PO

Investor profile

Patrick O'Shaughnessy

Venture capital & Chief Executive Officer at Positive Sum

Patrick O'Shaughnessy is a Chief Executive Officer at Positive Sum, whose known portfolio counts 9 companies.

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Investment focus

Contacts

LinkedIn profile on fileAvailable after registration.
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Affiliated funds' portfolios

Chief Executive Officer at Positive Sum, whose known portfolio counts 9 companies

  • ID.me
  • Rogo
  • Skyryse
  • Etched.ai
  • Manufactured
  • Base Power
  • Passthrough
  • Prefect
  • Tegus

Investor Profile

Patrick O'Shaughnessy is listed against sectors AI, Climate, Consumer and FinTech, and focus areas AI Applications, API, Asset Management and Clinical Trials in the database.

Positive Sum appears in Growth, Seed and Series A rounds across its known deals.

The firm portfolio and the focus above give founders context on whether Patrick O'Shaughnessy matches their raise.

Colleagues at Positive Sum

Frequently asked questions

Who is Patrick O'Shaughnessy?

Patrick O'Shaughnessy is a venture capital investor based in Greenwich, Connecticut, United States, listed as Chief Executive Officer at Positive Sum. The known portfolio of that firm counts 9 companies. That portfolio belongs to the firm, not to Patrick O'Shaughnessy personally.

What does Patrick O'Shaughnessy invest in?

Listed sectors include AI, Climate, Consumer and FinTech; listed focus areas include AI Applications, API, Asset Management and Clinical Trials. 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 Patrick O'Shaughnessy invest at?

Positive Sum appears in Growth, Seed and Series A rounds across its known deals, and Patrick O'Shaughnessy is listed there as Chief Executive Officer. 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 Patrick O'Shaughnessy listed at?

Patrick O'Shaughnessy is listed as Chief Executive Officer at Positive Sum. One other person in the database shares a firm with Patrick O'Shaughnessy.

How do I contact Patrick O'Shaughnessy?

A LinkedIn page is on file for Patrick O'Shaughnessy. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.

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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal