In 2025, Willis Towers Watson 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).
Willis Towers Watson has also provided a category-level breakdown for 6 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 | 8,402a | 10,492a | 9,826b | |
Total Scope 2 | ||||
Market-Based | 15,918a | 17,294a | 18,137b | |
Location-Based | 17,214a | 21,413a | 22,791b | |
Total Scope 3 | 197,014a | 321,433a | 371,468b | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 0.8655a | 1.0566a | 1.0362b |
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 Willis Towers Watson amounted to 25,616 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 Willis Towers Watson decreased by 19.71%, showing that the company has made progress in taking action to reduce the climate impact of its operations.a
In 2025, the total Scope 1 emissions of Willis Towers Watson were 8,402 metric tons of CO₂ equivalent (tCO₂e).a
Since 2019, Willis Towers Watson's Scope 1 emissions have decreased by 41.09%, reflecting a declining long-term trend in Scope 1 emissions over time.a
Compared to the previous year (2024), Willis Towers Watson's Scope 1 emissions decreased by 19.92%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.a
In 2025, Willis Towers Watson reported Scope 2 greenhouse gas (GHG) emissions of 15,918 tCO₂e using the market-based method and 17,214 tCO₂e using the location-based method.a
Since 2019, Willis Towers Watson's Scope 2 greenhouse gas (GHG) emissions (Location-Based) have decreased by 56.69%, reflecting a declining long-term trend in Scope 2 emissions over time.a
Compared to the previous year (2024), Willis Towers Watson's Scope 2 emissions (Location-Based) fell by 19.61% in 2025, showing that the company has made progress in taking action to reduce the climate impact of its energy consumption.a
In 2025, Willis Towers Watson reported its Scope 2 emissions using the market-based method and using the location-based method.a
In 2025, Willis Towers Watson reported 197,014 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 Willis Towers Watson includes a breakdown across 5 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, Willis Towers Watson reported total Scope 3 emissions of 197,014 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 2019, Willis Towers Watson's Scope 3 emissions have decreased by 54.92%, reflecting a declining long-term trend in Scope 3 emissions over time.a
Compared to the previous year (2024), Willis Towers Watson's Scope 3 emissions decreased by 38.71%, highlighting the company's efforts to lower indirect emissions from its value chain.a
In 2025, Willis Towers Watson reported emissions for 5 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 Willis Towers Watson's Scope 3 emissions were:a
In 2025, Willis Towers Watson reported Scope 1 greenhouse gas (GHG) emissions of 8,402 tCO₂e and total revenues of USD 9,708 millions. This translates into an emissions intensity of 0.87 tCO₂e per millions USD.a
In 2025, Willis Towers Watson reported a Scope 1 emissions intensity of 0.87 tCO₂e per millions USD. Compared to the peer group median of 0.61, this places the company above its industry benchmark, indicating it is less carbon-efficient than most competitors.a
In 2025, Willis Towers Watson ranked 16 out of 24 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
Willis Towers Watson is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a
In 2025, Willis Towers Watson reported a total carbon footprint of 222,630 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 36.99% decrease compared to 2024, indicating progress in reducing its overall greenhouse gas output.a
The largest contributor to Willis Towers Watson's total carbon footprint was Scope 3 emissions, accounting for 88.49% of the company's total carbon footprint, followed by Scope 2 emissions at 7.73%.a