Warburg Mulls $1 Billion Sale of London Insurance Broker McGill

The private equity firm has held early talks with potential advisers to explore options for London-based McGill, the people said, asking not to be identified as the information isn’t public. McGill could be valued at more than $1 billion in a deal, the people said.

A process could start later this year, though Warburg could still opt to keep the business, the people added. A representative for Warburg declined to comment. A representative for McGill also declined to comment, saying the management team is focused on running the company and executing the strategy for long-term growth.

McGill was founded in 2019 by Steve McGill, a former group president of Aon Plc. The firm helps broker insurance for sectors including aviation and aerospace, property and construction, energy, marine and cargo, its website shows. McGill posted revenue growth of more than 20% in the first half of 2025 and an increase of 79% in its adjusted earnings before interest, taxes, depreciation and amortization from the same period in 2024.

Warburg first invested in McGill in 2019. Five years later, it moved the company into a multi-asset continuation vehicle backed by HarbourVest Partners, Ardian and the Canada Pension Plan Investment Board. In September, McGill secured new credit facilities worth $300 million from Morgan Stanley, Permira and Bridgepoint Group Plc, saying it would support its next phase of growth.

Photograph: A commuters crosses Tower Bridge in view of skyscrapers on the skyline of the City of London, UK, on Monday, Dec. 15, 2025. Photo credit: Jason Alden/Bloomberg

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Topics Agencies London