Dennis Grubb & Associates

AECOM is an international professional technical services company providing consulting, design, program and construction management and operations and maintenance support to the transportation, environmental and building industries. The company serves both government and private clients. AECOM also provides technical support, international development assistance, and mining and power services. AECOM is headquartered in Los Angeles and operates additional offices throughout the United States., Canada, Asia, the Middle East, Africa, Australia and Europe.

Foster Design Group Consulting Engineers Inc. is based in Irvine, California, and specializes in providing engineering consulting services. The firm is dedicated to delivering innovative solutions and expertise to address the diverse needs of its clients. With a focus on collaboration and quality, Foster Design Group prides itself on its experienced staff and successful project outcomes. Their commitment to excellence ensures that they remain a trusted partner in the engineering consulting industry. Generated from the website

Founded in 1989, FREY Environmental has been providing professional consulting, engineering and construction services for the environmental protection and conservation of natural resources. It provides environmental analysis and related permitting services, as well as conducts general analysis for concept-level reports and planning studies. FREY Environmental offers asbestos-related services, product removal, groundwater monitoring, methane assessment, subsurface investigation, and soil and groundwater remediation. It also undertakes removal, installation and retrofitting of underground storage tanks. The company has a staff of more than 30 individuals who specialize in geology, civil engineering, air quality analysis, hydrology, hydrogeology, industrial hygiene, solid waste management, environmental and land use planning and permit assistance. FREY Environmental operates offices in Newport Beach and Santa Cruz, Calif.