ESI Group SA, together with its subsidiaries, designs, develops, and distributes virtual prototyping software solutions in Europe, the Middle East, Africa, the Asia Pacific, and the Americas. The company offers vibro-acoustics, which allows engineers to perform accurate predictive noise and vibration design assessments early in the design cycle; virtual performance solutions; and virtual seat solutions. It also provides SimulationX, a single platform for modeling, simulating, and analyzing technical systems; SYSWELD, which enables the designers and process planners to virtually manufacture, assemble, and test physically realistic virtual assemblies; SYSTUS, which offers a complete resolution to analysis challenges in mechanics, heat transfer, and electrotechnics; PAM-STAMP that provides sheet metal forming solutions; interior solutions; PAM-COMPOSITES; IC.IDO, a virtual reality engineering software; and ProCAST, which offers casting solutions, such as die casting, sand casting, and investment casting. In addition, the company offers consulting, technical support and assistance, and training services. It serves aerospace, defense, naval, automotive and land transport, energy, ground transportation, heavy machinery industries. The company was founded in 1973 and is headquartered in Rungis, France. As of November 3, 2023, ESI Group SA operates as subsidiary of Keysight Technologies, Inc.