Kosiak Consulting, L.L.C.

Kosiak Consulting, L.L.C. is a for-profit sole proprietorship based in Gaithersburg, Maryland, that provides research, analysis, and strategic advisory services to the federal government. The firm has maintained active registration in SAM.gov since February 28, 2020, with current registration valid through October 29, 2026. Kosiak Consulting specializes in delivering research-driven insights and analytical reports that support government decision-making across defense and strategic policy domains.

The company has secured three prime federal contract awards exclusively from the Washington Headquarters Service, a Defense agency component, totaling approximately $693,013 in ceiling values. These contracts reflect a consistent focus on analytical and research services without set-aside designations. The earliest award, dated March 18, 2021, was a $182,525 firm fixed-price purchase order for research and studies services with a progress report deliverable, completed by March 21, 2023. Subsequently, the firm received a $199,728 purchase order awarded on March 15, 2023, for briefings and reports on investment patterns, designated as the "Kosiak Business Analysis Report," with completion by March 14, 2025. Most recently, on September 30, 2025, Kosiak Consulting was awarded a $310,760 firm fixed-price purchase order for a comprehensive research project examining constraints on military spending in pre-modern Chinese history, scheduled for completion on September 29, 2027. All work has been performed at the contractor's Gaithersburg, Maryland facility, and no subcontractor partnerships have been identified in the award documentation. The progression of these contracts demonstrates the firm's established relationship with the Washington Headquarters Service and its capability to deliver complex historical, analytical, and strategic research products to the Department of Defense.