Aon plc, a leading global professional services firm headquartered in Great Britain, specialises in risk, retirement, and health solutions. Founded in 1982, Aon has established a strong presence across major operational regions, including North America, Europe, and Asia-Pacific. The company is renowned for its innovative approach to risk management and insurance brokerage, offering unique products and services that cater to diverse client needs. With a commitment to delivering data-driven insights, Aon stands out in the industry through its advanced analytics and technology solutions. The firm has achieved significant milestones, including numerous awards for excellence in service delivery and client satisfaction. As a trusted partner for businesses worldwide, Aon continues to solidify its market position, helping clients navigate complex challenges in an ever-evolving landscape.
How does Aon's carbon action stack up? DitchCarbon scores companies based on their carbon action and commitment to reducing emissions. Read about our methodology to learn more.
Mean score of companies in the Financial Intermediation industry. Comparing a company's score to the industry average can give you a sense of how well the company is doing compared to its peers.
Aon's score of 74 is higher than 85% of the industry. This can give you a sense of how well the company is doing compared to its peers.
In 2024, Aon reported total carbon emissions of approximately 463,204,000 kg CO2e, a decrease from about 499,039,000 kg CO2e in 2023. The emissions breakdown for 2024 includes 15,235,000 kg CO2e from Scope 1, 31,787,000 kg CO2e from Scope 2, and a significant 416,183,000 kg CO2e from Scope 3 emissions. This indicates a continued reliance on indirect emissions, which constitute the majority of their carbon footprint. Aon is committed to achieving net-zero carbon emissions by 2030, with a focus on all scopes of emissions. Additionally, the company has set ambitious targets through the Science Based Targets initiative (SBTi), aiming for a 55% reduction in absolute Scope 1 and 2 greenhouse gas emissions by 2032, using 2019 as the base year. Furthermore, Aon plans for 81% of its suppliers, covering purchased goods and services, capital goods, and upstream leased assets, to have science-based targets by 2027. This commitment reflects Aon's proactive approach to climate action within the professional services sector, aligning with global efforts to mitigate climate change impacts.
Access structured emissions data, company-specific emission factors, and source documents
| 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|---|
| Scope 1 | 14,060,000 | 0,000,000 | 0,000,000 | 00,000,000 | 00,000,000 | 00,000,000 |
| Scope 2 | 22,298,000 | 00,000,000 | 00,000,000 | 00,000,000 | 00,000,000 | 00,000,000 |
| Scope 3 | 502,398,000 | 00,000,000 | 000,000,000 | 000,000,000 | 000,000,000 | 000,000,000 |
Climate goals typically focus on 2030 interim targets and 2050 net-zero commitments, aligned with global frameworks like the Paris Agreement and Science Based Targets initiative (SBTi) to ensure alignment with global climate goals.
Aon has established climate goals through participation in recognized frameworks and target-setting initiatives. Companies often set interim 2030 targets and long-term 2050 net-zero goals to demonstrate measurable progress toward decarbonization.


Common questions about Aon's sustainability data and climate commitments