Aegion Corporation engages in the research and development, manufacture, maintenance, construction, installation, coating and insulation, cathodic protection, distribution, and licensing of proprietary technologies and services for the protection and maintenance of infrastructure worldwide. The company operates through three segments: Infrastructure Solutions, Corrosion Protection, and Energy Services. It provides technologies and services to protect against the corrosion of industrial pipelines; rehabilitate and strengthen water, wastewater, energy and mining piping systems and buildings, bridges, tunnels, and other commercial and industrial structures; and utilize integrated professional services in engineering, procurement, construction, maintenance, and turnaround services for various energy related industries. The companys solutions include rehabilitation of water and wastewater pipelines; fusible polyvinyl chloride products for rehabilitation; fiber reinforced polymer systems for rehabilitation and strengthening; cathodic protection for corrosion engineering control and infrastructure rehabilitation; pipe coatings for corrosion control and prevention; high-density polyethylene pipe lining for corrosion control, abrasion protection, and pipeline rehabilitation; and construction and maintenance of oil and gas facilities. It serves municipal, state, and federal governments, as well as corporate customers in various industries, including energy, oil and gas, mining, general and industrial construction, infrastructure, water and wastewater, pipelines, transportation, maritime, and defense. The company was founded in 1980 and is headquartered in St. Louis, Missouri.