| Spectrum Brands Holdings, Inc. | $2.8 billion | -5.2% | 4.4% | 3.6% | FY 2025 |
The 8 largest of 41 by revenue. Source: each company's own annual report as filed with the SEC (XBRL data), figures in U.S. dollars. A company's SIC code reflects its main business as the SEC records it, so it can differ from how an index provider or analyst classifies the company, and a diversified group appears under only one code.
Where to Go Next
The Electronics Manufacturing Services guide describes how the industry earns money, what to measure and what can go wrong. To see how it compares, read the neighbouring industries in the same sector, then apply the same checks to a specific company.
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Frequently Asked Questions
What are the main KPIs for the Electronics Manufacturing Services industry?
Key performance indicators for the Electronics Manufacturing Services industry include: Revenue and backlog, Operating margin, Customer concentration, Inventory turns, Capacity utilization. Which matter most depends on the company's model, so compare them across several companies rather than relying on one.
How cyclical is the Electronics Manufacturing Services industry?
The Electronics Manufacturing Services industry is cyclical, meaning its revenues and earnings tend to expand during economic expansions and contract during downturns. Investors should monitor leading economic indicators and interest rate trends when evaluating timing.
What are the biggest risks in the Electronics Manufacturing Services industry?
The primary risks for Electronics Manufacturing Services companies include: Thin margins, Customer concentration, Inventory write-downs, Geopolitical supply risk. Investors should assess each company's exposure to these factors and its track record of navigating them.