Mary B. Duke

Mary B. Duke serves as a key procurement lead within the W076 Endist Tulsa office under the Department of the Army, overseeing the acquisition of critical facility support and civil engineering services essential to sustaining military infrastructure. Her responsibilities include managing the full lifecycle of contracts for environmental stewardship, janitorial operations, landscaping, and recreational facility maintenance, ensuring alignment with Army regulatory standards and mission readiness. She routinely handles task orders and indefinite-delivery/indefinite-quantity (IDIQ) contracts under FAR Part 16, prioritizing performance-based outcomes and sustainable operations across Army installations and public lands. Duke maintains consistent working relationships with a core group of experienced contractors, including BL Harbert International LLC, Alberici Constructors Inc., MCMillen, Inc., McKenzie Construction & Site Development LLC, and Perikin Enterprises LLC. These partnerships reflect a preference for firms with demonstrated expertise in heavy civil construction, environmental remediation, and large-scale facility operations. Her procurement approach emphasizes long-term vendor reliability, technical capability, and compliance with federal construction and environmental regulations, fostering stable, performance-driven contractor relationships. A defining feature of Duke’s contracting portfolio is its strong emphasis on small business participation, with over 90% of acquisitions set aside for small businesses under FAR 19.5. She actively promotes socioeconomic inclusion, with a notable focus on Women-Owned Small Businesses and general small business concerns, reflecting a deliberate strategy to broaden vendor diversity while maintaining high performance standards. Her pattern of set-asides underscores a commitment to building a resilient, community-based supply chain aligned with Army sustainability goals. Her primary procurement focus centers on NAICS 561730 (Landscaping Services) and 561720 (Janitorial Services), complemented by significant activity in RV park and campground operations (721211) and broader support services (561990). This reflects deep technical expertise in outdoor facility management, environmental compliance, and maintenance of recreational infrastructure critical to troop morale and installation functionality.