Energy & Industry Customized products, terminals, kiosks and cabinets

Grolleau meets your requirements by developing customized solutions with you to ensure the integrity of your mechanical and electrical products and know-how against severe external elements. 

Our added value

Accompanying you throughout your operation

Our study skills allow us to understand all the technical specificities of our clients and to offer adapted and innovative solutions to ensure the evolution and life span of existing solutions or the definition and production of a new integrated

Design & conception

Product design according to the client's ideas and needs.

Wiring and system integration

Product integration, testing, and direct delivery to the client's site for installation.

armoire électrique urbain


Manufacturing of customized products with recognized reliability.

Listening and advice

Understanding the client's needs with a collaborative technical approach.

Our products

Our Industry Range


Our guarantee of quality

From R&D to installation or maintenance services, Grolleau puts its expertise at the service of its clients. 

Recognized for the reliability and quality of its products, the company offers complete mastery of the value chain, from design to optimal production of specific products. 


Grolleau’s understanding of its clients’ markets allows it to accompany them in the following areas of activity: 

  • Energy & Smart City (energy and frequency conversion, battery energy storage, energy and control cabinets, variable speed drives…) 
  • Railway transport (power conversion, platform/track cabinets and enclosures…), naval (cabin doors), road (toll gates, TVM…) 
  • Retail & logistics (connected lockers) 
  • Oil & gas (variable speed drives) 



After the installation of your product on site, we ensure that your product is installed according to your recommendations and complies with current standards. Our specialist teams ensure software configuration and communication with your back-office solution. 

Integration of products into your supervision portal

In liaison with your operating team, we integrate your products into your supervision (back-office solutions), ensuring perfect compatibility for optimal monitoring of your fleet.

Maintenance contract

Regular checks of your fleet (at least once a year) and annual on-site maintenance of products to ensure high equipment availability.

Warranty extension

The initial warranty period for your fleet can be extended (modular duration with full preventive maintenance coverage).

Upgrades to your fleet

We regularly offer upgrades for your products so that they benefit from the latest existing technologies.

Training for your teams

Training of professionals in commissioning as well as preventive and corrective maintenance.

After-sales service

Our after-sales team is at your disposal for any technical questions and in case of malfunction of your product, but also to evolve your solutions.

They trust us

Our customers in industry and transport

Contact us

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industry and transport sector

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    Customer satisfaction is essential to us.

    Grolleau, a supplier in exchange, collaboration, and a guarantee of quality.

    Leroy Somer Nidec has been a customer for many years in the cabinet department, and the products have brought us satisfaction.

    Sandrine S.

    We have been working with Grolleau for many years and systematically entrust them with our new hardware projects. We know that we can count on their technical skills to provide us with quality solutions at competitive prices within schedules that are always respected. But what makes Grolleau special is the quality of human relations at all levels, and their support in the challenges specific to the size of our company.

    Julien U.