About us

MasterGrid supports its customers as a partner for high voltage equipment services.

Expertise at the heart of your projects

Born from a strong heritage and a growing desire to innovate, MasterGrid is your partner in the high voltage market.  We combine technical expertise with personal commitment, to ensure the requirements of your projects are our daily focus.

Support at every step

We build a unique relationship with our customers by focusing on listening to their needs, in order to support them on all their projects.

Unique positioning

Combining the recognize know-how of a manufacturer and the agility of a human-size entity, MasterGrid has a unique position in manufacturing and services dedicated to High Voltage equipment.

This position allows us to adapt to our customers needs by offering tailor-made solutions and products.

A multidisciplinary team

MasterGrid has all the necessary skills from design of solutions to the implementation, whether in our workshop or on your installations.


History of an expert in the High Voltage field


Establishment of Merlin Gerin


Establishment of Schneider Electric (merger of Schneider, Merlin Gerin, Square D & Télémécanique)


Joint Venture VA Tech + Schneider Electric (High Voltage activity)


Siemens buys VA Tech

December 2019

Creation of MasterGrid 


We commit to respecting the values that have always been with us:

Technical expertise

Customer focus

Operational excellence


Discover our history and our jobs

From 1920 to 2020 discover all the steps that lead to the creation of MasterGrid in Grenoble.

Our cutting-edge expertise combined with the agility of an independent entity allows us to anticipate your needs.

Our main customers in France and abroad

Our equipment is present in 70 countries

Carte des pays où est implanté MasterGrid

Our certifications & labels

MasterGrid is ISO 9001, ISO 14001 et ISO 45001 certified