Iron Mountain

Iron Mountain, a US-headquartered company in the Data Processing, Hosting, and Related Services industry, is committed to reducing its carbon emissions.

For the most recent reported year, 2025, Iron Mountain's total emissions are projected to be approximately 1.19 billion kg CO2e. This includes Scope 1 emissions of about 120.87 million kg CO2e, market-based Scope 2 emissions of approximately 3.53 million kg CO2e, and Scope 3 emissions of around 1.02 billion kg CO2e.

Looking back, in 2024, the company's total emissions were approximately 1.08 billion kg CO2e, comprising about 115.73 million kg CO2e for Scope 1, around 3.64 million kg CO2e for market-based Scope 2, and approximately 913.16 million kg CO2e for Scope 3. In 2023, Iron Mountain reported total emissions of roughly 992.17 million kg CO2e, with Scope 1 at about 113.53 million kg CO2e, market-based Scope 2 at approximately 2.72 million kg CO2e, and Scope 3 at around 813.34 million kg CO2e.

Iron Mountain has established several climate commitments and has received validation for its Science Based Targets. The company commits to reaching net-zero greenhouse gas emissions across its value chain by 2040.

Near-term targets validated by the Science Based Targets initiative (SBTi) include:

• A 54.6% absolute reduction in Scope 1 and 2 GHG emissions by 2033 from a 2022 base year.
• Ensuring that 84.2% of its suppliers, by emissions covering purchased goods and services, capital goods, business travel, and upstream transportation and distribution, will have science-based targets by 2028.

Long-term targets validated by SBTi include:

• A 90% absolute reduction in Scope 1 and 2 GHG emissions by 2040 from a 2022 base year.
• A 90% absolute reduction in Scope 3 GHG emissions within the same timeframe.

The company has previously achieved a significant reduction, having reduced absolute Scope 1 and 2 GHG emissions by 62% by 2020 from a 2016 baseline, surpassing its initial Science-Based Target of a 25% reduction six years early. More recently, Iron Mountain reduced its Scope 1 and 2 GHG emissions by 10% from 2022 to 2023. Additionally, they aim to achieve a 25% reduction of GHG emissions from Scope 1 & 2 energy sources by 2025 from a 2019 baseline.

Iron Mountain is also a signatory of The Climate Pledge, committing to reach net-zero carbon emissions by 2040, ten years ahead of the Paris Agreement's 2050 target.