Willis Towers Watson PLC

Willis Towers Watson PLC is one of the world's largest insurance brokers, and its brokerage activities directly enable fossil fuel extraction projects that could not proceed without insurance coverage. WTW is part of the broker network used by Everen Limited, a Bermudian insurance company that provides coverage to companies behind two of the largest new North Sea oil fields — the 325-million-barrel Rosebank and the 170-million-barrel Cambo projects. The Ferret reported in October 2022 that WTW is used by Everen to "identify and present new prospective members" seeking fossil fuel insurance coverage, and FOI responses identified WTW as one of eleven brokers who provided or arranged insurance for North Sea oil firms between January 2021 and July 2022.

The role is structurally material: without brokers and their connections, oil companies cannot access the insurance required for major extraction projects to proceed. Friends of the Earth Scotland stated that "without these firms and their crucial connections, it would be harder for fossil fuel companies to get the insurance they need." Campaigner Ariel Le Bourdonnec stated that brokers like WTW "advise and provide the oil and gas companies with captive insurance, threatening people's future for dirty oil and gas profits."

WTW has faced direct protest action over this role. On October 29, 2024, Extinction Rebellion protesters defaced WTW's offices at 51 Lime Street, London, as part of the Insure Our Survival campaign; City of London Police arrested five people for criminal damage. On January 30, 2025, protesters occupied WTW offices and targeted CEO Carl Hess in a second day of action. The Insure Our Future campaign notes that just 20 companies insure 70% of fossil fuel projects, many headquartered in London. WTW has published a Climate Transition Pathways accreditation framework but has adopted no policy restricting fossil fuel insurance brokerage — it continues to facilitate coverage for new extraction projects.