Sierra L. Trepanier

Sierra L. Trepanier serves as a Contract Specialist at the Naval Undersea Warfare Center (NAVAIR N00253), where she plays a critical role in executing complex acquisitions to support the Navy’s undersea warfare capabilities. Her responsibilities encompass the full lifecycle of procurement for advanced technical systems, including research and development, engineering services, and specialized instrumentation for submarine and unmanned undersea vehicle platforms. She ensures compliance with federal acquisition regulations while aligning contract actions with the agency’s strategic priorities in sonar, signal processing, electronic warfare, and ruggedized computing. Trepanier’s portfolio primarily involves technical contracts requiring deep domain expertise in undersea systems and mission-critical electronics. She maintains established working relationships with key contractors including Ordnance Technology Service, Inc., Boh Environmental, L.L.C., Aerospace & Commercial Technologies, LLC, McKenzie Construction & Site Development LLC, and EOS of North America, Inc. These partnerships reflect a consistent reliance on firms capable of delivering specialized engineering, environmental compliance, and precision instrumentation services tailored to harsh undersea environments. Her contracting approach emphasizes performance-based outcomes, technical validation, and long-term sustainment support. Trepanier’s procurement patterns show a strong preference for open competition, with approximately 80.5% of awards issued without set-aside restrictions. However, she actively supports small business participation, with nearly 20% of contracts designated as Total Small Business Set-Asides under FAR 19.5, reflecting a balanced commitment to both mission efficiency and socioeconomic goals. Her primary NAICS focus areas include engineering services (541330), research and development in physical and engineering sciences (541712), and manufacturing of industrial measurement and electrical test instruments (334513, 334515). She regularly procures ruggedized sensors, signal processing hardware, navigation systems, and electronic computing platforms designed for undersea deployment, demonstrating deep familiarity with defense-critical technologies and the unique requirements of naval undersea operations.