Leach International Corp

Leach International Corp, doing business as Esterline Power Systems, manufactures and supplies electromagnetic relays, solid-state relays, hybrid relays, contactors, transformers, and related power switching and control components to the federal government as a prime contractor (93% of recent awards) across full-and-open competitive procurements. The company is a subsidiary of TransDigm Group Incorporated, headquartered in Buena Park, California, and competes in the Relay and Industrial Control Manufacturing sector (NAICS 335314) without SBA set-aside designations.

Leach International's customer concentration is extreme and customer-specific. The Defense Logistics Agency Land and Maritime dominates the footprint with 1,140 awards (87% of award count) carrying 54.1 million dollars in combined potential value—a position so dominant that the next four customers (Department of the Army Materiel Command Contracting Command Detroit Arsenal, Department of the Army Materiel Command Aviation and Missile Life Cycle Management Command, Department of the Navy Information Warfare Systems Command, and Defense Logistics Agency Aviation) together represent less than 5% of potential value. Nearly all DLA Land and Maritime work consists of firm-fixed-price purchase orders for qualified products list (QPL) electromagnetic relay components, with orders ranging from under $5,000 to over $600,000 per award. Representative examples include a $261.1 million electromagnetic relay order (225 units, NSN 5945012625414, ultimate completion November 2026), a $227.9 million order for 253 electromagnetic relay units (NSN 5945008097480, December 2026 completion), and a $507.9 million contact set relay order (191 units, NSN 5945015525106, August 2026 completion). A notable non-DLA award came from NASA's Shared Services Center, a $25,962 sole-source purchase order in March 2026 for a solid-state power controller for the System-Agnostic Arc Fault Implementor testbench at Glenn Research Center.

Leach International holds a single-award Indefinite Delivery Contract from DLA Land and Maritime (SPM7MX13D0124, $250,000 ceiling, October 2026 completion) for solid-state relays. A larger parent IDC, SPM7MX13D0124, accounts for 377 task orders with $6.1 million in combined potential value. The vendor also places work under other DLA and Navy indefinite delivery vehicles, though these carry lower order volumes. All work is performed at Leach International's Buena Park facility.

Activity has grown sharply—from 62 awards in 2022 to 209 in 2025, a 237% increase over three years. The recompete cliff shows 122 awards (combined potential value $11.1 million) reaching ultimate completion within the next twenty-four months, indicating significant contract renewal risk across the DLA Land and Maritime relay portfolio.

Leach International operates as a subcontractor on major defense platforms. Named prime contractors include General Dynamics Land Systems (Abrams M1A1 tank upgrades to SEPv3 variant), Boeing (F-15 EPAWSS low-rate initial production, Minuteman III guidance system engineering), Lockheed Martin (Patriot Advanced Capability-3 missile production, Aegis fire control systems), Bell Boeing Joint Project Office (common aerospace commodities across multiple performance-based logistics task orders), Laurel Technologies Partnership (USN TI-22 radar production and AN/SPQ-9B anti-ship missile defense radar), Eaglepicher Technologies (battery storage electronic control units), Sierra Nevada Company (Adaptable Communications Suite 4.0 production), and Tyonek Services Overhaul Facility (C-5M Galaxy aircraft electrical systems integration). Sub work clusters around relays, switches, contactors, and electrical control commodities supporting active defense platforms.

Leach International's federal footprint is narrow in scope and customer-dependent. The company operates as a high-volume, commodity electrical-component supplier to one primary customer (DLA Land and Maritime), with relay manufacturing comprising 86% of recent awards by count. The subcontractor footprint demonstrates integration into major aircraft and missile programs, but prime-contract exposure outside DLA is minimal. The company's award history reflects stable, repetitive, full-and-open competitive purchasing from a single, high-volume customer—a concentration that creates both sustained demand and significant recompete exposure.