# Positive Sum: portfolio, investments and team > Positive Sum is a private equity based in United States. 7 investments on record, 5 in the last 12 months, latest Aug 2026. Source: https://millionrounds.com/fund/positive-sum (Millionrounds; every figure on the page links to its filing or article) United States · [Investor](https://millionrounds.com/investors) # Positive Sum Last cheque observed Aug 2026; 7 cheques on record. Email Deploying now New fund $5.3M, Aug 2026 Private equity Seed Series A Series B Venture Capital & Private Equity Follow Positive Sum and see its new cheques in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Ffund%2Fpositive-sum) Deploying now **83%** of best year **5** **cheques in 12 months**, 7 on record Since the last cheque **64** days **00** hrs **00** min **00** sec Median round **$300M** Cheque size, as they say **$100K – $20M** Rounds led **1 of 7** Mostly in **United States, 86%** Pitch Positive Sum ## Positive Sum highlights - 01 5 cheques in the last 12 months - 02 Mostly Series C and Seed: 50% of its rounds - 03 Led 1 rounds ## What they do > We back founders pursuing their life’s work. From their own website - **Type:** Private equity (from a list, unverified) - **Cheque size:** $100K – $20M as they say - **Stages:** Seed Series A Series B - **Sectors:** Venture Capital & Private Equity - **Based in:** New York City, United States - **Cold pitches:** Not accepted ## The record Every round we can evidence, newest first **7 appearances** - **2026** 5 rounds - **Aug** **[Retro](https://millionrounds.com/company/retro)** Series A · US · TechCrunch **$21M** With 8 others - **Aug** **[Etched](https://millionrounds.com/company/etched)** US · TechCrunch **$700M** With 13 others - **Jul** **[Speakeasy](https://millionrounds.com/company/speakeasy)** Seed · US · AlleyWatch **$8.8M** *Led* - **Jul** **[Neko Health](https://millionrounds.com/company/neko-health)** Series C · SE · Steven Bartlett **$700M** With 19 others - **Feb** **[Skyryse](https://millionrounds.com/company/skyryse)** Series C · US · TechCrunch **$300M** With 14 others - **2025** 2 rounds - **Sept** **[ID.me](https://millionrounds.com/company/id-me)** Series E · US · TechStartups **$340M** With 3 others - **May** **[Rogo](https://millionrounds.com/company/rogo)** Series B · US · AlleyWatch **$50M** With 6 others An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor. ## The team Named by the firm itself, on a filing, its Form ADV or its company registration **3 named** PW **Patrick Walker O'Shaughnessy** CEO and Partner of Manager i Filing they signed RP **Robert Parker** Chief Operating Officer of the Manager i Filing they signed SB **Samuel Blake Cates** Managing Director i Form ADV We also hold **6** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them. ## What the register says From the firm's own filings with the SEC, which it must file accurately by law **$820M** gross assets of its funds Oct 2026 **Exempt** reporting adviser venture or small private funds - **Legal name:** Positive SUM Advisors LLC - **SEC number:** CRD 324219 ## What they claim to have backed From their own portfolio page (on their website) **18** of 28 we have independently watched raise [Alpaca](https://millionrounds.com/company/alpaca)[Arc](https://millionrounds.com/company/arc-boats)[Base Power](https://millionrounds.com/company/base-power)[Bending Spoons](https://millionrounds.com/company/bending-spoons)[Blues](https://millionrounds.com/company/blues)[Cognition](https://millionrounds.com/company/cognition-ai)[Eight Sleep](https://millionrounds.com/company/eight-sleep)[Etched](https://millionrounds.com/company/etched)[ID.me](https://millionrounds.com/company/id-me)[Invert](https://millionrounds.com/company/invert)[January](https://millionrounds.com/company/january)[Modal](https://millionrounds.com/company/modal-labs)[Neko Health](https://millionrounds.com/company/neko-health)[Physical Intelligence](https://millionrounds.com/company/physical-intelligence)[Prefect](https://millionrounds.com/company/prefect)[Ridgeline](https://millionrounds.com/company/ridgeline)[Skyryse](https://millionrounds.com/company/skyryse)[Vanta](https://millionrounds.com/company/vanta) Arcana Canopy Casa Colossus Entrepreneurs First Fortell Inheritance Retro Rogo Tegus (acquired by AlphaSense) Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded. New fund on file **$5.3M** raised in Aug 2026 From its SEC filing, not a journalist: a firm that has just raised has money to deploy. ## The cheque Seed Series A Series B Median round joined **$300M** the round, not its cheque Led 1 of 7 rounds **14%** - **Said size:** $100K – $20M - **Sole investor:** Never alone - **Last cheque:** Aug 2026 Rounds by stage said on their site - Series C *2* - Seed said *1* - Series A said *1* - Series B said *1* - Series E *1* Cheques by month Led Joined Nov 2023 Oct 2026 Often in the room with - [BoxGroup](https://millionrounds.com/fund/boxgroup) 2 - [Thrive Capital](https://millionrounds.com/fund/thrive-capital) 2 - [Tiger Global Management](https://millionrounds.com/fund/tiger-global-management) 2 **Pitching Positive Sum?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque. Add to your CRM *→* ## Who they invest alongside The investors most often in the same rounds as Positive Sum. A count of rooms they were both in, not a relationship either has claimed. [**BoxGroup** VC firm **2** rounds together](https://millionrounds.com/fund/boxgroup)[**Thrive Capital** Accelerator **2** rounds together](https://millionrounds.com/fund/thrive-capital)[**Tiger Global Management** VC firm **2** rounds together](https://millionrounds.com/fund/tiger-global-management) ## Recently backed The latest companies Positive Sum put money into. [**Etched** $700M · Aug 2026](https://millionrounds.com/company/etched)[**Neko Health** $700M · Jul 2026](https://millionrounds.com/company/neko-health)[**Skyryse** $300M · Feb 2026](https://millionrounds.com/company/skyryse) ## On podcasts 2 episodes naming Positive Sum in the title, and 4 more that mention it. - [BRAVE Southeast Asia Tech](https://millionrounds.com/podcasts/brave-southeast-asia) 2 Apr 2023 · 40 min Founder & VC “Lost In Translation”, Common Misunderstandings (Rejections, Interrogations & NDAs) and Positive Sum Negotiations & Reference Checks - E262 Mentions [Positive Sum](https://millionrounds.com/fund/positive-sum)[Shiyan Koh](https://millionrounds.com/person/shiyan-koh) Apple PodcastsShow page - [BRAVE Southeast Asia Tech](https://millionrounds.com/podcasts/brave-southeast-asia) 31 May 2021 · 1h 12m Gorick Ng on His Bestselling Book with HBR, The Workplace's Unspoken Rules, and Career Success as Positive Sum - E63 Mentions [Positive Sum](https://millionrounds.com/fund/positive-sum)[Credit Suisse](https://millionrounds.com/fund/credit-suisse)[Ratan Tata](https://millionrounds.com/fund/ratan-tata) *+3* Apple PodcastsShow page ### Mentioned in - [Invest Like the Best](https://millionrounds.com/podcasts/invest-like-the-best) 20 Jan 2026 · 2h 7m Patrick O’Shaughnessy - Creating on Principle - [Invest Like the Best, EP.455] Apple PodcastsShow page - [Sourcery](https://millionrounds.com/podcasts/sourcery) 8 Oct 2025 · 38 min Base Power Raises $1B led by Addition, with Trust Ventures, Valor Equity, Thrive, Lightspeed, a16z, Altimeter, Stepstone, Elad Gil Apple PodcastsShow page - [TBPN](https://millionrounds.com/podcasts/tbpn) 30 Sept 2025 · 3h 10m Sora 2 Launch Reactions, DoorDash CEO Live in The Ultradome | Tony Xu, Simon Eskildsen, Patrick O’Shaughnessy, Zach Abrams, Andrew Feldman, Brandon Millman, Stanley Tang, Alex Albert, Arthur Querou Apple PodcastsShow page - [The a16z Show](https://millionrounds.com/podcasts/a16z) 30 Jun 2025 · 53 min Katherine Boyle: How Tech Can Rebuild America Apple PodcastsShow page ## Quick answers about Positive Sum ### What does Positive Sum invest in? Positive Sum invests most often at Series C and Seed (50% of the rounds on record), in sectors such as Venture Capital & Private Equity. ### How active is Positive Sum? 7 investments on record, 5 of them in the last 12 months, and it led 1. The most recent was in Aug 2026. ### What has Positive Sum invested in recently? Its most recent investments on record: Retro (Series A, Aug 2026), Etched (Undisclosed round, Aug 2026) and Speakeasy (Seed, Jul 2026). ### How big are Positive Sum's cheques? The median round it joins is $300M. It says it writes cheques of $100K to $20M. ### Does Positive Sum lead rounds? Sometimes: it led 1 of its 7 investments on record (14%). ### Where does Positive Sum invest? Most of the companies it backs are in the United States (86%) and Sweden (14%). ### Is Positive Sum investing now? Yes: it is actively investing, with 5 investments in the last 12 months. ### Who does Positive Sum invest alongside? Most often BoxGroup (2 rounds together), Thrive Capital (2 rounds together) and Tiger Global Management (2 rounds together). ## Raising now? Find the investors who back rounds like yours, and keep every conversation on one fundraising board. Find similar investorsOpen your CRM Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=positive-sum) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=positive-sum)