TETRA TECH/MASON & HANGER JOINT VENTURE

TETRA TECH/MASON & HANGER JOINT VENTURE delivers specialized engineering and architectural services to federal agencies, with deep expertise in mission-critical infrastructure design and environmental systems. The joint venture focuses on advanced engineering solutions for defense installations, including microgrid development, stormwater assessment, and explosive facility design, alongside architectural services for secure ranges and tactical facilities. Their technical capabilities encompass civil, structural, and environmental engineering, with a strong emphasis on compliance with military and DOJ facility standards, design documentation for high-hazard facilities, and integration of sustainability and resilience principles into infrastructure projects. The team excels in translating complex regulatory requirements into actionable design solutions, particularly for sites requiring rigorous safety, security, and environmental controls. The contractor maintains a consistent presence with the Department of Defense, supporting installations through engineering services for energy resilience, ammunition handling facilities, and base infrastructure upgrades. For the Department of Justice, they provide architectural design and range-specific expert services tailored to federal law enforcement training environments, demonstrating an understanding of specialized ballistic, safety, and operational constraints. These relationships reflect a pattern of trusted, recurring engagement on technically demanding, mission-sensitive projects. The primary NAICS codes—541330 for engineering services and 541310 for architectural services—indicate a focus on federal infrastructure lifecycle support, from conceptual design through construction documentation. The joint venture specializes in high-security, high-consequence environments, positioning itself as a technical partner for agencies requiring precision-engineered solutions under strict compliance regimes. As a joint venture structured under ZZ entity classification, the firm operates without formal government certifications but leverages the combined technical pedigree of its parent entities. Based in Ann Arbor, Michigan, it maintains a focused federal market presence, serving defense and justice clients through geographically distributed project teams with deep domain knowledge in federal facility standards and regulatory frameworks.