Gresham House plc (GHE.L) is a specialist alternative asset manager that provides funds, direct investments, co-investments and tailored investment solutions focused on sustainable real assets and strategic equity opportunities. The company operates through two primary divisions: Real Assets, encompassing forestry, energy transition (including battery energy storage, renewable energy production, energy efficiency and electrification of transport and heating), sustainable infrastructure, natural capital, real estate and UK housing; and Strategic Equity, covering public and private equity investments in smaller companies and value-oriented strategies. It serves a diverse client base including institutions, family offices, high-net-worth individuals, charities, endowments and financial advisers, with assets under management totaling approximately GBP 10.2 billion following recent expansion.
Founded in 1857 and headquartered at 80 Cheapside in London, United Kingdom, Gresham House maintains operations across the UK (including offices in Witney, Dumfries and Edinburgh), Ireland (Dublin) and, following its latest acquisition, continental Europe and Southeast Asia. The firm manages strategies such as the Gresham House Energy Storage Fund plc (GRID), the Gresham House Forestry Fund LP, British Sustainable Infrastructure Fund II LP and various equity funds, emphasizing long-term themes like net-zero emissions, social impact and productive growth capital. Its sustainable investment approach integrates environmental, social and governance factors, with a commitment to UN Principles for Responsible Investment and the UK Stewardship Code.
In a transformative development completed in December 2023, Gresham House plc was acquired by Searchlight Capital Partners L.P., resulting in its delisting from the London Stock Exchange and transition to private ownership, enabling accelerated growth as a privately held entity. Most recently in September 2025, Gresham House Holdings Limited entered a definitive agreement to acquire SUSI Partners AG, a Switzerland-based energy transition infrastructure manager with EUR 3.1 billion in assets under management; this deal combines SUSI's equity and credit expertise in renewables and storage with Gresham House's UK battery storage leadership, creating a top-10 European energy transition platform, expanding into Asia and boosting overall AUM to GBP 10.2 billion. Additional recent activities include the November 2025 acquisition by its GRID fund of a 100MW/200MWh battery energy storage project in Yorkshire and ongoing product development in Southeast Asian strategies planned for 2026.