Brian H Weiss

Brian H. Weiss serves as a Contract Specialist within the Public Buildings Service’s R5 Acquisition Management Division, where he plays a pivotal role in executing the federal government’s physical infrastructure modernization mission. He manages the full lifecycle of construction and facility support contracts, with a focus on interior renovations, building systems upgrades, and mission-critical operations for federal buildings nationwide. His portfolio primarily encompasses procurement actions under the Federal Acquisition Regulation (FAR), including competitive sealed bidding and negotiated acquisitions, ensuring compliance with federal standards for safety, sustainability, and efficiency. Weiss collaborates closely with project engineers, facility managers, and legal advisors to align contracting strategies with agency priorities and regulatory requirements. Weiss maintains a consistent working relationship with MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC, a key contractor for complex renovation and site development tasks. His contracting patterns reflect a preference for established, high-performing vendors with proven experience in federal facility projects, while also fostering competitive environments to ensure value and accountability. He engages contractors across multiple disciplines—including construction, mechanical systems, and facility services—to deliver integrated, mission-ready outcomes under time-sensitive schedules. While the majority of his acquisitions are conducted as unrestricted competitions (77.2%), Weiss demonstrates a deliberate commitment to small business participation, regularly structuring procurements as Total Small Business Set-Asides (19.3%) and 8(a) competed contracts (3.5%). His socioeconomic contracting approach aligns with GSA’s goals to expand opportunities for small disadvantaged businesses while maintaining rigorous performance standards. His technical expertise centers on NAICS 236220 (Commercial and Institutional Building Construction) and 238220 (Plumbing, Heating, and Air-Conditioning Contractors), reflecting deep familiarity with building envelope systems, HVAC integration, and interior fit-outs. He also routinely procures architectural services (541310) and janitorial support (561720), demonstrating a holistic understanding of facility lifecycle management and operational sustainment.