Direct emissions
1,299
tCO2e
L
London Stock Exchange PLC
Explore carbon emissions data for London Stock Exchange PLC. 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 London Stock Exchange PLC, 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
1,227,206 tCO2e (Market Based)
Scope 1
tCO2e
1,299
Scope 2 (Market Based)
tCO2e
459
Scope 3 total
tCO2e
1,225,448
Scope 3 reported
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
Provenance
Review the sources and documents behind London Stock Exchange PLC's emissions data. Provenance matters because it shows where the information comes from, how recent it is and how complete the disclosure appears to be.
Documents
No source document on file.
Carbon accountant
–
Emissions
Factors
131,308
kgCO2e / £M
Supplier specific emission factors (kgCO2e / £M)
Modelled
Reported
Scope 1 + 2
Direct + purchased energy
188
188
Upstream
+ upstream Scope 3
30,361
188
Total
+ all Scope 3
131,308
188
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
- London Stock Exchange PLC reported 1,227,206 tCO₂e in 2025.
- Scope 3 accounted for 100% of emissions.
- Scope 2 reported under the market based methodology.
According to available emissions disclosures, London Stock Exchange PLC reported total yearly emissions of 1,227,206 tCO₂e in 2025. Scope 3 emissions accounted for 100% 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 0.7, placing it well below average for its sector for sustainability performance, and received a transparency score of 12.0, pointing to very little public detail on their key emissions.
Total Emissions across all scopes
1,227,206 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
67,705
tCO2eMarket based
459
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
208,883
tCO2eCat 2
Capital goods
10,444
tCO2eCat 3
Fuel & energy related activities
10,444
tCO2eCat 4
Upstream transportation & distribution
10,444
tCO2eCat 5
Waste generated in operations
10,444
tCO2eCat 6
Business travel
10,444
tCO2eCat 7
Employee commuting
10,444
tCO2eCat 8
Upstream leased assets
10,444
tCO2eCat 9
Downstream transportation & distribution
10,444
tCO2eCat 10
Processing of sold products
10,444
tCO2eCat 11
Use of sold products
654,500
tCO2eCat 12
End-of-life treatment of sold products
10,444
tCO2eCat 13
Downstream leased assets
10,444
tCO2eCat 14
Franchises
10,444
tCO2eCat 15
Investments
236,734
tCO2e15 values were derived via Mycelium's normalisation process rather than reported by the company. Cells marked “–” were not disclosed.
Contact Info
Website
www.londonstockexchange.comAddress
10 Paternoster Square
London
London
Greater London (City Of London)
EC4M 7LS
Country
United Kingdom
Phone
+44 20 7797 1000Browse carbon emissions data by industry
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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. London Stock Exchange PLC'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.
For London Stock Exchange PLC, the single biggest gap is Use of sold products (Scope 3 Category 11). Mycelium estimates it accounts for around 53% of the company's total footprint, typically the largest source of emissions for a Services company, yet it hasn't been disclosed. Leaving a bucket this large unreported is what's holding the transparency score down.
Other material categories London Stock Exchange PLC hasn't disclosed:
- Investments (Scope 3 Category 15), around 19% of the estimated footprint
- Purchased goods & services (Scope 3 Category 1), around 17% of the estimated footprint
In total, roughly 89% of London Stock Exchange PLC's estimated emissions sit in categories it hasn't reported. Disclosing these would be the fastest way to raise the transparency score.
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)
London Stock Exchange PLC carbon emissions FAQs
What are London Stock Exchange PLC's carbon emissions?
In its 2025 reporting year, London Stock Exchange PLC disclosed total emissions of 1,227,206 tCO2e across all scopes. Scope 3 accounted for the largest share, around 100% of the total.
Does London Stock Exchange PLC report Scope 1, Scope 2 and Scope 3 emissions?
For 2025, London Stock Exchange PLC's available disclosure covers Scope 1 (1,299 tCO2e), Scope 2 (459 tCO2e). Figures not reported by the company are shown as modelled estimates and labelled as such.
How transparent is London Stock Exchange PLC's emissions reporting?
London Stock Exchange PLC has a Mycelium transparency score of 12 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 London Stock Exchange PLC sustainable?
Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. London Stock Exchange PLC has a Mycelium Score of 0.7 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 London Stock Exchange PLC environmentally friendly?
Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. London Stock Exchange PLC disclosed 1,227,206 tCO2e for 2025, and its Mycelium Score of 0.7 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.
