Patrick O'Shaughnessy

Partner · Positive Sum VC · Stamford, United States

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Partner and CEO @ Positive Sum

Stages: Series A, Seed
Cheque size: €92k–€920k
Location: Stamford, United States
Freshness: Verified today
Fund size: $20M

Notable investments

Cubby LawSeed · $3M · 2025
PassthroughSeries A · $10M · 2023
TegusSeries Unknown · $20M · 2022
Entrepreneurs FirstSeries C · $160M · 2022
HumanCoConvertible Note · $35M · 2021
Eight SleepSeries C · $250M · 2021
PrefectSeries A · $12M · 2021
BottomlessSeries A · $5M · 2021

Frequently co-invests with

Chris Denny-BrownO'Shaughnessy Ventures2×Nat FriedmanC2 Investment2×Sam Catesdaybreak2×Adam DemuyakorWilshire Lane CapitalAlex Rodriguez (Vision/Capital/People (VCP))Alexander PiskunovKAAN VenturesAndrew J Scott7percent VenturesAnjula Acharia BathAnkur NagpalVibe CapitalAnthony GoldbloomAIX VenturesAnthony PomplianoAuren HoffmanDatavant

In the press

Patrick O'Shaughnessy's Venture Capital Firm Positive Sum Invests $20M in Investment Technology Platform Tegus

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