Mary E Castillo

Mary E. Castillo serves as a Contract Specialist within the FA3016 502 Contracting Clinic under the Department of the Air Force, where she manages the acquisition of mission-critical facility, medical, and infrastructure support services essential to sustaining Air Force operational readiness. Her portfolio encompasses the full lifecycle of contract actions—from requirements validation and market research to solicitation, award, and closeout—ensuring compliance with FAR and AFMC-specific procurement policies. She specializes in complex service contracts requiring technical oversight, particularly in maintenance, communications, and facility modernization, aligning acquisitions with the agency’s strategic goals of infrastructure resilience and technological advancement. Castillo 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 vendors are frequently engaged for specialized maintenance, logistics support, and facility operations services, reflecting a pattern of repeat engagement with established performers known for reliability and technical proficiency in niche service domains. Her contracting approach emphasizes performance-based outcomes and contractor accountability through well-defined SOWs and evaluation criteria. Her procurement strategy reflects a nearly even split between open competitions and Total Small Business Set-Asides under FAR 19.5, demonstrating a strong institutional commitment to small business participation. While no single socioeconomic category dominates, her consistent use of small business set-asides underscores a deliberate effort to broaden vendor diversity and enhance competition within the small business community. Castillo’s primary NAICS focus areas include commercial and industrial machinery repair (811310), miscellaneous fabricated metal product manufacturing (332999), and surprisingly, animal production (112990) and dog/cat food manufacturing (311111)—indicating procurement for on-base animal care and service animal support programs. She also manages ordnance-related maintenance (332994), revealing technical expertise in defense-specific logistics and safety-compliant procurement for sensitive operational environments.