The story of Helexia. The energy transition is a must for everyone. To protect our planet in the face of alarming findings, Helexia transforms energy constraints into economic, ecological and CSR levers.

For more than 10 years of history, Helexia has supported companies and organizations at every stage. Their energy transformation, by combining economy and ecology.

We work together on your energy efficiency trajectory. But also photovoltaic production, piloting and management of your energy consumption. History is being written.

Strategically and operationally, Helexia supports you at all levels. From development to operation, you can use all Helexia resources. Technical, research, legal, administrative and financial services necessary for the success of your project.


Every day for over 10 years, our teams of passionate experts have been working with our customers on integrated, local and sustainable solutions for renewable energy production and energy efficiency. We have a unique package of customized solutions, for your energy transition.


Start of the company in France by Nicolas Mayaud & Benjamin Simonis. Implementation of the model and completion of all work (sales, project management, legal and financial).

Construction of the first project with several clients through financing with banks. First major industrial and logistic coverage projects were with Bontout SA (2,5 MWp), Auchan, with the first shopping center in Montauban (France) and with Ceetrus, in the first Positive Energy building in Perpignan (France).

Internationalization to Italy begins – first self-consumption project with PPA on site and recruitment of first Italian employee.

Helexia reaches 5 MWp installed capacity.


Vision 2025 is written: We become the preferred energy services company.

Structuring of an Energy Efficiency Department and construction of the first projects in France and Belgium (revitalization, HVAC), as well as the start of Energy Management in Italy.

Opening in Portugal in 2016 under the supervision of Luis Pinho, with the structuring of an international business development model.

Helexia builds its 100th photovoltaic plant and reaches 35 MWp of installed capacity + its 5th energy performance contract.


After 10 years of strong support from Creadev, its first shareholder, Helexia joined with the Voltalia group as an autonomous shareholder, allowing an acceleration of its development and ability to reach all its customers, worldwide, on all energy issues.

Structuring of the Helexia group and opening of Helexia Brazil and Helexia Morocco in early 2020.

Launch of the first Electric Mobility projects.

Helexia recruited its 100th employee.


Continued internationalization with opening in Belgium in 2013 and the first 4 projects, all self-consumption in industrial and logistics customer buildings.

Implementation of projects with large retailers in France and Italy

Launch of the first energy performance contract for Leroy-Merlin Laurentina, Italy (-52% grid consumption).

The team becomes multinational and multidisciplinary.

Helexia reaches 11.5 MWp installed capacity.


Internalization of Production Management with dedicated team and tools, in partnership with Ciel et Terre.

Signature of Energy Management contract with Auchan and Ceetrus in France as well as Leroy-Merlin in Italy and internalization of a strong energy management team.

First cogeneration projects and ISO 50001 consulting for external clients.

200th photovoltaic plant was built accumulating a capacity of 55 MWp + 10th energy performance contract. First projects in Spain.

Helexia is a global Energy Services Company present in 6 countries with 65 employees and provides a complete and unique package of energy solutions to its customers.