“70 years offering to our clients reliable, simple and flexible solutions”

We specialize in the design and manufacturing of Medium and High Voltage energy solutions for Railways and High Speed Trains, Utilities, Renewable Energies and Electro-intensive Industries; Oil & Gas, Mining and Big Industry in general.


Leaders in the national market and have a strong presence in more than 100 countries.

Latest news


Training for ACCIONA Energía on MESA's Secondary Distribution Switchgears

On the 11th January, we have received at MESA site in Mungia the visit of a group of technicians from ACCIONA Energía in order to attend a training in MESA's Secondary Distribution Switchgears. [...]


Training for REE in MESA: HV disconnectors and operating mechanism

On 17th and 18th we received at MESA in Mungia the third group of REE of the year composed of 6 field technicians. [...]


HV Disconnectors and operating mechanism training for REE in MESA

On 3rd & 4th of October we received REE's second group corresponding to the training in maintenance of MESA's disconnectors and Operating mechanism for High Voltage Grids [...]

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Railways and High Speed Rail

Presents in Spain’s main infrastructures.


70 years of innovation alongside utilities

Renewable Energy

Worldwide leader in medium voltage protection for wind farms.

Oil & Gas, Mining and Big Industry

Strong presence in Spain main infrastructures


New video - Railways

MESA Solutions for the Railways

New video - Renewable Market

MESA Solutions for the Renewable Market