United Internet

United Internet, a German post and telecommunication services provider, reported total emissions of approximately 992.5 million kg CO2e in 2025. This includes about 4.2 million kg CO2e from Scope 1, approximately 2.8 million kg CO2e from Scope 2 (market-based), and roughly 985.5 million kg CO2e from Scope 3 emissions.

In 2024, United Internet's total emissions were approximately 1.14 billion kg CO2e, comprising around 6.5 million kg CO2e for Scope 1, about 2.6 million kg CO2e for Scope 2 (market-based), and approximately 1.13 billion kg CO2e for Scope 3.

Looking back to 2023, the company's total emissions stood at roughly 1.13 billion kg CO2e, with Scope 1 emissions at approximately 6.2 million kg CO2e, Scope 2 (market-based) at about 3.1 million kg CO2e, and Scope 3 at around 1.12 billion kg CO2e.

United Internet has set ambitious climate commitments, aiming for net-zero emissions across all scopes by 2045, aligning with the Paris Agreement and German climate goals. An interim target for Scope 1 and Scope 2 emissions is a 55% reduction (approximately 5.14 million kg CO2e) by the end of 2030, compared to the 2023 base year. This translates to an overall 90% long-term reduction by 2045 for Scope 1 and 2 emissions from the 2023 baseline of 9.35 million kg CO2e. Furthermore, the company aims to reduce Scope 1 and Scope 2 emissions to near zero by the middle of this decade. Their 1&1 IONOS Holding data centre operations are climate-neutral, utilising green electricity and offsetting non-renewable energy sources. IONOS has also been a certified VMware Zero Carbon Committed Partner since 2021, pledging to power its data centres solely with renewable energy by 2030.