TECOSIM GmbH

TECOSIM GmbH is an engineering services company specialising in computer-aided engineering (CAE), numerical simulation and digital engineering. Founded in 1992 in Rüsselsheim, Germany, by engineers seeking to change how products are developed, the firm works on virtual product development: using simulation-driven methods to shorten development cycles, reduce costs and improve product quality. Its technical work spans numerical calculation and simulation, computer-aided design (CAD), digital twin technologies and automotive engineering.

The company's services include CAE and numerical simulation, engineering development built on CAD, CAE and digital engineering capabilities, and digital twin solutions. Clients come from the automotive, aerospace, energy, healthcare and industrial technologies sectors. The firm describes its mission as "Engineering Better Living", with an emphasis on solutions addressing practical, real-world problems.

TECOSIM employs approximately 650 people across 15 locations worldwide, with a presence in Germany, India, Japan, Romania, the United Kingdom and the United States. What began as a regional engineering services provider has grown over more than three decades into a global enterprise. In late 2024 the company became part of Hinduja Tech through a strategic acquisition.