Investor profile
Rosemarie Johnson
Syndicate / Angel group, Venture capital & Founding Partner at Persephone Venture Partners
Rosemarie Johnson works as a Founding Partner at Persephone Venture Partners. The firm's known portfolio counts 1 company.
Is Rosemarie Johnson a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Sector
- Healthcare
- Focus
- Biotech
Contacts
Affiliated funds' portfolios
Founding Partner at Persephone Venture Partners, whose known portfolio counts 1 company
- Persephone Biosciences
Investor Profile
Founders in the listed sector Healthcare, and focus area Biotech fall inside that listing.
The stage tags on this profile are Pre-Seed and Seed.
The firm portfolio and the focus above give founders context on whether Rosemarie Johnson matches their raise.
Frequently asked questions
Who is Rosemarie Johnson?
Rosemarie Johnson is a syndicate member and venture capital investor based in Cambridge, Massachusetts, United States, listed as Founding Partner at Persephone Venture Partners. The known portfolio of that firm is one company. That portfolio belongs to the firm, not to Rosemarie Johnson personally.
What does Rosemarie Johnson invest in?
Listed sectors include Healthcare; listed focus areas include Biotech. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Rosemarie Johnson invest at?
Persephone Venture Partners is listed for Pre-Seed and Seed rounds in the database, and Rosemarie Johnson is listed there as Founding Partner. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Rosemarie Johnson listed at?
Rosemarie Johnson is listed as Founding Partner at Persephone Venture Partners, whose known portfolio is one company.
How do I contact Rosemarie Johnson?
A LinkedIn page is on file for Rosemarie Johnson. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
Skip the browsing. Let AI find your ideal investors in one minute.
Paste your startup website and AI picks your best-fit investors out of 135,000+ profiles.
Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal