ICM: Integrated Engineering. Controlled Construction.
Ingénierie & Construction Masset, better known as ICM, is a leading player in industrial construction and precast concrete manufacturing in Wallonia.
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Founded in 1986 and integrated into the Wanty Group in 2015, ICM now combines technical expertise, high-level engineering, and a family-oriented approach.
ICM designs and constructs buildings from start to finish: industrial and office buildings, logistics warehouses, commercial properties, car dealerships, car parks, stands, and stadiums.
Our specialisation? Custom precast concrete, with complete mastery of the process:
- design with the architect
- stability studies
- prefabrication in our workshops
- on-site assembly
120
employees
Based in Mettet
in the heart of Wallonia
Nearly 1,000
buildings completed
Projects that are
visible, technical, and ambitious
Our office
ZI Rue Saint-Donat 18, 5640 Mettet
Our roles
Building, designing, manufacturing, assembling. ICM offers a wide variety of roles within the construction sector:
Civil and industrial engineers
Draughtsmen and design office staff
Site managers and project managers
Precast concrete and metal prefabrication workers
Assemblers and site teams
Support profiles related to projects and production
Key moments that bring people together
Ambitious projects. Shared pride.
ICM fully embraces the key events of the Wanty Group, while also maintaining its own team-building moments.
Excellence Day (Saint Barbara's Day)
A key event combining:
- training sessions (safety, new technologies, construction innovation)
- discussions on the group's vision and projects
- honouring of long-serving employees and retirees
Safety Day
Training sessions, conferences, discussions, visits to iconic construction sites (RAAL La Louvière, Chertal…), discovery of the roles in other group subsidiaries. A moment to learn, understand, and strengthen collective pride.
Why work at ICM?
Because building isn't just about stacking square metres.
Choosing ICM, means choosing a company where:
- engineering remains connected to on-site reality
- technical decisions have a direct and visible impact
- quality, deadlines, and safety are non-negotiable
At ICM, you work on concrete, meaningful, and often iconic projects, such as the RAAL La Louvière stadium.
It also means joining:
- a locally rooted company
- integrated into a strong group that prioritises in-house expertise over excessive subcontracting
- a growing company
ICM, Trends Gazelle award winner
In 2023 and 2024, ICM was awarded the Trends Gazelles prize for two consecutive years in the Large Enterprises category for Namur province. Trends Gazelles recognises companies with the strongest growth. And because we know how to celebrate our victories, we gathered for a drink to toast this recognition. In 2026, we are nominated again – fingers crossed for a third win!
An engineering culture… profoundly human
Technology, yes. People, always.
At ICM, the company culture mirrors its history:
family-oriented, demanding, and authentic.
Founded by Pierre Masset and later acquired by the Wanty Group, the company has retained:
- a very local spirit
- genuine closeness between teams
- a pride in a job well done
Here, we know each other. We exchange ideas. We move forward together.
The ICM culture involves:
- high technical standards
- a strong culture of quality and safety
Growing with ICM
Real career paths, at the heart of projects.
At ICM, career progression isn't about fancy titles, but about:
- the diversity of projects
- versatility in roles
- gradual skill development
An ICM engineer is not an 'armchair engineer'. They follow their project from start to finish:
- understanding client needs
- studies and calculations
- coordination with production
- monitoring on-site assembly
For workers and production teams, ICM offers:
- technical and rewarding roles
- learning and development opportunities
- genuine recognition of on-site expertise
Join us!
Safety and quality, without compromise
Sustainable construction begins with strong protection.
At ICM, safety is an integral part of our culture. Training, awareness campaigns, dedicated days, clear procedures: everyone is responsible for their own safety and that of others.
Quality is also a cornerstone. Workshop production, process mastery, anticipating constraints: everything is designed to deliver reliable, durable, and high-performance structures.
