Our customers

Our consultants’ references include some of the biggest names in the industry:

Customer testimonials:

Iann Le Bris


Quality Director of Underwater Systems

Vianney Lagrange and Marc Péran, together with their consultants, actively contributed to the launch of a new production unit. Well integrated and accepted they brought know-how and methodology to accelerate the implementation of new modes of operation in break with established habits. After their departure the dynamic was maintained and this production unit achieves remarkable results (testimonial translated from French).

Laurent Combier


PMO and Project Control Director

Effidyn supported us in our Lean Engineering approach using Kaizen. We optimized our processes by developing the strategic, managerial and operational aspects of our projects.

Understanding and taking into account our corporate culture was decisive, and all our professions and managerial layers were involved in this approach (testimonial translated from French).

Charles-Etienne Perrier

Bouygues Travaux Publics – DGA Grands projets

Perform TP Leader

In supporting Bouygues Travaux Publics in the development and deployment of its Lean Construction approach, Effidyn’s teams were able to explain the principles of Lean Management, as implemented in the manufacturing industry and convince teams of its benefits.

Effidyn’s team demonstrated its ability to listen, its understanding of the company and was able to adapt to the specificities of public works, without dogmatism and with a real understanding of the field. Effidyn always emphasizes the keys to Lean success, such as collaborative work, visual management and the involvement of all parties, including site workers (testimonial translated from French).

Didier Clair

Groupe VALEO

Director of Design To Cost deployment

Effidyn’s consultants combined expertise and pragmatism. I really enjoyed working with them to achieve the ambitious objectives we had set at Group level (testimonial translated from French).