Aspen Insurance is a global specialty insurer and reinsurer, headquartered in Bermuda and operating in key markets such as the UK, US, and Australia, with a focus on complex and tailored risk solutions. 

While the firm has taken steps to reduce its own operational carbon footprint and has a Fossil Fuel Policy, critics argue this policy is riddled with loopholes. The company has explicitly stated its willingness to underwrite high-emission sectors, including oil and gas, and its own sustainability report notes it is developing underwriting guidelines to integrate ESG considerations, but this is a work in progress. Although Aspen has pledged not to renew insurance for certain controversial projects like the Trans Mountain tar sands pipeline, its ongoing participation in fossil fuel-related activities means it continues to enable industries that drive the climate crisis. This selective approach means Aspen continues to provide crucial financial backing for carbon-intensive ventures, directly contributing to the expansion of fossil fuel use and undermining global efforts to meet climate targets.