MUUS Asset Management (Michael Sonnenfeldt Family Office) is a family office - single based in New York, NY, United States, founded in 1998. Verified contact details, AUM data, and investment preferences on FindLPs.
MUUS is the home of the investment, philanthropic, and creative endeavors of Tiger 21 founder Michael Sonnenfeldt. We invest in a bolder, more sustainable future..
FindLPs holds verified direct email addresses and phone numbers for decision-makers at MUUS Asset Management (Michael Sonnenfeldt Family Office). Contact details are masked on the free plan — start a plan to unlock full access and CSV export.
Unlock Contact DetailsSearch 25,850 limited partners with verified contact details.
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 We do not publish personal residential information; firms or individuals may request removal at /contact.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.