Aegion Corporation provides proprietary technologies and services for the rehabilitation and strengthening of sewer, water, energy, and mining piping systems, as well as buildings, bridges, tunnels, and waterfront structures; and the corrosion protection of industrial pipelines in North America and internationally. The company’s business activities include research and development, manufacturing, distribution, installation, coating and insulation, cathodic protection, and licensing. It offers Insituform CIPP Process for the rehabilitation of sewers, pipelines, and other conduits; iPlus Infusion Process for the rehabilitation of small-diameter sewer pipelines; iPlus Composite Process for the rehabilitation of large-diameter sewer pipelines; InsituMain System, a cured-in-place pipe solution for pressure pipes; InsituGuard, InsituFlex, and InsituFold Processes for rehabilitating transmission and distribution water mains; and Thermopipe Lining System, a polyester-reinforced polyethylene lining system for the rehabilitation of distribution water mains. The company also provides Sliplining, a method used to push or pull a new pipeline into an old one; and Sealing Method process, a method for providing re-connection to a ferrule of a service line. In addition, it offers processes and products for pipeline system rehabilitation and protection to energy and mining industry, such as Tite Liner process, Safetyliner Liner product, Fusion-Bonded Epoxy process, InnerGard product, Enventure product, Cathodic Protection Process, CorrFlex System, CorrSpray product, and Green Rectifier; and for infrastructure rehabilitation and strengthening to commercial and structural industries comprising Fibrwrap and TYFO processes, Blast Glass product, Nano-Nano product, FibrBundle process, and FibrBot product. The company was founded in 1980 and is headquartered in Chesterfield, Missouri.