SI Solutions is a leading provider of highly technical engineering, testing, inspection, and maintenance solutions for utility and critical infrastructure end markets. The company has six market-focused business units, including Nuclear, Power Services, Critical Infrastructure, Utility Gas, Process Industries, and Advanced Manufacturing. SI Solutions was formed in 2022 with the combination of Structural Integrity Associates, a leading specialty engineering consultant in the power and utility industry, and C2C Technical Services, a leading electrical engineering and electrical field service company. In 2024, SI Solutions acquired SC Solutions, a leader in critical infrastructure engineering and advanced manufacturing controls. SI Solutions serves diverse clients including electric and gas utilities, advanced nuclear reactor and independent power producers, federal, state and municipal agencies, process industries, and the semiconductor value chain.