Fluidyn / Transoft group of firms offer modelling software and consultancy services in Computational Fluid Dynamics and related areas such as stress analysis, heat transfer, acoustics, magneto-hydrodynamics, electro-chemistry or rarefied gas dynamics for optimizing industrial processes. One major modelling area is environmental impact and industrial hazards simulation.

TRANSOFT INTERNATIONAL was founded in 1987 in Paris, France by engineers coming from the nuclear and the defence sectors, with the aim of offering expert modelling services in the domains of fluid and structural dynamics. The FLUIDYN series of numerical tools was designed to respond to the numerous challenges in the field of fluid mechanics and the necessity to use tools and methods adapted to the various applications.

The first subsidiary TRANSOFT India, was opened in Bangalore, India in 1990.