Performance Engineering

Terracon is a 100% employee-owned engineering and consulting firm specializing in environmental, geotechnical, materials, and facilities engineering services. With over 180 locations across the United States, the company offers comprehensive support throughout the lifecycle of projects—from site selection and design to construction and asset management. Rooted in values of caring, excellence, and integrity, Terracon's team of engineers, scientists, and consultants utilize decades of data and expertise to minimize risks and unlock new opportunities for clients. Their innovative approach fosters a culture of curiosity and collaboration, ensuring that projects are completed efficiently and effectively. Generated from the website

HDR Engineering is an architectural, engineering and consulting firm that excels at managing complex projects and solving challenges for clients. The employee-owned firm, established in 1917, has blossomed into one of the nation's largest and most respected architecture-engineering companies, employing more than 4,400 professionals in over 100 locations worldwide. Over the years, HDR has completed more than 250 civic projects in 40 states and in 60 countries. These include more than 150 state and county detention and correctional facilities, representing more than 110,000 beds. HDR has also been associated with the planning, design or evaluation of 50 court projects, representing more than 11 million square feet of court and court-related spaces. HDR has been involved with several noteworthy community architecture projects, including the Holland Performing Arts Center, Joslyn Art Museum, Orpheum Theater and the Durham Western Heritage Museum, in Omaha, Neb. The company has an office in Billings, Mont.

With more than 15 offices throughout the United States, Tetra Tech NUS provides environmental consulting and engineering, remediation, construction and information technology services to government and commercial clients. It offers air quality, regulatory compliance, environmental analysis, planning, hazardous waste management, nuclear plant licensing and risk assessment solutions. The company also specializes in the water and wastewater treatment services. Tetra Tech NUS is a subsidiary of Tetra Tech, which is one of the world s leading companies that provides consulting, engineering and technical services. Founded in 1996, the parent company maintains a staff of over 10,000 employees. It offers solutions for waterways, harbors and coastal areas. Tetra Tech operates various subsidiaries, including Tetra Tech FC, Tetra Tech International and Tetra Tech International.