Darby Marsh

Darby Marsh serves as a key procurement lead within the W6QK Acc-rsa office of the Department of the Army, responsible for managing acquisitions critical to the modernization of U.S. Army aerial and missile defense systems. Their work centers on securing advanced aerospace components and mission-critical support services for platforms including the UH-60 Black Hawk and AH-64 Apache helicopters, with a focus on avionics, propulsion subsystems, and sensor integration. Marsh ensures alignment with Army modernization priorities by overseeing full lifecycle procurement activities—from requirements validation to contract award and performance oversight—ensuring technical compliance and operational readiness of next-generation defense systems. While specific contractor names are not publicly designated, Marsh maintains a robust network of Tier 1 aerospace manufacturers and specialized subsystem suppliers with proven expertise in military-grade aircraft parts and auxiliary equipment. Their contracting approach emphasizes technical rigor, performance-based outcomes, and long-term supplier reliability, fostering partnerships with firms capable of meeting stringent MIL-SPEC and DO-160 standards. Vendor relationships are built on sustained performance, engineering collaboration, and rapid response to evolving operational needs in contested environments. Marsh’s procurement portfolio reflects a strict focus on open competition, with 100% of acquisitions conducted under non-set-aside authorities. There is no formal preference for 8(a), HUBZone, or SDVOSB programs, indicating a mission-driven emphasis on technical capability over socioeconomic categorization. This approach prioritizes mission-critical performance and system interoperability, ensuring that procurement decisions are driven by operational necessity rather than socioeconomic targets. The agency’s sole NAICS focus—336413 (Other Aircraft Parts and Auxiliary Equipment Manufacturing)—signals deep specialization in the procurement of precision-engineered aerospace components, including flight control actuators, radar-compatible avionics enclosures, missile guidance interfaces, and ruggedized power distribution units. Marsh’s expertise lies in navigating the complex supply chain for classified and controlled military hardware, ensuring compliance with ITAR, EAR, and defense industrial base resilience requirements.