Gresham House to Buy SUSI Partners in Green Infrastructure Deal

Sept. 19, 2025, 7:17 AM UTC

UK asset manager Gresham House agreed to buy Switzerland-based SUSI Partners as part of a strategy to expand in the market for infrastructure tied to the energy transition.

The deal, whose financial terms weren’t disclosed, will give Gresham House better access to European and Southeast Asian markets, the firm said in an emailed statement on Friday. After the acquisition, Gresham House’s assets under management will rise to £10.2 billion ($13.8 billion), it said. The firm oversaw £8.7 billion in assets at the end of June.

London-based Gresham House, which was taken private by buyout firm Searchlight Capital Partnersin 2023, ...

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