Irwin Industries is one of the nation's leading industrial construction and maintenance service providers, serving the onshor ... e and offshore oil & gas, petrochemical, refining, power generation, utility-scale renewable, and other heavy industries from coast to coast. Irwin Industries has been providing high quality construction and maintenance services to the energy industry since 1922. Our expertise includes civil, concrete, mechanical, piping, structural, electrical/instrumentation installations as a general contractor and subcontractor. read more