Investing Profile

Patrick O'Shaughnessy(57)

CEOVCInvestorFounder

Partner and CEO @ Positive Sum

positivesumvc.comStamford, Connecticut

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Patrick O'Shaughnessy's investing connections

1 Investor

Connected to Jeff Baehr (RueOne Investments).

Networks Patrick is a member of

University of Notre Dame Network

66 CONNECTIONS

Find Patrick O'Shaughnessy on

Current Investing Position

Positive Sum VC Partner

Investment Range

$100K - $1M

Sweet Spot

$100K

Investments On Record

Current Fund Size

$20M

Patrick O'Shaughnessy is on these Sector & Stage Rankings

Cloud Infrastructure (Series A)Data Services (Seed)Cloud Infrastructure (Seed)Data Services (Series A)Enterprise (Series A)Consumer Internet (Seed)Boston / New England Consumer Internet (Series A)FinTech (Series A)FinTech (Seed)Enterprise (Seed)

Patrick O'Shaughnessy's Investments On Record (9)

Company	StageDateRound Size	Total Raised
Cubby Law	SeedAug 2025$3M	$3M
Co-investors: Jonathon Triest (Ludlow Ventures)
Passthrough	Series AFeb 2023$10M SeedFeb 2022$5M	$15M
Co-investors: Eric Bahn (Hustle Fund), Adam Demuyakor (Wilshire Lane Capital), Sam Cates (Positive Sum VC), Winter Mead (Mead and Mead), Samir Kaji (Kauffman Fellows), Robert Moore
Tegus	Series UnknownSep 2022$20M	$20M
Co-investors: Sam Cates (Positive Sum VC)
Entrepreneurs First	Series CJun 2022$160M	$380M
Co-investors: Mustafa Suleyman (Greylock), Danny Rimer (Index Ventures), Reid Hoffman (Greylock), Will Neale (Passion Capital), Andrew J Scott (7percent Ventures), Eric Schmidt (Innovation Endeavors), Matt Cohler (KKR & Co. Inc.), Nat Friedman (C2 Investment), Lachy Groom (Physical Intelligence), Sarah Leary (Unusual Ventures), Elad Gil (Think Colorado), Matt Mullenweg (Audrey Capital), Auren Hoffman (SafeGraph), Zehan Wang, Claire Hughes Johnson, John Collison, Patrick Collison, Charlie Songhurst, Tom Blomfield
HumanCo	Convertible NoteSep 2021$35M	$35M
Co-investors: Joe Lonsdale (8VC), Kurt Seidensticker (The Family Fund), Venus Williams (IK Tenns), Chris Denny-Brown (O'Shaughnessy Ventures), Nick Jonas, Edward Norton, Anjula Acharia Bath, Nick Green
Eight Sleep	Series CJun 2021	$250M
Co-investors: Fred Ehrsam (Paradigm), Trae Stephens (Founders Fund), Hemant Taneja (General Catalyst), Kevin Hartz (Founders Fund), Ryan Petersen (Founders Fund), Igor Ryabenkiy (Altair Capital Management), Sophia Amoruso (Trust Fund), Kyle Vogt (Cruise Automation, Inc.), Alex Rodriguez (Vision/Capital/People (VCP)), Jesse Robbins (Heavybit Industries), Naval Ravikant (Sm4rt Predictive Systems), Bryan Rosenblatt (Craft Ventures), Jared Friedman (Israel Defense Forces), David Sacks (Craft Ventures), Jason Calacanis (Uber), Sahin Boydas (Angel investor), Shawn Dimantha (Angel investor), Chris Moreno (Engage Ventures), Alexander Piskunov (KAAN Ventures), Matthew Dellavedova (Athletico Ventures), Ankur Nagpal (Vibe Capital), Geoffrey Woo (Anti fund), Avlok Kohli (AngelList), Moshe Lifschitz (Basement Fund), Todd Goldberg (Todd and Rahul's Angel Fund), Niv Dror (Shrug Capital), James Murphy (Proton Enterprises), Rahul Vohra (Todd and Rahul's Angel Fund), Scott Belsky (capitalB), Kal Vepuri (Brainchild), Sahil Lavingia, Anthony Pompliano, Karim Atiyeh, Kevin Hart, Babak Nivi, Marcy Simon
Prefect	Series AFeb 2021$12M	$56M
Co-investors: John Curtius (Tiger Global Management), Morgan Livermore (Quiet Capital), Ethan Kurzweil (Chemistry VC), Nat Friedman (C2 Investment), Daniel Gross (C2 Investment), Anthony Goldbloom (AIX Ventures), Gavin Baker (Atreides Management), Sam Teller (Valor Equity Partners), Chris Denny-Brown (O'Shaughnessy Ventures)
Bottomless	Series AJan 2021$5M	$5M
Co-investors: Dalton Caldwell (Standard Capital), Turner Novak (Banana Capital)