IEH Corp
IEH Corp designs and manufactures high-performance electronic connectors and interconnect solutions for demanding applications where reliability matters, especially defense, aerospace, and space. The company sells both directly and through distributors, and it also develops custom and hybrid connector products for customer-specific requirements.
Fiscal year 2026 · change from previous year
Development 2021–2026
Business
Share of revenueCatalog PCB and interconnect products used in defense and aerospace assemblies.
MIL-spec and QPL-listed products sold into defense programs and contractors.
Engineered connectors tailored to customer-specific electrical and mechanical needs.
Newer products for data transmission and combined power/signal applications.
Customers
IEH sells mainly to OEMs, defense contractors, and distributors that resell into aerospace and other industrial end markets. Its largest demand base comes from defense programs, with additional exposure to commercial aerospace, space launch, medical device, oil and gas, industrial, test equipment, and commercial electronics customers. The company’s products are often embedded in larger systems, so customers buy for qualification, reliability, and application-specific engineering support.
Buy MIL-spec and QPL-listed connectors for defense platforms and programs; this is the largest revenue base.
Buy high-reliability connectors for aircraft systems and assemblies, often with strict qualification requirements.
Buy specialized connectors for commercial space applications where performance and reliability are critical.
Buy ruggedized interconnects for specialized equipment and harsh-environment applications.
Help reach OEM accounts across multiple regions and extend market coverage without direct selling everywhere.
Strategy
IEH is focused on expanding its connector portfolio with new high-speed and hybrid products while continuing to win program-based demand in defense and aerospace. Management also emphasizes custom engineering, direct/distributor coverage, and maintaining quality certifications that support qualification on demanding customer platforms.
Defense is the largest revenue source and supports qualification-based demand.
New high-speed and hybrid products can open additional applications and reduce reliance on legacy lines.
Customer-specific designs improve stickiness and help win demanding programs.
Geography
Q4/2025IEH is based in the United States, with manufacturing operations in Brooklyn, New York and Allentown, Pennsylvania. It sells across the U.S. and internationally through direct channels and 21 independent sales representatives and distributors, with international sales representing a small but meaningful portion of revenue. The company also has exposure to China and other overseas markets, which adds geopolitical, tariff, and supply-chain sensitivity.
Risks
IEH’s revenue is concentrated in a few large customers and in defense-related programs, so order timing or customer loss can materially affect results. The business also faces cyclical demand, international exposure, tariffs, supply-chain disruption, and geopolitical risk, while its small scale makes it sensitive to execution issues at its manufacturing sites.
- Customer concentrationImpact: HighLikelihood: Medium
A small number of customers account for a large share of revenue, so losing one would materially hurt sales.
Exposure: Two customers were 31.9% of fiscal 2025 net revenues.
- Defense program timing and demand variabilityImpact: HighLikelihood: Medium
Revenue depends on ordering cycles and program execution timing, which can move materially between periods.
Exposure: Defense was 65.7% of fiscal 2025 revenue.
- Operational disruption at manufacturing sitesImpact: HighLikelihood: Medium
Production is concentrated in Brooklyn and Allentown, so outages or cyber incidents could halt shipments.
Exposure: Two U.S. manufacturing locations.
- Geopolitical and tariff exposureImpact: MediumLikelihood: Medium
Global conflicts and tariff changes can raise costs, disrupt sourcing, and affect international demand.
Exposure: International sales and global sourcing.
Accounting
Judgemental itemsConnector sales are tied to order timing and shipment/acceptance patterns, which can create quarter-to-quarter volatility.
Impact: Affects reported revenue and margin timing.
As a manufacturer of specialized parts, excess or obsolete inventory risk can rise if demand shifts.
Impact: Can affect cost of sales and gross margin.
Profitability has been volatile, so tax provisions and benefits can vary materially by period.
Impact: Affects net income and effective tax rate.
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Last updated: 24/09/2026