Aegion Corp. engages in the provision of infrastructure protection, maintenance, and rehabilitation. It operates through the following segments: Infrastructure Solutions, Corrosion Protection and Energy Services. The Infrastructure Solutions segment focuses on the municipal water and wastewater pipeline sector. The Corrosion Protection segment captures the benefits of continued oil and natural gas pipeline infrastructure developments. It also protects, maintain, rehabilitate, assess, and monitor pipelines from the effects of corrosion. The Energy Services segment gives value proposition based safety and labor productivity programs, which allow cost-effective construction, maintenance, turnaround, and specialty services. The company was founded in 1971 and is headquartered in Chesterfield, MO.