Iron Mountain

Iron Mountain, a US-based company in the Data Processing, Hosting, and Related Services industry, reported its most recent Scope 1, 2, and 3 carbon emissions for 2025 as approximately 1,188,141,000 kg CO2e. This includes Scope 1 emissions of about 120,873,000 kg CO2e, market-based Scope 2 emissions of around 46,965,000 kg CO2e, and Scope 3 emissions totalling approximately 1,020,303,000 kg CO2e.

Looking back, Iron Mountain's total emissions were approximately 1,080,816,000 kg CO2e in 2024, approximately 992,174,000 kg CO2e in 2023, and about 874,798,000 kg CO2e in 2022.

The company has set several climate commitments and reduction targets. Iron Mountain has committed to achieving net-zero emissions across its value chain by 2040. They also aim for a 25% reduction in Scope 1 and 2 GHG emissions from a 2019 baseline by 2025.

Iron Mountain's near-term Science Based Targets initiative (SBTi) commitments include reducing absolute Scope 1 and 2 GHG emissions by 54.6% by 2033 from a 2022 base year. Furthermore, they commit that 84.2% of their suppliers (by emissions covering purchased goods and services, capital goods, business travel, and upstream transportation and distribution) will have science-based targets by 2028. For long-term targets, Iron Mountain aims to reduce absolute Scope 1 and 2 GHG emissions by 90% by 2040 from a 2022 base year, and also to reduce absolute Scope 3 GHG emissions by 90% within the same timeframe.

The company has previously achieved significant reductions, having already reached a 52% reduction in absolute emissions from a 2016 baseline by 2019, exceeding their initial SBTi target of 25% reduction. By 2020, this reduction had increased to 62%. More recently, Iron Mountain reduced its Scope 1 and 2 GHG emissions by 10% from 2022 to 2023 and by 16% from 2022 to 2024.

Iron Mountain is also a signatory of The Climate Pledge, having signed in May 2021.