William Underhill

William D. Underhill serves as a key procurement lead within the FA3016 502 Cons Cl under the Department of the Air Force, responsible for managing complex acquisitions that sustain mission-critical Air Force installations. His portfolio centers on facility maintenance, medical support services, and infrastructure modernization, ensuring operational readiness through timely and compliant contract execution. He routinely handles service-based contracts under FAR Part 12 and Part 37, with a focus on performance-based acquisition methods that emphasize outcomes over inputs. His work directly supports the agency’s strategic priorities in upgrading communications systems, airfield operations, and personnel readiness environments. Underhill maintains consistent working relationships with a core group of contractors including PERRY MANAGEMENT CORP OF SOUTH DAKOTA, L.L.C., WILLIAM T BROOKS & ASSOCIATES INC, CITADEL FEDERAL SOLUTIONS LLC, NEXLEGACY LLC, and AJ COMMERCIAL SERVICES, INC. These partnerships reflect a preference for experienced, non-traditional vendors capable of delivering specialized maintenance, logistics, and technical support services. His contracting patterns indicate a reliance on established contractors with proven performance histories, often leveraging indefinite-delivery/indefinite-quantity (IDIQ) and task-order mechanisms to ensure agile response to dynamic installation needs. His procurement approach prioritizes broad market access, with 61.3% of awards issued without set-asides and 38.7% allocated to Total Small Business Set-Asides under FAR 19.5. While he does not routinely favor specific socioeconomic categories like 8(a), HUBZone, or SDVOSB, his consistent use of small business set-asides demonstrates a deliberate commitment to fostering competition and expanding vendor diversity within the installation support sector. Underhill’s primary NAICS focus includes 711510 (Independent Artists, Writers, and Performers), reflecting procurement of training and educational content development; 611699 (Miscellaneous Schools and Instruction), indicating support for technical and safety instruction programs; and 511210 (Software Publishers), pointing to custom software and digital training tools. Additional activity in 314910 and 333912 suggests niche procurement of specialized textile products and air compression systems for facility operations, underscoring his technical acumen across diverse, non-traditional defense support domains.