Direct emissions
1,725,522
tCO2e
B
Bouygues
Explore carbon emissions data for Bouygues. Mycelium helps you review reported emissions, disclosure status, Scope 1, Scope 2 and Scope 3 data, climate targets and sustainability information in one company profile.
This profile brings together available carbon emissions data for Bouygues, including reported figures, modelled estimates, disclosure documents and sustainability indicators, so you can review its emissions and compare its performance against similar companies. Read how we source and check this data.
Emissions
Carbon emissions
Total yearly emissions across all scopes
19,932,509 tCO2e (Market Based)
Scope 1
tCO2e
1,725,522
Scope 2 (Market Based)
tCO2e
134,500
Scope 3 total
tCO2e
18,072,487
Scope 3 reported
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
Provenance
Emissions
Factors
401,671
kgCO2e / £M
Supplier specific emission factors (kgCO2e / £M)
Modelled
Reported
Scope 1 + 2
Direct + purchased energy
37,482
37,482
Upstream
+ upstream Scope 3
297,873
297,873
Total
+ all Scope 3
401,671
390,839
Which figure should I use?
Use Modelled. It is the most complete view: any categories the company hasn't disclosed are filled with industry-typical estimates, so a transparent company isn't unfairly penalised against one that simply hasn't reported.
Reported counts only emissions the company has filed itself. A blank or low Reported cell doesn't mean those emissions don't exist, just that the company hasn't disclosed them.
When Reported sits close to Modelled, that is a positive signal. The company has disclosed most of its salient emissions and there's little gap for the model to fill. Even then, Modelled is the right figure to use for a like-for-like comparison across companies.
Sustainability
Snapshot
Based on reported data, retrieved with AI
- Bouygues reported 19,932,509 tCO₂e in 2025.
- Scope 3 accounted for 91% of emissions.
- Reported across 13 of 15 GHG Protocol Scope 3 categories.
- Total emissions decreased 7.1% from 2024.
- Disclosures available for 2 reporting years (since 2024).
- Scope 2 reported under the market based methodology.
According to available emissions disclosures, Bouygues reported total yearly emissions of 19,932,509 tCO₂e in 2025. Scope 3 emissions accounted for 91% of reported output, indicating supply chain activity, purchased goods and services, business travel, and wider operational dependencies were the most significant contributors to the company's carbon footprint.
The company achieved a Mycelium Score of 4.8, placing it mid-pack within its sector for sustainability performance, and received a transparency score of 96.5, an exceptional result, reflecting open disclosure across nearly every key emissions metric.
Total Emissions across all scopes
19,932,509 tCO2e (Market Based)
Scope 1 emissions
Direct emissions from sources the company owns or controls, such as fuel use, facilities and vehicles.
Scope 2 emissions
Indirect emissions from purchased energy, including electricity, heating and cooling.
Location based
193,910
tCO2eMarket based
134,500
tCO2eScope 3 emissions
Wider value chain emissions across the 15 GHG Protocol categories, from purchased goods and business travel to investments, where reported.
Cat 1
Purchased goods & services
10,641,773
tCO2eCat 2
Capital goods
566,322
tCO2eCat 3
Fuel & energy related activities
392,346
tCO2eCat 4
Upstream transportation & distribution
794,218
tCO2eCat 5
Waste generated in operations
178,195
tCO2eCat 6
Business travel
57,152
tCO2eCat 7
Employee commuting
166,016
tCO2eCat 8
Upstream leased assets
125,581
tCO2eCat 9
Downstream transportation & distribution
110,951
tCO2eCat 10
Processing of sold products
268,773
tCO2eCat 11
Use of sold products
4,250,349
tCO2eCat 12
End-of-life treatment of sold products
17,669
tCO2eCat 13
Downstream leased assets
93,992
tCO2eCat 14
Franchises
268,773
tCO2eCat 15
Investments
140,377
tCO2e2 values were derived via Mycelium's normalisation process rather than reported by the company. Cells marked “–” were not disclosed.
Contact Info
Browse carbon emissions data by industry
Jump straight into the sectors users explore most, or view all industries.
How scoring works
How the Mycelium Score is calculated
The Mycelium Score is out of 10. Up to 6.5 points reflect carbon intensity vs sector peers (emissions normalised against revenue). The remaining 3.5 reflect data quality: third-party verified, profile claimed by the company, and full disclosure across all reporting categories.
A higher score means lower carbon intensity than sector peers, backed by data that's third-party verified, claimed by the company, and fully disclosed. Bouygues's score sits at the top of this page and in the score panel.
How the Transparency Score is calculated
The Transparency Score measures how much of a company's key emissions data is publicly disclosed, graded from A (very high) down to F (very low). Crucially, it weights each gap by how material that bucket is for the company's industry, so an undisclosed category where the bulk of emissions sit hurts far more than a minor one.
Bouygues has disclosed the emissions categories that are material for its industry, so there's no single bucket dragging the transparency score down. The breakdown above shows full coverage across the categories that matter most for this kind of company.
Read the full scoring methodology
Our white paper covers exactly how the Mycelium Score and Transparency Score are calculated, including the normalisation process and what earns a 10/10.
Download the white paper (PDF)
Bouygues carbon emissions FAQs
What are Bouygues's carbon emissions?
In its 2025 reporting year, Bouygues disclosed total emissions of 19,932,509 tCO2e across all scopes. Scope 3 accounted for the largest share, around 91% of the total.
Does Bouygues report Scope 1, Scope 2 and Scope 3 emissions?
For 2025, Bouygues's available disclosure covers Scope 1 (1,725,522 tCO2e), Scope 2 (134,500 tCO2e), Scope 3 across 13 of the 15 GHG Protocol categories. Figures not reported by the company are shown as modelled estimates and labelled as such.
How transparent is Bouygues's emissions reporting?
Bouygues has a Mycelium transparency score of 96.5 out of 100. The score weights each emissions category by how material it is for the company's industry, so it reflects whether the disclosures that matter most have been made.
Is Bouygues sustainable?
Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. Bouygues has a Mycelium Score of 4.8 out of 10, which reflects its emissions intensity against sector peers together with how transparent and well-verified its reporting is. The emissions figures, disclosure documents and climate targets on this page give the fuller picture.
Is Bouygues environmentally friendly?
Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. Bouygues disclosed 19,932,509 tCO2e for 2025, and its Mycelium Score of 4.8 out of 10 shows how that performance compares with similar companies in its sector.
Learn more about our methodology and where this data comes from.
