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Hanlon Engineering is a subsidiary of GR Engineering Services Limited, specializing in process engineering consulting and contracting for the global mining and mineral processing industries. With offices in Tucson, Arizona and Elko, Nevada, Hanlon Engineering offers a wide range of services including civil and structural engineering, mechanical and electrical instrumentation, project management, and procurement services.Generated from the website

Terracon, based in Tucson, AZ, is a leading provider of environmental, geotechnical, and materials consulting services for a wide range of industries. With a focus on delivering practical solutions that make good business sense, Terracon's team of experts helps clients navigate the complexities of their projects from start to finish. From site selection to construction management, Terracon's diverse services are designed to meet the unique needs of each project, ensuring timely delivery, accurate results, and value-driven service. With a commitment to safety and sustainability, Terracon is dedicated to turning big ideas into reality for their partner clients, employees, and the communities they serve. Generated from the website

Tetra Tech is a publicly traded company that offers resource management and infrastructure services. It is one of the leading providers of consulting, engineering and technical solutions in the world. The company also offers, research, construction and information technology services. Tetra Tech provides environmental remediation solutions. It undertakes projects for the energy, government and communications sectors. The company additionally offers disaster management, emergency response and staff augmentation services. Tetra Tech manages a staff of more than 9,500 employees. It provides nuclear engineering and wetland restoration solutions. The company s regulatory consultation services include material content reporting, supply chain management and program implementation. Tetra Tech s clients include the City of Chicago and Absher Construction Company.