Deuse

Deuse is a Liège software engineering company founded by twin brothers Julien and Maxime Deuse that builds custom web, mobile and business software, and ranked 49th in the Deloitte Technology Fast 50 2025 with 193% growth.

2015 Founded2 People on the graph8 News mentions

Overview

Deuse is a software engineering company headquartered in Liège that builds custom digital tools: mobile applications, web platforms, business management software such as ERP and CRM systems, digital transformation projects, artificial intelligence and data management solutions. The company was founded by twin brothers Maxime Deuse and Julien Deuse. Between 2010 and 2014 they ran a manga platform that reached up to 100,000 monthly readers, with Julien focused on software engineering and Maxime on management. In 2015-2016 they joined VentureLab, the incubator linked to the University of Liège, and Deuse was established following that incubation. The first employee, also an engineer, was hired in June 2017. The team grew to include engineers, web designers, project managers, sales people and administrative, marketing, communications and human resources staff, and the company has 11-50 employees. Deuse has offices in Liège (Avenue Maurice Destenay 1), Brussels (Boulevard Auguste Reyers 80) and Hasselt (Havermarkt 18); the Hasselt office opened in 2023 as the third location. Clients include Fluxys, Elia, Bridgestone, Proximus, Pairi Daiza, Radio Contact, CHC MontLégia, RTL, STIB, TotalEnergies, Université de Liège, Parlement de Wallonie, Magotteaux, Stassen Electricité, Mozer Technologies and Wallonie Expo. Deuse ranked 49th in the Deloitte Technology Fast 50 Belgium 2025 with 193% revenue growth.

Stated facts & numbers

  • Founded: 2015
  • Founders: Maxime Deuse, Julien Deuse
  • Headquarters: Liège
  • Offices: Liège, Brussels, Hasselt
  • Employees: 11-50
  • Legal name: Deuse SPRL
  • Incubator: VentureLab (University of Liège), 2015-2016
  • Customers: Fluxys, Elia, Bridgestone, Proximus, Pairi Daiza, STIB, TotalEnergies, Université de Liège
  • Deloitte Fast 50 2025: 49th, 193% growth

Key people

In the news

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