Operational for more than 45 years, GAI Consultants is an engineering and environmental consulting firm. It employs a staff of more than 550 people that includes construction engineers, administrators and inspectors. GAI Consultants offers construction engineering and inspection, monitoring, material testing and evaluation services. It undertakes projects for natural gas pipelines, storage facilities, compressor stations, roadways, power and nuclear plants and electric transmission lines. GAI Consultants serves the power generation, natural gas and electric transmission and government agencies. It provides permitting, site development, environmental assessment and compliance, environmental, geotechnical and structural engineering and construction management services. GAI Consultants serves various industrial clients, including oil refineries and pharmaceutical production companies, as well as the petrochemical and automotive industries.