In 2025, Cisco Systems 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).
Cisco Systems has also provided a category-level breakdown for 10 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 | 24,382a | 32,652a | 39,514a | |
Total Scope 2 | ||||
Market-Based | 131a | 28,418a | 81,806a | |
Location-Based | 505,957a | 563,518a | 567,637a | |
Total Scope 3 | 20,277,743a | 19,767,693a | 25,879,741a | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 0.4304a | 0.6069a | 0.6933a |
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In 2025, the total operational greenhouse gas (GHG) emissions of Cisco Systems amounted to 530,339 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 Cisco Systems decreased by 11.04%, 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 Cisco Systems were 24,382 metric tons of CO₂ equivalent (tCO₂e).a
Since 2019, Cisco Systems's Scope 1 emissions have decreased by 47.8%, reflecting a declining long-term trend in Scope 1 emissions over time.a
Compared to the previous year (2024), Cisco Systems's Scope 1 emissions decreased by 25.33%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.a
In 2025, Cisco Systems reported Scope 2 greenhouse gas (GHG) emissions of 131 tCO₂e using the market-based method and 505,957 tCO₂e using the location-based method.a
Since 2019, Cisco Systems's Scope 2 greenhouse gas (GHG) emissions (Location-Based) have decreased by 22.79%, reflecting a declining long-term trend in Scope 2 emissions over time.a
Compared to the previous year (2024), Cisco Systems's Scope 2 emissions (Location-Based) fell by 10.21% in 2025, showing that the company has made progress in taking action to reduce the climate impact of its energy consumption.a
In 2025, Cisco Systems reported its Scope 2 emissions using the market-based method and using the location-based method.a
In 2025, Cisco Systems reported 20,277,743 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 Cisco Systems includes a breakdown across 10 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, Cisco Systems reported total Scope 3 emissions of 20,277,743 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 40.79% of these emissions originated from upstream activities such as purchased goods and capital goods, while 59.21% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2019, Cisco Systems's Scope 3 emissions have decreased by 32.13%, reflecting a declining long-term trend in Scope 3 emissions over time.a
Compared to the previous year (2024), Cisco Systems's Scope 3 emissions remained relatively stable, indicating that Cisco Systems's emissions have plateaued with no significant change in its value chain footprint.a
In 2025, Cisco Systems reported emissions for 10 out of the 15 Scope 3 categories defined by the GHG Protocol.a
This reflects a high level of granularity and transparency in the company's emissions reporting.
In 2025, the largest contributors to Cisco Systems's Scope 3 emissions were:a
In 2025, Cisco Systems reported Scope 1 greenhouse gas (GHG) emissions of 24,382 tCO₂e and total revenues of USD 56,650 millions. This translates into an emissions intensity of 0.43 tCO₂e per millions USD.a
In 2025, Cisco Systems reported a Scope 1 emissions intensity of 0.43 tCO₂e per millions USD. Compared to the peer group median of 1.17, this places the company below its industry benchmark, indicating it is more carbon-efficient than most competitors.a
In 2025, Cisco Systems ranked 2 out of 24 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
This places Cisco Systems among the top performers, with one of the lowest emissions intensities relative to peers.a
In 2025, Cisco Systems reported a total carbon footprint of 20,808,082 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 2.18% increase compared to 2024, suggesting a rise in emissions across its operations or value chain.a
The largest contributor to Cisco Systems's total carbon footprint was Scope 3 emissions, accounting for 97.45% of the company's total carbon footprint, followed by Scope 2 emissions at 2.43%.a