A07 Sole Source Justification (Redacted).pdf

This Sole Source Justification document details the Defense Counterintelligence and Security Agency's (DCSA) intent to procure Microsoft Unified Enterprise Support Services (MS UESS) through a sole source acquisition. The six-month contract will run from 28 September 2025 through 27 March 2026, funded by Fiscal Year 2025 Defense Working Capital Funds and Operations and Maintenance funds. DCSA requires the renewal of MS UESS to ensure optimal performance, stability, and security of its enterprise-wide Microsoft product ecosystem, including comprehensive, proactive support services with guaranteed response times covering all DCSA locations.

The justification emphasizes that Microsoft is the only viable provider for these services, due to its proprietary knowledge of its products and critical need to maintain DCSA's Microsoft-based IT infrastructure. The support includes direct access to Microsoft developers, diagnostic tools, debugging resources, seamless environment integration, and specialized security update management. Market research confirmed that only Microsoft can provide the necessary expertise, source code access, and direct support, with value-added resellers not being authorized to perform the full scope of UESS services. The contract will help DCSA maintain mission-critical systems, secure its technological environment, and support its workforce and supply chains.