Positive Sum Advisors LLC
SEC exempt reporting adviser (venture capital exemption).
- Website
- https://positivesum.com
- HQ
- CT
Positive Sum Advisors LLC says it backs founders pursuing their life's work. The team listed includes Patrick O'Shaughnessy, Alison Davis Riddell, and Jeremy Stern, among others. Listed portfolio companies include Etched, Cognition, Base Power, Vanta, and Neko Health.
01 · Says / Does
| Tag | Says | Does |
|---|---|---|
| Stages | Not stated | Not enough dated deals |
| Sectors | Not stated | Not enough dated deals |
| Regions | Not stated | Not enough dated deals |
Says: what the firm's funds state. Does: from 0 dated deals in the last 24 months.
02 · Fund history
| Fund | Year | Size | Status |
|---|---|---|---|
| Positive Sum Conviction Fund, LP Positive Sum backs founders pursuing their life's work. Its portfolio spans AI, fintech, energy, hardware, biotech, and healthcare technology companies. Inferred from the firm's website and portfolio companies | approx. 2026 | $100M (Form D) | Raising |
| Positive Sum Capital IV, LP Positive Sum backs founders pursuing their life's work. Its portfolio spans AI, fintech, energy, hardware, biotech, and healthcare technology companies. Inferred from the firm's website and portfolio companies | approx. 2026 | $400M (Form D) | Raising |
| Positive Sum EAI Holdings, LLC Positive Sum backs founders pursuing their life's work. Its portfolio spans AI, fintech, energy, hardware, biotech, and healthcare technology companies. Inferred from the firm's website and portfolio companies | 2026 | $42.55M (Form D) | Open, writing first checks |
| Positive Sum SR Holdings, LLC Positive Sum backs founders pursuing their life's work. Its portfolio spans AI, fintech, energy, hardware, biotech, and healthcare technology companies. Inferred from the firm's website and portfolio companies | 2025 | $5.3M (Form D) | Open, writing first checks |
| Positive Sum Capital III, L.P. Positive Sum backs founders pursuing their life's work. Its portfolio spans AI, fintech, energy, hardware, biotech, and healthcare technology companies. Inferred from the firm's website and portfolio companies | 2024 | $184.75M to $400M (Form D) | Open, writing first checks |
| Positive Sum Capital II - AA, L.P. Positive Sum backs founders pursuing their life's work. Its portfolio spans AI, fintech, energy, hardware, biotech, and healthcare technology companies. Inferred from the firm's website and portfolio companies | 2022 | $8.5M to $100M (Form D) | Late investment period |
| Positive Sum Capital II - QP, L.P. Positive Sum backs founders pursuing their life's work. Its portfolio spans AI, fintech, energy, hardware, biotech, and healthcare technology companies. Inferred from the firm's website and portfolio companies | 2022 | $118.52M to $300M (Form D) | Late investment period |
| Positive Sum Capital, L.P. | 2020 | $63.5M to $125M (Form D) | Follow-ons only |
03 · People across funds
- PATRICK O'SHAUGHNESSY, Chief executive officer of general partner.
Positive Sum Conviction Fund, LP (Named on Form D); Positive Sum Capital IV, LP (Named on Form D); Positive Sum Capital III, L.P. (Named on Form D); Positive Sum Capital II - AA, L.P. (Named on Form D); Positive Sum Capital II - QP, L.P. (Named on Form D); Positive Sum Capital, L.P. (Named on Form D)
- Robert Parker, Chief Operating Officer of the Manager of the Issuer
Positive Sum EAI Holdings, LLC (Named on Form D); Positive Sum SR Holdings, LLC (Named on Form D)
- Alison Davis Riddell
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Avidan Rudansky
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Brie Wolfson
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Dom Cooke
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Donald Lee-Brown
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Eric Jasinski
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Gabi Marques
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Jeremy Stern
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Joe Berg
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Joe Parker
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Julia Hitchins
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Patrick O’Shaughnessy
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
- Terran Mott
Positive Sum Conviction Fund, LP (Team); Positive Sum Capital IV, LP (Team); Positive Sum EAI Holdings, LLC (Team); Positive Sum SR Holdings, LLC (Team); Positive Sum Capital III, L.P. (Team); Positive Sum Capital II - AA, L.P. (Team); Positive Sum Capital II - QP, L.P. (Team); Positive Sum Capital, L.P. (Team)
04 · Recent deals
No dated deals found yet.
05 · Latest from the firm
No news from the firm's website yet.
06 · Sources
- https://positivesum.com
- https://positivesum.com/portfolio/
- https://positivesum.com/team/
- https://positivesum.com/
Fund dates and sizes are from SEC Form D filings.
Last verified: Oct 28, 2026