Daryl S. Duenas

Daryl S. Duenas serves as a key procurement lead within W2SN Endist Japan, operating under the Department of the Army, where he manages the acquisition of critical infrastructure projects essential to sustaining U.S. military operations across the Indo-Pacific region. Responsible for overseeing the planning, solicitation, and award of construction contracts, Duenas ensures alignment with Army engineering standards and force readiness objectives. His portfolio primarily encompasses commercial and institutional building construction, as well as civil works such as roadway and bridge infrastructure, supporting facilities for Army and Air Force personnel and their families. He plays a central role in executing the agency’s mission to modernize and maintain garrison infrastructure through compliant, timely, and efficient contracting practices. Duenas maintains longstanding relationships with a core group of experienced contractors, including L1 Enterprises Incorporated, Gilbane Federal, Maeda-Samsung-KGC-Onaka Joint Venture, Ichiken Co., Ltd., and Toyo Construction Co., Ltd. These partnerships reflect a preference for established firms with proven track records in complex, high-stakes construction environments across international theaters. His contracting approach emphasizes performance-based outcomes, rigorous compliance with FAR and DFARS requirements, and collaboration with contractors capable of delivering mission-critical facilities under demanding operational conditions. His procurement patterns show a strong preference for unrestricted competitions, with 88.9% of awards issued under no set-aside provisions, indicating a focus on competitive best-value outcomes rather than socioeconomic set-asides. Only 11.1% of awards utilize the Local Area Set-Aside authority under FAR 26.2, suggesting targeted support for regional Japanese vendors when local capacity and logistics justify it, rather than broad small business mandates. Duenas specializes in NAICS 236220 (Commercial and Institutional Building Construction), which accounts for 75% of his acquisitions, including barracks, administrative buildings, and medical facilities, alongside NAICS 237310 (Highway, Street, and Bridge Construction) for transportation infrastructure. His technical expertise lies in managing large-scale, multi-year construction programs requiring coordination with military engineers, environmental regulators, and host-nation authorities to ensure compliance with both U.S. and Japanese regulatory frameworks.