Dumarey Group and Renault Group announced on 22 October 2026 that they have signed an agreement under which Dumarey is expected to acquire Alpine Racing SAS, the Renault Group entity based in Viry-Châtillon in the Île-de-France region. The financial terms were not disclosed, and completion depends on a legally required employee consultation and regulatory approvals, according to the companies’ joint release published by Renault Group.
What the companies announced
According to the release, issued from Nazareth-De Pinte in Belgium and Boulogne-Billancourt in France, the agreement covers Alpine Racing SAS together with the teams and the tangible and intangible assets required to operate the site. All employees of the entity would be transferred to the acquirer, the companies said. The release did not state a headcount.
The companies said that after completion Alpine Racing SAS is expected to operate under the Dumarey Group brand, ownership and management. They said the transaction would provide the best conditions for the long-term sustainability of the entity’s activities and expertise while preserving employment, and would create opportunities to use its Formula 1 engine expertise for racing teams in the future.
The release describes the deal as a process rather than a completed sale. The proposed transaction was presented on 22 October to employee representatives of Alpine Racing SAS at an extraordinary Works Council meeting, the companies said. A consultation process has been launched, and its outcome will be presented at a future Works Council meeting. The acquisition is expected to be completed after that consultation ends and once all applicable regulatory approvals have been obtained. Renault Group said it will support the transition “responsibly and in full respect of social dialogue”, according to the release.
Which Alpine business is involved
A footnote in the release says Alpine Racing SAS is the legal entity that operates all motorsport activities based in Viry-Châtillon. It is a separate entity from Alpine Racing Limited, based in Enstone in the United Kingdom, which encompasses the Formula 1 activities of the BWT Alpine Formula One Team, according to the release. The announced agreement concerns the French entity only.
The release says motorsport has always been at the heart of the activities of Alpine Tech’s Viry-Châtillon site. It describes the site as a centre of excellence with more than four decades of Formula 1 development experience, and recognised expertise in hybrid and electric propulsion systems, simulation, software and testing.
Comments from both sides
Guido Dumarey, Chairman and Founder of Dumarey Group, said: “The Viry-Châtillon site has built a strong reputation for advanced engineering and innovation. We see considerable potential in combining its highly skilled teams and technical capabilities with Dumarey’s entrepreneurial culture and diversified industrial footprint. Our ambition is to preserve and further develop this exceptional engineering expertise while creating new opportunities for growth.”
Axel Plasse, VP Alpine Tech, said: “This transaction represents a strong and coherent opportunity to secure and further develop the expertise of the Viry-Châtillon site. It opens up new prospects for employees and for the engineering business. This development is a recognition of the site’s longstanding motorsport expertise, particularly in Formula 1.”
Dumarey’s plans
According to the release, Dumarey Group specialises in powertrain technologies, developing engines, energy storage systems and engineering solutions for the automotive industry, and intends to diversify by expanding into motorsport. The company said it intends to strengthen its engineering capabilities by adding expertise in high-performance powertrain development, electrification and advanced testing technologies, which it described as a strategic fit with its ambition to accelerate innovation across the automotive, aerospace and industrial sectors.
Dumarey describes itself as a family-owned international business founded in 1983 by Guido Dumarey. It said it operates across eleven locations in Europe, the Americas and Asia, with a team of 2,500 and annual revenue of around €750 million.
Renault Group said it sold 2.337 million vehicles in 2025 under its Renault, Dacia and Alpine brands, employs more than 100,000 people and is established in more than 100 countries.
Background to the Viry-Châtillon site
The sale follows Renault’s 2024 decision to end its Formula 1 engine programme. Autosport reported at the time that Renault would end its works engine effort and that the Viry-Châtillon factory would be transformed into an engineering centre. Renault said in a statement quoted by Autosport that “Formula 1 activities at Viry, excluding the development of a new engine, will continue until the end of the 2025 season”.
