A team with more than 80 man years of experience 4D

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Over 25 types of charts

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Tools to improve your software and productivity

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  Encryption of ESXI servers, blue [company]  has the solution !  

On Friday February 3rd, a large number of ESXI virtualization systems users,

were targeted by a massive wave of ransomware cyberattacks.

blue [company], which itself was badly hit, successfully recovered data from its EXSI servers!

Our developpers have the skills to recover your data urgently.

To contact us : Mail : 

Tél :

The blue [company] team consists of 4D experts involved in the following areas: code analysis with delivery of an audit report, project organization and team management, custom development, technical expertise in contentious situations...


Accès à la galerie de Graphes

blue [company] has also developed components for 4D: graphs in SVG, SVG agenda, Data browser and code analysis enriching themselves from year to year and evolving as needed.


Accès à la galerie Agenda


Base redesign

This software required a full recovery of its web part that has then allowed to develop it

(Project duration: 3 years)

Accueil  We were selected for this project following a tender.

This site was composed of two parts :

# Administrations heavy clients via a TSE farm (+/- 50 users) 
# Web Applications (hundreds of identified users).

Our mission included the following items :

# Servers hosting ;
# System maintenance system (Windows, mail server, TSE Farm);
# 4D Maintenance ;
# Corrections and development of the website ;
# File update from INSEE data (dedicated update server).


This website contained many imperfections and unprofessional programming, the maintenance work was very important.

So we were asked to redesign much of the code while maintaining upward compatibility of data. The access security has been completely revised.

For this project we used the following technologies :

# JavaScript 
# And of course 4D

Sélection fournisseurs

In brief, hundreds of daily connections, hundreds of users, thousands of pages served, more than 2 million records in certain tables, hundreds of methods for the web part of the application,…

Mission realized by Paul, Simil and Arnaud   
  • logo hypermed

    « The passion and the expertise of Paul gave a boost to my development »

    Joël Brouzet

  • kreo cut (1)

    « Paul Kuhn was able to identify the different areas of our business and how they would translate »

    Estelle Bzowski

  • pg16 paniniLogoCopy

    « The project directed by Paul is amazing and brings the graphic design at a very high level »

    Leonardo Grillie

  • upside

    « Blue Company has allowed us to have a completely redesigned graphical planning, to the delight of our customers »

    Frédéric Blanc

  • logo market audit

    « Reliability and responsiveness. We found with them what makes the strength of our company »

    Peter Van Vliet

  • upside

    « Blue Company has upgraded his component over our demands »

    Frédéric Blanc

  • deville

    « A powerful component which I will summarize in three words: Rapidity, Fluidity and Efficiency »

    Samuel Guede

Paul Kühn will conduct a workshop during Europe Summit 2013

Blue Company has served 4D developers in developing a new graphs component.

This component will replace some 4D Chart graphs by its equivalent in SVG format. Indeed, 4D Chart is not included anymore from 4D 14.

4D summit Europe and US 2013 Gold Sponsor

Blue Company sponsors 4D US Summit in Las Vegas and 4D Europe Summit in Paris.


1, place Bossuet
21000 DIJON
Phone : + 33 (0) 6 31 73 06 57