In 2025, Costain Group completed a corporate carbon footprint assessment and publicly disclosed its greenhouse gas (GHG) emissions according to the GHG Protocol, covering Scope 1 (direct emissions from owned or controlled sources), Scope 2 (indirect emissions from purchased energy) and Scope 3 (indirect emissions across the value chain).
Costain Group has also provided a category-level breakdown for 8 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.
| Metric (tCO2e) | 2025 | 2024 | 2023 | 2022-2019 |
|---|---|---|---|---|
Total Scope 1 | 5,636.58a | 4,771.6a | 4,875.62a | |
Total Scope 2 | ||||
Market-Based | 272.52a | 193a | 187a | |
Location-Based | 2,476.35a | 888.07a | 1,298.69a | |
Total Scope 3 | 166,964.86a | 291,463.36a | 288,666.14a | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 4.0026a | 3.0392a | 2.8745a |
You are welcome to quote or reference individual data points from this page, provided you include the following attribution with a visible, clickable link to this page: "Source: Tracenable, the global reference for ESG data"
Bulk collection, scraping, resale, or redistribution of data across multiple company profiles is not permitted without our prior written permission. For more information, see our General Terms and Conditions.
Every figure on this dashboard has a transparent audit trail. With Tracenable, each data point is traceable back to its original source, viewable directly inside our platform.
In 2025, the total operational greenhouse gas (GHG) emissions of Costain Group amounted to 8,112.93 metric tons of CO2 equivalent. This figure includes both direct emissions from owned or controlled sources (Scope 1) and indirect emissions from purchased energy (Scope 2).a
Compared to 2024, the total operational greenhouse gas (GHG) emissions of Costain Group increased by 43.35%, suggesting that the company faced challenges in reducing its emissions from its core operations.a
In 2025, the total Scope 1 emissions of Costain Group were 5,636.58 metric tons of CO₂ equivalent (tCO₂e).a
Since 2021, Costain Group's Scope 1 emissions have decreased by 51.24%, reflecting a declining long-term trend in Scope 1 emissions over time.a
Compared to the previous year (2024), Costain Group's Scope 1 emissions increased by 18.13%, suggesting that the company faced challenges in reducing emissions from its directly owned or controlled operations.a
In 2025, Costain Group reported Scope 2 greenhouse gas (GHG) emissions of 272.52 tCO₂e using the market-based method and 2,476.35 tCO₂e using the location-based method.a
Since 2021, Costain Group's Scope 2 greenhouse gas (GHG) emissions (Location-Based) have increased by 140.19%, reflecting a rising long-term trend in Scope 2 emissions over time.a
Compared to the previous year (2024), Costain Group's Scope 2 emissions (Location-Based) rose by 178.85% in 2025, suggesting that the company faced challenges in reducing emissions from purchased electricity and energya
In 2025, Costain Group reported its Scope 2 emissions using the market-based method and using the location-based method.a
In 2025, Costain Group reported 166,964.86 metric tons of CO₂ equivalent (tCO₂e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.a
The 2025 disclosure of Costain Group includes a breakdown across 8 of the 15 Scope 3 categories defined by the GHG Protocol, matching the level of disclosure in 2024, demonstrating consistent Scope 3 emissions reporting coverage year over year.a
In 2025, Costain Group reported total Scope 3 emissions of 166,964.86 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 100% of these emissions originated from upstream activities such as purchased goods and capital goods, while 0% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2021, Costain Group's Scope 3 emissions have decreased by 50.68%, reflecting a declining long-term trend in Scope 3 emissions over time.a
Compared to the previous year (2024), Costain Group's Scope 3 emissions decreased by 42.71%, highlighting the company's efforts to lower indirect emissions from its value chain.a
In 2025, Costain Group reported emissions for 8 out of the 15 Scope 3 categories defined by the GHG Protocol.a
This partial disclosure allows for some insight into the company's indirect impacts.
In 2025, the largest contributors to Costain Group's Scope 3 emissions were:a
In 2025, Costain Group reported Scope 1 greenhouse gas (GHG) emissions of 5,636.58 tCO₂e and total revenues of USD 1,408 millions. This translates into an emissions intensity of 4 tCO₂e per millions USD.a
In 2025, Costain Group reported a Scope 1 emissions intensity of 4 tCO₂e per millions USD. Compared to the peer group median of 7.71, this places the company below its industry benchmark, indicating it is more carbon-efficient than most competitors.a
In 2025, Costain Group ranked 9 out of 23 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
Costain Group is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a
In 2025, Costain Group reported a total carbon footprint of 175,077.79 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 41.08% decrease compared to 2024, indicating progress in reducing its overall greenhouse gas output.a
The largest contributor to Costain Group's total carbon footprint was Scope 3 emissions, accounting for 95.37% of the company's total carbon footprint, followed by Scope 1 emissions at 3.22%.a