River Birch Partners is a family office - single based in Portsmouth, United States. Verified contact details, AUM data, and investment preferences on FindLPs.
New England-based private investment firm engaged in equity investments in profitable private companies in the lower middle market.
FindLPs holds verified direct email addresses and phone numbers for decision-makers at River Birch Partners. 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 We do not publish personal residential information; firms or individuals may request removal at /contact.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.