Rebecca A. Vaccari

Rebecca A. Vaccari serves as a key procurement professional within the Public Buildings Service’s R5 Acquisition Management Division, overseeing the acquisition of facility support and infrastructure modernization services for federal buildings nationwide. She manages a diverse portfolio of construction-related contracts, including interior renovations, building systems upgrades, and mission-critical operations support, ensuring compliance with federal acquisition regulations and alignment with GSA’s mission to maintain a safe, efficient, and sustainable federal real estate portfolio. Her work directly supports the modernization of aging infrastructure through strategic contracting practices that prioritize performance, sustainability, and operational readiness. Vaccari maintains a consistent working relationship with MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC, a primary contractor for facility upgrades and site development tasks. Her procurement approach emphasizes long-term vendor partnerships grounded in reliability, technical proficiency, and adherence to federal construction standards. She routinely engages with contractors specializing in building systems integration, mechanical installations, and facility maintenance, fostering collaborative relationships that ensure timely delivery of complex, high-stakes projects across federal campuses. Her contracting patterns reflect a strong commitment to small business participation, with over half of her awards designated as Total Small Business Set-Asides under FAR 19.5. She also actively utilizes HUBZone and Women-Owned Small Business set-asides, demonstrating a deliberate effort to expand economic opportunity among underserved communities. This socioeconomic focus aligns with GSA’s broader goals to promote equitable access to federal contracting while enhancing competition and innovation. Vaccari’s primary procurement focus lies in NAICS 238290 (Other Building Equipment Contractors) and 238220 (Plumbing, Heating, and Air-Conditioning Contractors), reflecting her specialization in mechanical, electrical, and building systems integration. She also regularly procures landscaping services (561730) and janitorial services (561720), underscoring her role in managing the full lifecycle of facility operations. Her expertise spans technical domains including HVAC retrofits, energy-efficient building controls, and integrated facility maintenance, positioning her as a subject matter expert in federal infrastructure procurement.