Making a success of the energy and environmental transition

An independent company, the Manergy Group has been operating as an engineering and consulting firm for over 40 years.

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City of Paris

AMOA and Assistance to Contractualization 30/08/2021 Paris #City
MANERGY provides assistance to the client in renewing the public service contract for Paris's cold water piping system, the largest urban...
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Expert blog

MANERGY stakeholder in the decarbonization of healthcare institutions | LE RESAH

Through the RESAH master agreement, learn how our teams at MANERGY partner healthcare stakeholders in their decarbonization strategy.
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Our values


Our commitment is based on the desire to be useful.

Useful for the energy transition, through our actions: reduction of CO2 emissions, sustainable development policy, integration of renewable energy.
This is our raison d’être, our commitment to society. And it is what drives us every day.
Useful to our clients, by building your energy strategies over the long term, in complete independence: optimizing performance, controlling costs, taking into account the specificities of each situation.
Useful to our teams, by ensuring their well-being and professional development, by applying strong principles of parity and respect for diversity.


Our values


We believe that innovation guarantees the performance and relevance of solutions.

Curiosity and agility reflect our personality. Challenging ideas or solutions, designing tailor-made solutions, thinking of each project as if it were unique, are part of our DNA.
This state of mind has allowed us to be at the initiative of several major innovations in energy production systems, such as geothermal energy or green hydrogen cogeneration.


Our values


We have built our success on a culture of excellence.

Our teams have carried out thousands of missions, bringing together the talents of high-level experts.
From strategy to implementation follow-up, our global approach secures your projects by aggregating all the technical, financial, regulatory, contractual and organizational dimensions.
We are constantly developing the expertise of our staff and the performance of our tools, in a process of permanent quality improvement.

Team spirit

Our values

Team spirit

We are engineers, and much more.

Team spirit at Manergy means that together we go further.
Together, we build a dynamic culture that values collective intelligence.
Together, we build bridges between the group’s companies, for ever greater cohesion and transversality.
The same passion for our profession combined with the ability to listen to others are the historical foundations of our group.

A global and
and expert

As an engineering and consulting firm specializing in energy and environmental transition, Manergy can intervene at every stage of your project and has full control over its scope:

Consulting and studies

We assist you in elaborating your energy and environmental strategy.


As assistants to the client, we help you define, supervise and manage your rehabilitation or construction project.

Monitoring & engineering operation

We assist you by providing you with totally objective operational supervision and engineering services for your facilities.

Project management
and Engineering

We act as prime contractor, managing all the stages of your project, from kick-off to closure, including scheduling, execution and inspection.

Our areas of activity

MANERGY’s services revolve around 3 areas of

activity of expertise…

They trust in us

Since the creation of Manergy, we have assisted over 1,300 clients.

Here is an overview of those who have trusted us.

Our references

development Manergy news

[DEVELOPMENT] 2020: a year of high growth for MANERGY

Expanding for several years, MANERGY accelerated its development in 2021 through several major acquisitions.

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