SONAMIA & MONROC: 55 Years of Partnership Supporting Manufacturers
For more than half a century, SONAMIA and MONROC have been moving forward together with a shared ambition: to provide manufacturers with reliable, high-performance solutions tailored to the realities of the field.
In 2026, MONROC celebrates its 55th anniversary. A symbolic milestone that also marks 55 years of collaboration between our two companies. A unique relationship built on trust, expertise and a shared vision of the industry.
A shared history that began in 1971
MONROC’s story officially began in 1971, when SONAMIA and Eugène Gateau, founder of Rochland, joined forces to create a company dedicated to axle manufacturing. The name MONROC itself comes from the combination of the names Monvoisin and Rochland.
From the very beginning, SONAMIA became MONROC’s commercial agent and supported the development of its solutions among French and international manufacturers.
Fifty-five years later, this partnership remains as strong as ever.
Recognised expertise in axles and running gear systems
Based in Saint-Étienne-du-Bois, in the Vendée region of France, MONROC is now recognised for its expertise in the design and manufacture of axles, suspensions and running gear solutions. The company serves the agricultural, industrial, forestry, material handling and airport sectors, both in France and internationally.
For more than five decades, SONAMIA has been responsible for the commercial development of MONROC products, supporting manufacturers through its close connection to the field and its understanding of end-user needs.
A partnership built on proximity and innovation
Beyond the commercial relationship, the partnership between SONAMIA and MONROC is based on close day-to-day collaboration.
The teams work together to deliver solutions that meet manufacturers’ requirements and adapt to changing market needs. This combination of industrial expertise and field knowledge enables the development of increasingly efficient products and ensures that professionals receive solutions tailored to their expectations.
Innovation, quality, team spirit and customer satisfaction are values shared by both companies and continue to drive this partnership forward.
55 years of history… and the future ahead
Since 1971, MONROC has continuously evolved through the development of new technologies, the modernisation of its production facilities, international expansion and market diversification.
For SONAMIA, being MONROC’s commercial agent for 55 years represents far more than a historic collaboration. It is proof that a long-term relationship built on trust and shared values can stand the test of time while continuing to reinvent itself.
On the occasion of this anniversary, we are proud to celebrate these 55 years of shared history and to continue building tomorrow’s solutions together.