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This organization is a Drupal services provider.

Our Company

ONE Agency is a technical web agency with offices in Leuven, Brussels and Ghent. We are specialized in web and application development, web design, mobile development and e-commerce. We also offer several supporting services such as strategic consultancy, webdesign, e-mailmarketing, mobile, training etc. Our team consists of more than 130 highly motivated and qualified experts that have earned their stripes on projects both for the public and private sector. Our specialists have the knowledge of the latest technologies on all platforms: PHP, Java, and .Net and have a taste for Open Source, especially Drupal. Our developers are supported by experts in the domains of design, usability, security and scaling. The ONE Agency team actively participates in the Drupal community. These contributions and expertise are later on translated into an added business value to our customers.

Our sister company Dataflow with headquarters in Leuven employs more than 550 consultants in both development- (Drupal, Java, .Net, PHP, etc.) and infrastructure-related projects (Windows, network & security, etc.). DataFlow provides a wide range of IT services tailored to the customer’s needs: from staffing solutions to project solutions, from operational to strategic solutions. We guarantee unique people and unique solutions.

ONE Agency and DataFlow are part of AUSY Belgium which in turn belongs to the French AUSY Group. The AUSY Group with headquarters in Paris employs more than 4500 people in 10 countries and is listed on the EURONEXT Paris market.

Our commitment to Drupal

ONE Agency has the biggest leading Drupal team in the BeLux and we are a strong advocate of this open source web content management system. Our team actively contributes to the Drupal community by organizing events, participating in conferences (loyal sponsor of DrupalCon) and evangelizing Drupal.
With our Drupal expertise and well-known training programs, we actively promote Drupal on a large scale. The best example of this is ONE Agency’s leading role in the NovaComm consortium, which was set up to streamline all digital communication of the European Commission. Through a 4-year framework contract, NovaComm is transferring big parts of the Commission’s online presence to Drupal.

Our Case Studies

Website NN Group
Multisite platform Doctors Without Borders
Multisite platform Pioneer car entertainment

Our Clients

ONE Agency has several years of experience in offering web solutions and software applications. We have already built up a number of first-class references including the European Commission, the Government of Flanders, NN Group, Mobistar, Doctors without borders,... and many more!

Feel free to browse and explore the case studies that reflect our success and that of our clients!

Our contact details

ONE Agency
Interleuvenlaan 17
3001 Leuven

Telephone: +32 16 38 70 90

Drupal contributions


  • Drupal Association Member
  • DrupalCon Munich 2012
  • DrupalCon Prague 2013
  • DrupalCamp, Drupaleuven, Drupal Global Sprint Weekend and Drupal Global Training Days 2014
  • DrupalCon Amsterdam 2014
  • DrupalCon Barcelona 2015
  • DrupalCamp Leuven (Belgium) and Drupal Global Training Days 2015

Projects supported

Paddle web service, Commerce line item specific checkout, Paddle Poll, Vlaanderen, Ocelot, Paddle comment, Paddle Incoming RSS, Checkbox auto create, LISSA Kickstart, Panda, Graceful Menu Cache, Paddle

Credited on 5 issues fixed in the past 3 months


ONE Agency wants to maintain its key position as the Acquia Enterprise Solution Provider in Belgium and neighbouring countries. With our Drupal expertise and well-known training we step to the market to promote Drupal for major platforms and to endorse open source technologies in general.