Declaration Partners LP

Investment ManagementNew York, United States11-50 Employees

Declaration Partners is a private investment firm that seeks to be a value-added capital partner and strategic resource to founders & entrepreneurs, management teams, and asset owners. Anchored by the family office of private equity veteran and philanthropist David M. Rubenstein, Declaration invests on behalf of family offices and like-minded institutional investors. Declaration’s approach emphasizes partnership born from its family office heritage while seeking to achieve favorable long-term outcomes with strong alignment. Declaration has approximately $2.1 billion in assets under management (as of September 2025) across its private investment strategies, which include tactical growth equity, real estate, GP solutions, and other opportunistic strategies. The firm was founded in 2017 and is headquartered in New York with an office in the Washington, DC area.

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