Ducommun Incorporated
Ducommun Incorporated designs and manufactures high-performance engineered products and manufacturing solutions used mainly in aerospace and defense, with additional exposure to industrial and medical end markets. The company operates through two segments, Electronic Systems and Structural Systems, and focuses on complex, customer-specific assemblies where failure is costly and qualification barriers are high.
Fiscal year 2025 · change from previous year
Development 2020–2025
Business
Share of revenueElectronic interconnects, assemblies, and related manufacturing solutions for aerospace, defense, and industrial customers.
Structural aircraft parts, assemblies, and engineered components, including BLR Aerospace products.
Customer-specific manufacturing and build-to-print solutions that combine engineering, tooling, and production support.
Products
Reported · share of revenue- Militaryand Space58.2 %
- Commercial Aerospace37.4 %
- Industrial4.4 %
Source: 10-K/A FY2025, revenue the company reports per product line (SEC XBRL). Shares are of the lines shown and add up to 100 %.
Customers
Ducommun sells primarily to aerospace and defense OEMs, prime contractors, and tiered suppliers, with a meaningful portion of revenue tied to Boeing, RTX, Lockheed Martin, Northrop Grumman, and TransDigm. The company also serves industrial and medical customers, but these are smaller and more diversified end markets. Customers buy Ducommun’s products because they are highly engineered, program-specific, and often embedded in long-cycle platforms where qualification, reliability, and supply continuity matter.
Buys structural and electronic assemblies for commercial aircraft programs, including Boeing-related work, because Ducommun is qualified for complex, high-reliability parts.
Buys mission-critical components and assemblies for military and space platforms, often under long-term subcontract arrangements.
Buys engineered manufacturing solutions and specialized parts where outsourcing, precision, and supply assurance are important.
Buys aerodynamic and performance-enhancing systems through BLR Aerospace for commercial and military aircraft.
Strategy
Ducommun is pushing toward higher-level assemblies and more complex, value-added work to deepen customer integration and improve its competitive position. Management is also using acquisitions and capital spending to broaden capabilities, add aftermarket exposure, and support long-term aerospace and defense contracts. The company continues to invest in tooling, facilities, and manufacturing equipment to win new programs and support consolidation in the A&D supply base.
Higher engineering content and integration should improve differentiation and customer stickiness.
Acquisitions expand product breadth and diversify the customer base in a consolidating A&D supply chain.
Long-cycle programs require ongoing capex, working capital, and financing flexibility.
Geography
Ducommun is a U.S.-based company, and its business is concentrated in North American aerospace and defense supply chains, even though it competes globally. The reports do not provide a country revenue split, but the customer base is anchored by U.S. primes and U.S. government-linked programs, which makes domestic defense spending and commercial aircraft production rates especially important. International demand trends still matter indirectly because they influence Boeing and other platform customers.
Risks
Ducommun is exposed to customer concentration, especially Boeing and RTX, and to production-rate swings in commercial aerospace and defense programs. Its supply chain depends on specialized raw materials and single-source components, while pricing pressure, technology obsolescence, and cybersecurity risk can all erode margins or disrupt operations. Debt service, covenant compliance, and the need for ongoing capital investment add financial risk to an already cyclical industrial business.
- Customer concentration in Boeing and RTXImpact: HighLikelihood: Medium
A large share of revenue comes from a small number of aerospace and defense customers, so production changes can materially affect sales.
Exposure: Top 10 customers were 61% of 2025 revenue; Boeing and RTX were the largest
- Single-source and constrained supplier baseImpact: HighLikelihood: Medium
Some raw materials and components are available only from limited suppliers, creating disruption and cost inflation risk.
Exposure - Leverage and liquidity dependenceImpact: HighLikelihood: Medium
Debt repayment, working capital, and capex needs require steady operating cash flow and access to credit facilities.
Exposure: 2025 Credit Facilities and term loan obligations
- Pricing pressure from major customersImpact: MediumLikelihood: Medium
Large OEMs and primes continue cost containment efforts, which can force lower pricing or less favorable terms.
Exposure: Aerospace and defense subcontract work
- Technology and product obsolescenceImpact: Medium
The company must keep pace with changing manufacturing methods, customer requirements, and regulatory standards.
Exposure: Engineering-intensive aerospace and defense products
Accounting
Judgemental itemsMost contracts are custom builds with no alternative use, so revenue depends on progress estimates and expected costs.
Impact: Can accelerate or defer revenue and gross margin if estimates change
Reported results depend on management's estimate of work performed versus total expected contract cost.
Impact: Affects revenue timing, gross profit, and working capital
Operating and finance leases, plus property sale-leaseback activity, affect balance sheet presentation and cash generation.
Impact: Can change reported assets, liabilities, and investing cash flow
Up-front investment is required for new programs with higher engineering content and complexity.
Impact: Affects depreciation/amortization and near-term earnings
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Last updated: 24/09/2026