NLyse Consultants

Nonlinear analyses for the built environment

Maximize efficiency, optimise cost or risk

Our team of experts utilizes the latest nonlinear Finite Element Analyses (FEA) software to deliver fit for purpose solutions, saving you time and money.

Structural engineering

Design and assessment of new and existing structures such as warehouses, buildings, and bridges under static and dynamic loading conditions.

Geotechnical engineering

Design and analysis of earthworks, foundations and building pits. Specialised on the interaction between soil, water and structure (soil-structure interaction).

Specialised in nonlinear materials

Reinforced concrete, SFRC, early-age (Femasse), UHPC, FRP, masonry, advanced soil models, soil-structure interaction, and many others.

“NLyse helped us a lot with the assessment of existing foundation constructions with their non-linear analyses. In order not to make a new construction from the point of view of sustainability.”

– Bogdan Cotovanu, Civil Lead Engineer – TA2 Civil Structural Shell

About NLyse

Welcome to NLyse Consultants, a leading engineering consultancy specialized in nonlinear finite element method (FEA) analyses.

Our team of experienced engineers leverages the latest software and techniques to deliver accurate and efficient solutions for clients in a wide range of industries.

From structural design and geotechnical analysis to transportation and environmental engineering, we are committed to providing our clients with the highest quality services and innovative solutions. We use physical more realistic modeling compared to conventional linear analyses. That’s NLyse.

Immersed tunnel

to combine, share user knowledge of DIANA


Some of the projects we have worked on.

Steel Fibre Reinforced Concrete (SFRC) beam

Courtesy of


Balqoon® Iso-Qonnect®

thermal bridge anchoring for retrofitting balconies and gallery plates

Immersed tunnel


What our customers say about us.

Karel Vrolijk, CEO / owner Vrolijk Groep

Vrolijk has a long-standing trusted collaboration with NLyse of which I am genuinely proud. By working together and constantly developing, we find the best concrete designs and solutions time and time again. We can therefore guarantee quality to our customers.

Coen van der Vliet, structural specialist at Arcadis

I look back on the pleasant cooperation with Ab’s team at DIANA FEA Consultancy (now NLyse) on a complex bridge assessment recalculation. When a personnel change in the middle of a complex recalculation caused a capacity problem, we asked Ab to help. Not only did his team seamlessly adopt the model-in-development – in subsequent steps in the project, they brought in in-depth knowledge about the software to unlock additional possibilities.

Boudewijn Hektor, Manager Schipper

The NLyse company did give assistance, unnoticed for our clients, for the loss of an employee of ours and kept all calculations running. In the meantime, they have arranged the drawing work to be taken up in a professional way for the long term on top of that.