Samantha Cahill

Samantha Cahill serves as the primary contracting lead for the DSC Contracting Services Division within the National Park Service, overseeing the acquisition of critical infrastructure and environmental services essential to preserving America’s national parks. She manages a diverse portfolio of contracts focused on the rehabilitation of historic structures, modernization of utility systems, and enhancement of visitor facilities across ecologically sensitive and remote landscapes. Her work ensures compliance with federal preservation standards while advancing resilience and sustainability goals. Cahill handles complex, multi-disciplinary procurements requiring technical expertise in environmental engineering, architectural restoration, and civil construction, often coordinating with interdisciplinary project teams to align contracting strategies with long-term park management plans. Cahill maintains longstanding relationships with leading firms including AECOM Technical Services, Vanasse Hangen Brustlin, Johnson, Mirmiran & Thompson, HDR Engineering, and McKenzie Construction & Site Development. These partnerships reflect a preference for established, full-service providers capable of delivering integrated solutions across environmental consulting, civil engineering, and construction. Her procurement approach emphasizes performance-based contracting, rigorous technical evaluation, and sustained vendor collaboration to ensure high-quality outcomes on mission-critical infrastructure projects. Cahill’s contracting activity is entirely non-set-aside, with 100% of awards issued under full and open competition. While she does not prioritize socioeconomic set-asides such as 8(a), HUBZone, or SDVOSB programs, her portfolio consistently includes small and mid-sized firms through competitive bidding processes, ensuring market-wide participation without formal set-aside mechanisms. Her primary procurement focus lies in NAICS 541620 (Environmental Consulting Services), reflecting a strong emphasis on ecological assessments, environmental compliance, and sustainability planning. She also regularly procures services under NAICS 541310 (Architectural Services), 541330 (Engineering Services), and 237310 (Highway, Street, and Bridge Construction), demonstrating deep expertise in heritage preservation, civil infrastructure, and site-specific engineering solutions tailored to the unique challenges of national park environments.