In 2025, Arista Networks 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).
Arista Networks has also provided a category-level breakdown for 11 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 | 1,656a | 1,345a | 2,284a | |
Total Scope 2 | ||||
Location-Based | 23,249a | 28,607a | 14,079a | |
Total Scope 3 | 5,034,580a | 3,592,781a | 2,619,577a | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 0.1839a | 0.1921a | 0.3897a |
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In 2025, the total operational greenhouse gas (GHG) emissions of Arista Networks amounted to 24,905 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 Arista Networks decreased by 16.85%, 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 Arista Networks were 1,656 metric tons of CO₂ equivalent (tCO₂e).a
Since 2019, Arista Networks's Scope 1 emissions have increased by 106.74%, reflecting a rising long-term trend in Scope 1 emissions over time.ac
Compared to the previous year (2024), Arista Networks's Scope 1 emissions increased by 23.12%, suggesting that the company faced challenges in reducing emissions from its directly owned or controlled operations.a
In 2025, Arista Networks reported Scope 2 greenhouse gas (GHG) emissions of 23,249 tCO₂e using the location-based method.a
Since 2019, Arista Networks's Scope 2 greenhouse gas (GHG) emissions (Location-Based) have increased by 251.94%, reflecting a rising long-term trend in Scope 2 emissions over time.ac
Compared to the previous year (2024), Arista Networks's Scope 2 emissions (Location-Based) fell by 18.73% in 2025, showing that the company has made progress in taking action to reduce the climate impact of its energy consumption.a
In 2025, Arista Networks reported its Scope 2 emissions using the location-based method.a
In 2025, Arista Networks reported 5,034,580 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 Arista Networks includes a breakdown across 11 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, Arista Networks reported total Scope 3 emissions of 5,034,580 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 22.88% of these emissions originated from upstream activities such as purchased goods and capital goods, while 77.12% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2019, Arista Networks's Scope 3 emissions have increased by 242.63%, reflecting a rising long-term trend in Scope 3 emissions over time.ac
Compared to the previous year (2024), Arista Networks's Scope 3 emissions increased by 40.13%, suggesting that the company faced challenges in reducing emissions across its value chain.a
In 2025, Arista Networks reported emissions for 11 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 Arista Networks's Scope 3 emissions were:a
In 2025, Arista Networks reported Scope 1 greenhouse gas (GHG) emissions of 1,656 tCO₂e and total revenues of USD 9,005 millions. This translates into an emissions intensity of 0.18 tCO₂e per millions USD.a
In 2025, Arista Networks reported a Scope 1 emissions intensity of 0.18 tCO₂e per millions USD. Compared to the peer group median of 0.54, this places the company below its industry benchmark, indicating it is more carbon-efficient than most competitors.a
In 2025, Arista Networks ranked 6 out of 24 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
Arista Networks is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a
In 2025, Arista Networks reported a total carbon footprint of 5,059,485 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 39.66% increase compared to 2024, suggesting a rise in emissions across its operations or value chain.a
The largest contributor to Arista Networks's total carbon footprint was Scope 3 emissions, accounting for 99.51% of the company's total carbon footprint, followed by Scope 2 emissions at 0.46%.a