Harcosemco LLC

Harcosemco LLC, a Connecticut-based aerospace component manufacturer and subsidiary of TransDigm Group Incorporated, manufactures specialized electrical and mechanical components for military aviation applications as a prime contractor (78% of recent awards) competing in full-and-open procurements with no socioeconomic set-aside posture. The company designs and produces custom cable assemblies, wiring harnesses, thermocouples, terminal lugs, and related electrical assemblies from its Branford, Connecticut facility, with work distributed to Defense Logistics Agency depots throughout the continental United States and overseas locations.

Harcosemco's customer concentration is heavily weighted to DLA Aviation. The top five funding agencies account for 89% of recent awards by count, led decisively by Defense Logistics Agency Aviation (139 awards, $22.1 million combined potential value), followed by the Department of the Army Materiel Command Contracting Command Detroit Arsenal (26 awards), the Department of the Navy Naval Supply Systems Command (17 awards, $1.5 million combined potential value), the Department of the Army Acquisition Support Center PEO Ground Combat Systems (14 awards), and the Defense Logistics Agency Land and Maritime (8 awards). The concentration by potential value is even more acute: DLA Aviation anchors 81% of the $27.3 million combined potential value across all awards. Recent representative prime contracts include a $809,468.22 firm fixed-price purchase order from DLA Aviation awarded December 16, 2025, for cable assembly manufacturing with completion by November 17, 2026; a $672,603.62 delivery order from DLA Aviation awarded May 13, 2024, for 134 cable assemblies (NSN 6150014653148); and a $437,635.00 purchase order from DLA Aviation awarded April 25, 2025, for 73 units of specified cable assemblies (NSN 6150015643572) with delivery to DLA Distribution San Joaquin by March 23, 2026. Harcosemco also holds a single-award indefinite-delivery contract with DLA Aviation (ceiling $350,000, award date March 30, 2026, completion March 29, 2029) and a single-award IDC with DLA Land and Maritime (ceiling $350,000, award date March 30, 2026, completion March 30, 2027) for harness assemblies and related electrical components.

Activity has accelerated substantially, scaling from 6 awards in 2022 to 70 in 2024, with 43 awards in 2025 and 25 in the first five months of 2026. Twenty-six awards with combined potential value of $3.1 million are scheduled for completion inside the next twenty-four months and face recompete exposure. In its subcontractor role, Harcosemco delivers harness assemblies and thermocouples to Honeywell International (the dominant prime partner across TIGER III and other Army rotorcraft engine sustainment programs) and to The Boeing Company (on C-17 Globemaster III sustainment and CH-47F aircraft procurement common aerospace commodities work). The subcontract footprint reflects work on T55-GA-714A engine installation kits, F119 engine sustainment, and other defense airframe and powerplant programs.

Harcosemco's capability portfolio centers on source-controlled drawing cable assemblies, wiring harnesses, and thermocouples (both immersion and general purpose types) for military aircraft electrical systems. The top NAICS categories across the award base are Other Electronic Component Manufacturing (80 awards), Military Armored Vehicle, Tank, and Tank Component Manufacturing (40 awards), and Current-Carrying Wiring Device Manufacturing (17 awards); top PSC codes include Miscellaneous Electric Power and Distribution Equipment (98 awards) and Pressure, Temperature, and Humidity Measuring and Controlling Instruments (31 awards). Obligated dollars ($39.5 million) exceed combined potential value ($27.3 million) by 45%, reflecting invoiced delivery against firm fixed-price purchase orders. Harcosemco competes exclusively in unrestricted procurements without small business or other set-aside designations, positioning it as a full-and-open competitor in the defense aerospace supply base.