The company

Specialised in precision machining, UMP manufactures high value-added mechanical parts for more than 50 years

UMP is a family business created in 1970.
Working mainly in numerical control, components of complex type, units, small and medium series. Recognised as a quality supplier, UMP has EN 9100 and IS0 9001 certifications.

UMP is a very agile structure, with a flexible production tool, that regularly handles urgent and complex orders.
The company offers a complete service, thanks to the support of subcontractors, integrating if necessary, grinding, surface treatment, heat treatment, etc.

UMP has established a long-standing business relation with leading companies in the aerospace, defence and automotive industries.
The company has a unique and attractive positioning. Its size gives it a great reactivity, and its “savoir-faire” a reference for major contractors.

UMP is located in Thoiry, in the Yvelines (45kms from Paris). The company belongs to Elyzée Consortium: a multi-skill and multi-sector industrial center in Ile de France.

Michel Négarvile

“A quality-oriented company”

Michel Negarville

Tier 1 supplier to blue chip companies in the aerospace and automotive industry

Production equipment :
20 machines


Our products

“Your skills are our strength. We are seeking talents to join UMP, please feel free to contact us for more information ”


UMP, Usinage Moderne de Précision, Z.A Clos de Villarceaux, 78770 Thoiry – PHONE : +33