GCM Grosvenor is an American alternative asset management firm, with approximately $91 billion in assets under management and approximately 550 professionals as of 2025. GCM Grosvenor manages assets on behalf of a global client base across hedge fund strategies, private equity, real estate, infrastructure, and multi-asset class investments. The firm specializes in developing customized portfolios for clients who want an active role in their alternatives programs; it also provides multi-client portfolios for investors. Investment offerings include direct and co-investments, secondaries, and multi-manager portfolios. GCM Grosvenor's clients are mostly institutions, such as pension funds, sovereign wealth entities, financial institutions, corporations, insurance companies, charitable organizations, and endowments. GCM Grosvenor manages approximately $28 billion in sustainable and impact assets, with a majority of these investments implemented through bespoke separate accounts tailored to investor-specific goals. Wikipedia