Sarah Thacker

Sarah Thacker serves as a procurement professional within the Defense Information Systems Agency (DISA), supporting the agency’s mission to deliver secure, resilient, and interoperable information systems for Department of Defense command, control, and intelligence operations. She manages a diverse portfolio of acquisitions focused on mission-critical IT sustainment, cybersecurity enablement, and infrastructure modernization, ensuring alignment with DoD standards for C4I resilience. Her work spans contract planning, solicitation development, and award execution for technical services that underpin national defense communications networks. Thacker maintains a consistent working relationship with EXPRESSION NETWORKS LLC, a primary contractor supporting DISA’s IT modernization and systems integration efforts. Her procurement patterns reflect a preference for established vendors with proven capabilities in secure cloud environments, network operations, and mission-critical support services. While she engages with a range of industry partners, her contracting approach emphasizes performance-based outcomes and long-term service sustainment over transactional procurement. Her set-aside preferences show a strong orientation toward open competition, with 87.5% of awards issued without socioeconomic set-asides. However, she actively supports small business participation through Total Small Business Set-Asides under FAR 19.5, demonstrating a measured but deliberate commitment to expanding vendor diversity without compromising mission requirements or technical rigor. Thacker’s procurement focus centers on NAICS categories including 541519 (Other Computer Related Services), 561210 (Facilities Support Services), and 561611 (Investigation and Personal Background Check Services), reflecting DISA’s need for integrated IT support, secure facility operations, and personnel vetting capabilities. She also oversees acquisitions tied to 611310 (Colleges, Universities, and Professional Schools), indicating engagement with academic and research institutions for specialized cybersecurity training and workforce development. Her domain expertise lies in securing the enterprise IT ecosystem that enables global military readiness.