Sheri Marcelo

Sheri Marcelo serves as a Purchasing Specialist within the USDA Agricultural Research Service’s Procurement and Workforce Administration office, where she plays a critical role in enabling cutting-edge agricultural science through strategic acquisition of specialized equipment and operational support services. Her responsibilities include managing the full lifecycle of procurements for laboratory instrumentation, animal production resources, and niche transportation solutions essential to field and facility-based research. She ensures compliance with federal acquisition regulations while aligning purchases with the agency’s mission to modernize the infrastructure underpinning national agricultural research efforts. Marcelo maintains consistent partnerships with vendors specializing in analytical laboratory instrumentation, precision animal production systems, and non-scheduled air transport services tailored to remote research sites. Her procurement approach emphasizes technical compatibility, regulatory adherence, and timely delivery to support mission-critical research timelines. While no single contractor dominates her portfolio, she routinely engages with manufacturers and service providers possessing deep domain expertise in agricultural science support, fostering collaborative relationships that prioritize performance, calibration standards, and after-sales technical support. Marcelo’s contracting activity is exclusively non-set-aside, with 100% of her acquisitions conducted under full and open competition. This reflects a strategic emphasis on technical merit and capability over socioeconomic classifications, ensuring that the most qualified vendors—regardless of size or certification—are selected based on their ability to meet the highly specialized demands of USDA-ARS research operations. Her primary procurement focus lies in NAICS 112990 (All Other Animal Production), 334516 (Analytical Laboratory Instrument Manufacturing), and 481219 (Other Nonscheduled Air Transportation). She routinely acquires high-precision diagnostic equipment, livestock management systems, and chartered air services for transporting personnel and samples to field stations, demonstrating deep familiarity with the technical and logistical needs of agricultural science infrastructure.