Office Home Office Home About Us Key Topics Contact Us Events HomeBureaus & Offices > Deputy Secretary of State for Management and Resources ...Office of Small and Disadvantaged Business Utilization hide Office of Small and Disadvantaged Business Utilization OSDBU Mission The Office of Small and Disadvantaged Business Utilization (OSDBU) works with industry partners, the acquisition corps, and program offices to maximize prime and subcontracting opportunities for U.S. Small Businesses. Our efforts help maintain a viable and innovative industrial base, promote worldwide economic development, and support mission critical functions for every bureau within the Department of State.