DIANA FEA BV  (previously TNO DIANA BV) was established in 2003 as a spin-off company from the Computational Mechanics department of TNO Building and Construction Research Institute in Delft, The Netherlands. Building on over 30 years of research and experience, the company provides world-class software products and services in the field of finite element solutions dedicated to civil, geotechnical, earthquake, and petroleum engineering.

DIANA, our flagship software, is world renowned as the finest in its class as the “all in one” solution for Finite Element Analysis within the civil engineering community. Our team of highly skilled and experienced civil and geotechnical engineers, scientists, software developers and architects work to develop and deliver innovative software and value-added services including technical support, training, analysis consultancy and R&D projects.

Core Values

DIANA FEA Core Values


  • To continue to develop and distribute innovative software to satisfy the fast-growing and challenging need for reliable, realistic and user-friendly Finite Element analysis and design software. 
  • To provide added-value services to our clients to enable them to get the most out of our software.