Oresys, an independent company

ORESYS, a consultancy firm founded in 1981, has been directed for over 25 years by René Mandel, Yves Salomon and Nicolas Garin. Its capital is held by all its partners, who are all Oresys consultants. A major player in the management and organisation consultancy sector, ORESYS works with corporate clients to support them in their change projects and in improving their performance. Our 210 specialist consultants work in synergy with internal teams. They are distinctive due to their multi-skilled business approach, in both functional and technological areas.

Our know-how

Our know-how covers definition of strategy up to operational implementation, including organisation, change management and information systems. Oresys has the skills and tools needed to assist its clients in all aspects of large-scale change management projects. ORESYS has also created ORESYS Solutions and ORESYS Testing, skills units with concentrated know-how in these specific activities.

The first consultancy firm to be certified

Oresys received ISO 9001 certification for the first time in 1995. This has been renewed every year. Our assignments systematically include a commitment to results.