Aragon Liebzeit

Aragon Liebzeit serves as the primary procurement lead for W071 Endist Portland under the Department of the Army, overseeing the acquisition of heavy civil engineering and specialized technical services critical to the operational resilience of federal waterways and defense-related infrastructure in the Pacific Northwest. Responsible for managing the full lifecycle of contracts—from solicitation to award and administration—Liebzeit ensures alignment with mission-critical objectives including navigational system maintenance, hydropower facility sustainability, and environmental compliance. Their portfolio predominantly encompasses large-scale infrastructure projects requiring engineering expertise, construction oversight, and long-term maintenance solutions for complex federal assets. Liebzeit maintains established working relationships with a core group of high-capacity contractors including MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC, AECOM B&V PORTLAND AE JV, CORNFORTH-GANNETT FLEMING, STANTEC CONSULTING SERVICES INC., and TETRA TECH, INC. These partnerships reflect a preference for firms with proven experience in heavy civil construction, hydraulic engineering, and environmental remediation. The contracting approach emphasizes performance-based outcomes, technical rigor, and compliance with federal construction standards, fostering long-term vendor collaboration grounded in reliability and regulatory adherence. A strong commitment to small business participation defines Liebzeit’s socioeconomic contracting strategy, with 63.9% of awards designated for total small business set-asides under FAR 19.5. While the majority of opportunities are open to small businesses broadly, targeted support extends to HUBZone, Women-Owned, and Service-Disabled Veteran-Owned Small Businesses, albeit at lower volumes. This pattern underscores a deliberate effort to broaden vendor diversity while maintaining technical quality and project continuity across mission-critical infrastructure programs. The procurement focus centers on NAICS 237990 (Other Heavy and Civil Engineering Construction), accounting for over 40% of activity, followed by roofing (238160) and highway/bridge construction (237310). Liebzeit routinely procures services involving dam and levee rehabilitation, flood control systems, structural metal fabrication, and professional engineering consulting, demonstrating deep expertise in federally funded civil works and infrastructure modernization.