Sarah Zwiesler

Sarah E. Zwiesler serves as a Contracting Specialist responsible for managing complex acquisitions in technical and scientific domains. She plays a pivotal role in executing the agency’s procurement mission by ensuring compliance with federal acquisition regulations while delivering mission-critical solutions through competitive, transparent processes. Her portfolio primarily consists of research and development contracts, custom software development, and specialized instrumentation procurement, requiring deep technical understanding and rigorous market analysis to meet evolving operational needs. Zwiesler works closely with program managers and technical evaluators to define requirements, structure solicitations, and evaluate proposals to ensure optimal value and performance outcomes. While no specific contractor relationships are currently identifiable in the data, Zwiesler engages with a diverse pool of vendors ranging from large aerospace and defense contractors to mid-tier technology firms and specialized research organizations. Her procurement approach emphasizes fair competition and technical merit, fostering partnerships with firms capable of delivering high-integrity, innovation-driven solutions in highly regulated environments. She maintains a vendor-neutral stance, prioritizing capability and compliance over established relationships, ensuring open access for qualified offerors. Zwiesler’s contracting patterns reflect a strong preference for full and open competition, with 100% of her awards issued without set-aside designations. This indicates a focus on selecting the most technically capable offerors regardless of socioeconomic status, rather than targeting specific small business categories such as 8(a), HUBZone, or SDVOSB. Her approach aligns with mission-critical requirements where specialized expertise outweighs socioeconomic objectives, though she remains compliant with all applicable small business participation policies. Her primary procurement focus lies in NAICS 541715 (Research and Development in the Physical, Engineering, and Life Sciences), where she acquires advanced scientific services and experimental technologies. She also frequently procures custom computer programming services (NAICS 541511) and specialized aerospace and navigation systems (NAICS 334511), demonstrating expertise in engineering R&D, software-defined systems, and sensor technology domains. Her work supports mission-critical capabilities in defense, aerospace, and scientific innovation.