Declaration Partners is a family office - single based in New York, United States, founded in 2017. Verified contact details, AUM data, and investment preferences on FindLPs.
Declaration Partners LP is an investment firm backed by the family office of David M. Rubenstein, the Co-Founder and Co-Executive Chairman of The Carlyle Group. With permanent capital and a broad and flexible mandate, Declaration makes private equity and real estate investments, including building platform businesses, providing growth equity capital, seeding early stage private funds and venture studios, and partnering with family-owned businesses. Declaration is long-term oriented and partners with management teams to create sustainable long-term value. The firm is headquartered in New York with an office in Washington, DC.
Investment types: Venture Capital - Early Stage, Co-Investing, Growth Capital, Joint Venture/Partner, Private Equity, Venture Capital, Real Estate - General
Sectors & themes: Cybersecurity, Investment Management, Startups & Management, Commercial Property Acquisition & Development, Residential Property Acquisition & Development, Technology, Emerging Technology, Finance, Financial Services, Alternative Investments, Real Estate, Real Estate Investment & Development
Preferred geographies: United States
Location: 510 Madison Avenue\n18Th Floor\nNew York\nNew York\n10022\nUnited States
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LP firm data compiled from public regulatory filings (SEC Form ADV, FCA, AIFMD disclosures), company websites and press releases, LinkedIn public profiles, and verified outbound email testing. AUM figures reflect self-reported values from filings and may lag by 1–2 fiscal quarters; bands are normalized in USD. We do not publish personal residential information; firms or individuals may request removal at /contact. Methodology & sources · Updated July 2026.