Parkhill Smith & Cooper Inc

Tetra Tech is a global company dedicated to improving the quality of life for people worldwide through science, technology, and innovation. They offer a wide range of solutions in areas such as water, environment, energy, high-performance buildings, international development, and climate services. With a focus on sustainability and community impact, Tetra Tech works on projects that aim to create more resilient and sustainable communities. Their commitment to using science and technology to address complex challenges has earned them recognition in the environmental and climate change industry. Generated from the website

Terracon in Oklahoma City is a leading provider of consulting engineering and scientific services, with expertise in environmental, facilities, geotechnical, and materials consulting. Their team of specialized engineers and scientists offer a range of services to meet the needs of various industries, ensuring high-quality solutions for their clients. Generated from their website's infomation

Benham, founded in 1909 and based in Oklahoma City, is a full-service design and build company, offering architecture, engineering, planning and environmental services. The company offers a wide range of services for various industries, including communication, aerospace and aviation, environmental, federal and defense, food and beverage, health care, manufacturing and science and technology. It provides a variety of water management services, such as dams and hydropower, environmental consulting, flood control, managing water resources, supply, storage, treatment and distribution and wastewater control. The company s federal and defense services include administration and operations, base support facilities, defense installation planning, defense laboratories, dormitories and barracks, family housing, command and control centers and military aircraft hangars. Benham also provides design and build services for the transportation industry, including air carriers, airfields, airport planning and terminals, maintenance, repair and overhaul, management and operations, highway program management and traffic engineering.