Iron Mountain

Iron Mountain, a data processing, hosting, and related services company headquartered in the US, reported a total of approximately 1.188 billion kg CO2e in emissions for 2025. This figure encompasses Scope 1, 2, and 3 emissions.

Key emissions data points for recent years include:

• 2025: Total: 1,188,141,000 kg CO2e. Scope 1: 120,873,000 kg CO2e. Scope 2 (market-based): 46,965,000 kg CO2e. Scope 3: 1,020,303,000 kg CO2e.
• 2024: Total: 1,080,816,000 kg CO2e. Scope 1: 115,728,000 kg CO2e. Scope 2 (market-based): 51,927,000 kg CO2e. Scope 3: 913,160,000 kg CO2e.
• 2023: Total: 992,174,000 kg CO2e. Scope 1: 113,532,000 kg CO2e. Scope 2 (market-based): 65,302,000 kg CO2e. Scope 3: 813,340,000 kg CO2e.

Iron Mountain has made significant climate commitments, including a long-term goal to achieve net-zero emissions by 2040. They have also committed to covering 100% of their global electricity consumption with clean energy by 2040.

The company has established several Science-Based Targets (SBTi). Notably, they committed to a 20% reduction in absolute Scope 1, 2, and 3 GHG emissions by 2025 from a 2016 baseline. Furthermore, they have set near-term targets to reduce absolute Scope 1 and 2 GHG emissions by 54.6% by 2033 from a 2022 base year, and a long-term target to reduce absolute Scope 1 and 2 GHG emissions by 90% by 2040 from the same 2022 base year. They also commit to reducing absolute Scope 3 GHG emissions by 90% by 2040.

Iron Mountain has also achieved notable reductions, reporting a 10% reduction in Scope 1 and 2 GHG emissions from 2022 to 2023, and a 16% reduction in Scope 1 and 2 GHG emissions from 2022 to 2024. They are also a signatory to the Climate Pledge.