Venture Capital Firm | Contact & Fund History
3
$648M
Positive Sum Capital III, L.P.
Dec 2024 · $185M
PATRICK W. O'SHAUGHNESSY; Patrick O'Shaughnessy
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3 team members listed on the firm's website
Patrick O'Shaughnessy
Founder & Partner
Alison Davis Riddell
Partner
Joe Parker
COO
Listed on the firm's own website: positivesum.com. Titles can change; check the firm's site before reaching out.
To contact Positive Sum Capital: visit positivesum.com; their team of 3 is listed on their website.
Positive Sum Capital has raised 3 tracked funds, totaling $648M in tracked capital.
Positive Sum Capital is headquartered in Greenwich, CT.
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Data Sources: SEC EDGAR filings, company disclosures, and verified public records.
Profile updated: Oct 23, 2026