Direct emissions
7,781
tCO2e
J
John Graham Construction Limited
Explore carbon emissions data for John Graham Construction Limited. 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 John Graham Construction Limited, 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
485,457 tCO2e (Market Based)
Scope 1
tCO2e
7,781
Scope 2 (Market Based)
tCO2e
181
Scope 3 total
tCO2e
477,495
Scope 3 reported
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
Provenance
Emissions
Factors
510,221
kgCO2e / £M
Supplier specific emission factors (kgCO2e / £M)
Modelled
Reported
Scope 1 + 2
Direct + purchased energy
8,368
8,368
Upstream
+ upstream Scope 3
359,577
359,577
Total
+ all Scope 3
510,221
359,577
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
- John Graham Construction Limited reported 485,457 tCO₂e in 2025.
- Scope 3 accounted for 98% of emissions.
- Reported across 14 of 15 GHG Protocol Scope 3 categories.
- Scope 2 reported under the market based methodology.
According to available emissions disclosures, John Graham Construction Limited reported total yearly emissions of 485,457 tCO₂e in 2025. Scope 3 emissions accounted for 98% 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 2.3, placing it below average for its sector for sustainability performance, and received a transparency score of 50.8, pointing to fairly limited disclosure, with notable gaps in key areas.
Total Emissions across all scopes
485,457 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
886
tCO2eMarket based
181
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
316,475
tCO2eCat 2
Capital goods
1,123
tCO2eCat 3
Fuel & energy related activities
2,926
tCO2eCat 4
Upstream transportation & distribution
3,195
tCO2eCat 5
Waste generated in operations
460
tCO2eCat 6
Business travel
4,158
tCO2eCat 7
Employee commuting
5,826
tCO2eCat 8
Upstream leased assets
0
tCO2eCat 9
Downstream transportation & distribution
0
tCO2eCat 10
Processing of sold products
0
tCO2eCat 11
Use of sold products
143,332
tCO2eCat 12
End-of-life treatment of sold products
0
tCO2eCat 13
Downstream leased assets
0
tCO2eCat 14
Franchises
0
tCO2eCat 15
Investments
0
tCO2e1 value was derived via Mycelium's normalisation process rather than reported by the company. Cells marked “–” were not disclosed.
Contact Info
Website
www.graham.co.ukAddress
5
Ballygowan Road
Hillsborough
Hillsborough
County Down
BT26 6HX
Country
United Kingdom
Phone
+44 28 9268 9500Browse 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. John Graham Construction Limited'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 John Graham Construction Limited, the single biggest gap is Use of sold products (Scope 3 Category 11). Mycelium estimates it accounts for around 30% of the company's total footprint, typically the largest source of emissions for a Infrastructure company, yet it hasn't been disclosed. Leaving a bucket this large unreported is what's holding the transparency score down.
In total, roughly 30% of John Graham Construction Limited'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)
John Graham Construction Limited carbon emissions FAQs
What are John Graham Construction Limited's carbon emissions?
In its 2025 reporting year, John Graham Construction Limited disclosed total emissions of 485,457 tCO2e across all scopes. Scope 3 accounted for the largest share, around 98% of the total.
Does John Graham Construction Limited report Scope 1, Scope 2 and Scope 3 emissions?
For 2025, John Graham Construction Limited's available disclosure covers Scope 1 (7,781 tCO2e), Scope 2 (181 tCO2e), Scope 3 across 14 of the 15 GHG Protocol categories. Figures not reported by the company are shown as modelled estimates and labelled as such.
How transparent is John Graham Construction Limited's emissions reporting?
John Graham Construction Limited has a Mycelium transparency score of 50.8 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 John Graham Construction Limited sustainable?
Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. John Graham Construction Limited has a Mycelium Score of 2.3 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 John Graham Construction Limited environmentally friendly?
Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. John Graham Construction Limited disclosed 485,457 tCO2e for 2025, and its Mycelium Score of 2.3 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.
