Crest Industries LLC is a manufacturing company that provides a range of products and services to the energy, petrochemical, and industrial markets. The company was founded in 1958 and is headquartered in DeRidder, Louisiana. Crest Industries LLC's products include electrical and instrumentation equipment, transformers, and custom metal fabrication. The company also provides a range of services, including electrical and instrumentation installation, maintenance, and repair. Crest Industries LLC has over 1,000 employees and operates in multiple locations throughout the United States.