Leslie A Walling

Leslie A. Walling serves as a Contracting Officer for FA4625 509 Cons Cc within the Department of the Air Force, responsible for managing the acquisition of mission-enabling services critical to sustaining Air Force infrastructure and operational readiness. She oversees the full lifecycle of contracts for facility construction, environmental remediation, and logistics support, ensuring compliance with federal acquisition regulations and alignment with Air Force installation resilience goals. Her portfolio emphasizes timely delivery of technical and construction services that maintain secure, functional, and environmentally compliant bases across the Air Force enterprise. Walling maintains consistent working relationships with a core group of contractors, including MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC for site development and building construction, K & M TRANSPORTATION SERVICES LLC for logistics and transportation support, N2GRATE GOVERNMENT TECHNOLOGY SOLUTIONS, LLC for technical systems integration, and AZTEK COMPUTERS, LLC for IT and equipment procurement. These partnerships reflect a preference for established vendors with proven capabilities in defense-related infrastructure and mission support, fostering reliable performance and compliance with security and safety standards. Her procurement strategy prioritizes open competition, with 66.7% of awards issued without set-asides, while maintaining a strong commitment to small business participation through 33.3% total small business set-asides under FAR 19.5. Though she does not routinely utilize specialized socioeconomic programs like 8(a) or HUBZone, her consistent use of small business set-asides demonstrates a deliberate effort to expand opportunities for qualified small firms in defense-related construction and environmental services. Walling’s primary procurement focus lies in NAICS 562910 (Remediation Services), reflecting her expertise in environmental cleanup, hazardous material management, and soil/water remediation at active and former Air Force installations. She also regularly procures commercial and institutional building construction services under NAICS 236220, demonstrating deep technical knowledge in facility modernization, structural upgrades, and base infrastructure sustainment. Her domain expertise centers on mission-critical environmental and construction services that directly support Air Force readiness and compliance with federal environmental mandates.