ESI Group is an international software development company; it holds a research and development office in Del Mar. It performs engineering of software for numerical simulation and prototyping for biomechanics, castings, plastics, electromagnetics, fluid dynamics, welding virtual reality solutions, vibro-acoustics and sheet metal forming, among others. It serves aeronautic, automotive, education, civil engineering, marine, heavy industry, healthcare, government, energy, power, ground transportation and electronic industries.