A story of passion,
expertise, and transmission
Modelage Magnin is the story of a small modeling workshop that became a key player in thermoforming.
It all began in 1985 in the heart of Isère, when Lionel Magnin transformed an old weaving workshop into a place of industrial know-how. His mission: to provide local foundries with tailor-made technical tooling adapted to their specific constraints.
From the start, the approach was clear — being close to client needs, with precision, agility, and excellence.
Soon after, the company faced changes in the metallurgy sector. Rather than suffer, it chose to reinvent itself. In 1988, Modelage Magnin made a bold strategic shift toward plastics processing — a fast-growing field — and became a trusted technical partner in the design and manufacture of thermoforming tooling. This decisive move anchored the company in specialization, technical mastery, and customer focus.
Modelage Magnin is also a story of human and family transmission. Michel Magnin, Lionel’s son, joined the workshop at a young age and learned every trade. As a key pillar of the company, he ensured continuity of expertise and took over management in 2020. Under his leadership, the company strengthened its structure and methods, opening a new chapter in its development.
A decisive encounter followed — between Michel and Sébastien Blanchet, an engineer by training, former operational excellence consultant, and experienced business leader. A meeting that felt like a natural fit: Sébastien was inspired by the humility and collective know-how of the team. In May 2025, Sébastien Blanchet became CEO of Modelage Magnin, determined to continue developing this remarkable company alongside Michel, who now focuses on Technical Management. His vision naturally extends the company’s legacy: growing Modelage Magnin while preserving its identity, local roots, and industrial excellence.
Today, Modelage Magnin combines human passion and technical mastery to deliver tailor-made thermoforming solutions — globally designed, locally manufactured.
1985
The birth of the workshop
Creation of Modelage Magnin by Lionel Magnin, offering model-making solutions for foundries.
1988
Strategic pivot
Shift toward the plastics industry. The company refocuses on the design and manufacturing of thermoforming tools.
2008
A new industrial site
Construction of a 1,900 m² production facility to match the company’s growing ambitions.
2011
Launch of thermoforming
Investment in the first thermoforming line and start of in-house production.
2020
Transmission
Michel Magnin takes over the company’s management from Lionel Magnin.
2025
A shared new leadership
Sébastien Blanchet acquires the company, allowing Michel Magnin to focus on Technical Management. This marks the evolution of the company’s brand identity — reflecting a new energy and ambition.
Our Promise
To deliver the most suitable packaging solutions — from design to production.
Ingenious by Nature
Our ingenuity is not only born of intuition or experience — it is rooted in a constant technical curiosity, a genuine passion for learning, and the drive to dig deep into every challenge.
What motivates us: providing the best-designed and most thoughtful solution for our clients and their end users.
Committed by Conviction
We put all our energy into supporting our clients and ensuring their satisfaction.
We share a true culture of craftsmanship, built on rigor, reliability, and respect for commitments.
Quality is both a duty toward our clients and a source of pride for every member of our team.
Honest by Principle
Our ethical sense is part of our DNA and guides every decision we make.
For us, honesty is not a posture — it is a way of working.
It drives us to be fair, transparent, and straightforward, even in difficult decisions.
That is what gives meaning to our work and weight to our word.