Engineering Simulation and Scientific Software (ESSS) is a leading Brazilian multinational specializing in Computer-Aided Engineering (CAE) solutions. The company offers state-of-the-art tools for fluid dynamics, structural analysis, electromagnetics, sensors, optimization, MBSE, semiconductor development, acoustics, optics, and multiphysics analysis, as well as customized software tailored to each client's specific needs.

As an Ansys APEX partner and the exclusive distributor of Ansys technologies in Brazil, ESSS plays a key role in cutting-edge projects, helping companies develop more efficient and groundbreaking products. With a client base of over a thousand organizations across multiple industries—including aerospace and defense—ESSS stands out for its strong support for innovation and professional development.

Its software solutions are widely used in the design, testing, and certification of launch vehicles, satellites, avionics, orbital calculations, and communications systems, establishing ESSS as a trusted reference in the field.