Declaration Partners (Rubenstein Family Office) is a family office - multi based in New York, NY, United States, founded in 2018. Verified contact details, AUM data, and investment preferences on FindLPs.
Declaration Partners offers global expertise in flexible investment strategies and growth opportunities for long-term investors, all grown from a family office.
FindLPs holds verified direct email addresses and phone numbers for decision-makers at Declaration Partners (Rubenstein Family Office). Contact details are masked on the free plan — start a plan to unlock full access and CSV export.
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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 We do not publish personal residential information; firms or individuals may request removal at /contact.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.