Simulate the carbon footprint of your worksites
🚧 Accurately measure the carbon footprint of your worksites or your business (worksites, workshops, offices...).
💪 Thanks to our collaborative platform, engage your suppliers and employees in collecting activity data
🌱 Get an accurate, complete carbon footprint that can be used against third parties
💶 From €800 excluding VAT, depending on the size of your company
Book a free strategy call and start your carbon transition today!
Companies are already committed to working with us to achieve the global goal of carbon neutrality.

Carry out a complete GHG assessment in compliance with current standards and regulations

Get support from our GCI carbon experts

Define your reduction actions, plan your low-carbon strategy

Engage your suppliers free of charge to optimize the calculation of your Scope 3 emissions

An approved and compliant GHG inventory
Protocols included:





Calculate the precise carbon footprint of your worksites
Choose an easy-to-use online tool tailored to your sector of activity (Construction, Building & Civil Engineering).
Get a complete, compliant carbon footprint in PDF format, ready to include in your tender responses.
Explain the environmental benefits of your techniques and materials to your customers, in a precise, well-argued manner.
Capitalize on the carbon footprint of your worksites and then draw up a GHG balance sheet for your business.


Involve your suppliers in your low-carbon path
Use our collaborative customer-supplier platform to reduce your Scope 3
Automatically send emission factor requests to your suppliers
You have a private dashboard to track their commitment
Automatic integration of results into your Scope 3 calculations
Application of the ISO 14 067 standard guarantees a solid, international methodology that can be relied on by third parties.
A fully compliant GHG assessment
The methodology used combines existing and recognized work, such as Base Carbone®, CE DELFT, Shift project, ADEME, ISO, national transport accounts, etc.
Analytical report, prioritized, detailed and precise.
Audited by our Consulting team to ensure you've made no mistakes or omissions
Ready for transmission on the Ademe website.

Produce a complete, certified GHG balance sheet for your company from 800€.
They are committed
and share their experience
Gaëtan COUREUL | Amaury Sport Organisation
A.S.O chooses GCI to assess the carbon footprint of its events, starting with the Tour de France.
Benjamin GRIZBEC | French Badminton Federation
The FFBad entrusts GCI with the carbon assessment of its activities, and continues with the GHG assessment of 20 affiliated clubs.
Christophe CHRISTEN | SCHMIDT Groupe
The Schmidt Group was able to enrol 80% of its suppliers (in terms of financial volume), and save 242 tonnes of CO2.
Marlène PIVARD | Natural Grass
Natural Grass was assisted by GCI's carbon experts in carrying out its first GHG emissions assessment.
We answer your questions!
How do I calculate my company's GHG footprint?
First of all, carrying out a greenhouse gas assessment (BEGES) enables a company to precisely evaluate its carbon footprint and understand the main source of each of its greenhouse gas emissions.
The main difference between the Bilan Carbone and the Bilan GES lies in the definition of the emissions accounting perimeter.
In the Ademe methodology, the GHG balance calculation takes into account the entire life cycle of a company's products or services. This makes it possible to assess the company's overall GHG emissions and identify any sources of savings.
Greenhouse gas (GHG) emissions are assessed on the basis of consumption, using conversion factors specific to each energy source. This makes it possible to standardize measurements and obtain a quantity of emissions expressed in carbon dioxide equivalent (CO2e).
In other words, it involves multiplying your activity data (in kWh, units, liters, €) by an emission factor (average quantity of greenhouse gas emissions for 1 unit of your activity data).
Why carry out my GHG assessment?
Over and above regulatory obligations (in particular since decree no. 2022-982), carrying out a GHG assessment is an essential step for a company, as it enables it to identify and list the greenhouse gas emissions directly or indirectly linked to its activity.
Carrying out your company's first GHG assessment will enable you to make an initial measurement and identify the main emission sources. This will make it all the easier to identify potential areas for reduction and define a low-carbon strategy for your company.
Performing a GHG assessment regularly over time will provide an opportunity to adjust your action plan and ensure that you're achieving your goals for reducing your company's environmental impact.
What data do I need to provide?
To accurately measure greenhouse gas emissions, you need to identify all your company's emission sources. It is therefore necessary to collect activity data:
- Energy consumption (gas, oil, diesel, petrol, electricity, etc. .....)
- Depreciating assets (real estate, fleet of vehicles, computer equipment, furniture, etc.)
- Purchases of goods (raw materials, materials, food, etc.)
- Purchases of services (internet contract, maintenance and installation of equipment, supplies of services, fees, etc....)
- Movement of people: employee commuting, business travel, visitors and customers, etc. .....
- Haulage
- Disposal
- Use and end of life of products sold.
Although it is recommended to be as exhaustive as possible in identifying emission headings, it is possible to start with financial data and to refine the accuracy of the data over time. We recommend that you carry out your inventory in stages, starting with your largest expenditure items first.
How can I reduce my company's carbon footprint?
Reducing the carbon footprint of your company is a multi-step process:
- Carry out an initial assessment of your carbon footprint.
- Identify the most important emission headings, and find ways to reduce them by improving the accuracy of the data used for measurement.
- Involve your suppliers by asking them to calculate the carbon footprint of the goods and services they supply. The measurement will be all the more accurate and you will then be able to implement a responsible purchasing strategy.
- Set up an action plan and a measurement strategy over time to ensure that it is implemented and effective.
We are a member of :

Association pour la transition bas carbone

Association des Professionnels en Conseil Climat

Conseil National des Achats

Observatoire des Achats Responsables
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