GDK Software, Mendix and Delphi development

Expand your

Do you have a Delphi or Mendix challenge and are you looking for expertise or capacity? Our experts and developers are ready to realise your ambitions and goals. We gladly help you with new development, upgrade and maintenance of your Delphi or Mendix application.

How can we help you?

Mendix and Delphi specialists with passion!

We understand your business and make digital goals achievable. Small, practical steps deliver big, tangible results. Expand your horizon.

Delphi development

Work with our Delphi experts.

Mendix development

Work with our Mendix experts.

Delphi upgrades

Upgrade your legacy Delphi application to the latest version.

Mendix app ontwikkeling

Develop in an instant a modern platform.

Working together

Whatever your ambition, we go for the best solution for your organisation. We get to know your business and build applications aimed at the user.

Success stories

New app for Animal Ambulance Gooi and Vechtstreek

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Groundbreaking Delphi software for administrators' offices

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All-in-one portal for Horeca Stichting Nederland

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Budget tool for school headteachers taken to the next level with Mendix

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Working at GDK

Expand your horizon

At GDK you work in an enthusiastic team with experienced developers and young students. Immerse yourself in the latest techniques, learn from your clients and follow a wide range of training courses. At GDK, in addition to software, you will also develop yourself.


Remco Vorthoren

I attach great importance to significant challenges

Remco's story
Reinier Stam

No hierarchy: there is always room for your own idea

Reinier's story


Company day UK 2023

24 May 2023

Marco Geuze

Our international branches

19 April 2023

Kees de Kraker


Let us help you to realise your ambitions