# POSITIVE SUM ADVISORS LLC

POSITIVE SUM ADVISORS LLC of GREENWICH, CT is an SEC exempt reporting adviser.

## Registration

- CRD: 324219
- Type: SEC exempt reporting adviser
- SEC file number: 802-127156
- Location: 47 ARCH STREET, GREENWICH, CT, 06830-6512
- Phone: 203-208-8365
- Latest filing: 2026-03-27

## Officers, owners & control persons (6)

| Name | Role | Location |
| --- | --- | --- |
| [Robert Joseph Parker](https://search.stillhousedata.com/person/298964) | CHIEF OPERATING OFFICER | MOUNTAIN VIEW, CA |
| [Patrick Walker O'Shaughnessy](https://search.stillhousedata.com/person/671578) | CHIEF EXECUTIVE OFFICER; CHIEF EXECUTIVE OFFICER; MEMBER | — |
| [Samuel Blake Cates](https://search.stillhousedata.com/person/726102) | MANAGING DIRECTOR; MANAGING DIRECTOR; MEMBER | — |
| [O'SHAUGHNESSY PATRICK WALKER](https://search.stillhousedata.com/person/824134) | CHIEF EXECUTIVE OFFICER | — |
| [CATES SAMUEL BLAKE](https://search.stillhousedata.com/person/904485) | MANAGING DIRECTOR | — |
| [Alison Davis Riddell](https://search.stillhousedata.com/person/1022716) | PRESIDENT | — |


## Private funds (5)

| Fund | Type | Formed | Owners | GAV | Min investment |
| --- | --- | --- | --- | --- | --- |
| POSITIVE SUM CAPITAL II - QP LP | Venture Capital Fund | Delaware | 35 | $381.3M | $3.0M |
| POSITIVE SUM CAPITAL III, L.P. | Venture Capital Fund | Delaware | 12 | $267.5M | $5.0M |
| POSITIVE SUM CAPITAL, L.P. | Venture Capital Fund | Delaware | 47 | $146.7M | $50K |
| POSITIVE SUM CAPITAL II - AA, L.P. | Venture Capital Fund | Delaware | 13 | $19.4M | $3.0M |
| POSITIVE SUM SR HOLDINGS, LLC | Venture Capital Fund | Delaware | 1 | $5.5M | — |


## Fund service providers (2)

- administrator: CARTA, INC. — 4 funds
- administrator: HANOVER TECHNOLOGIES, INC.

## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/324219/brochure
- Similar advisers: https://search.stillhousedata.com/firm/324219/similar
- Related entities: https://search.stillhousedata.com/firm/324219/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/324219

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Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.