Positive Sum Capital
Venture capitalActively deployingGreenwich · Seed–Series B · 19 people tracked
Also known as Positive Sum Capital AA · Positive Sum Capital QP
Find your way into Positive Sum Capital
3,023 people in our graph share verified history with the Positive Sum Capital team — schools, employers, funds. One of them is your warm intro.
Investment thesis
Positive Sum backs founders who are pursuing their life's work, partnering with entrepreneurs building ambitious, category-defining companies. The firm's public portfolio spans a broad set of technology sectors including AI, energy, defense/aerospace, developer tools, fintech, and enterprise software, suggesting a generalist approach oriented around exceptional founders rather than a single vertical.
Source: firm website, verified Aug 3, 2026.
Team · 19 people
from the firm's website & curated & public directories
Founder mafia
3 people who came through Positive Sum Capital went on to found or lead other companies.
What they invest in
from 11 of 29 portfolio companiesAI & Machine Learning ×7Consumer ×3Hardware ×3Data & Infrastructure ×2Deep Tech ×2Enterprise Software ×2Fintech ×2Wellness & Fitness ×2
HQs:United States×8Italy×1
Who they back
founder profiles across 9 portfolio companiesFounding team size:solo founder×22 founders×23 founders×24+ founders×3
Where their founders studiedfrom 22 founders with education data
DTU - Technical University of Denmark ×4Harvard University ×3Università degli Studi di Padova ×3Brown University ×2Princeton University ×2University of Southern California ×2
What their founders studiedfrom 20 founders with field-of-study data
Computer Science ×9Engineering ×7Economics ×4Mathematics & Statistics ×3Humanities ×2
Where their founders worked beforefrom 23 founders with career history
AlphaSense ×2Bancroft Capital Partners ×2DeepMind ×2DTU Fotonik ×2Evertale ×2
4 founders hold a PhD (of 22 with degree data)
Investments · 29 tracked
founders shown can be your intro pathBy year:2025 · 22024 · 12022 · 12021 · 37 dated
Bending Spoons acquires established digital products—including Vimeo, Evernote, WeTransfer, Meetup, and Brightcove—to own and operate them long-term, developing new features and AI capabilities across them.
AI & Machine LearningConsumerSaaSMilan (Mi), IT
Luca Ferrari(Executive Officer, Director)inLuca Querella(Director)inMatteo Danieli(Director)inFrancesco Patarnello(Vice President and Executive Director)inTomasz Greber(Co-Founder)inDavide Giorgio Andrea Scarpazza(Executive Director and Chief Financial Officer)
Co-investorsEndeavor CatalystHighland EuropeKearny JacksonNimble PartnersSocium Ventures
Base Power provides residential battery systems and retail electric provider services to customers in Texas.
CleantechEnergyHardwareTexas, US
Zach Dell(CEO)inJustin Lopas(Co-founder)in
Co-investors137 VenturesAndreessen HorowitzAvenir Growth CapitalCapitalGCongruent VenturesContrary+23 more
Cubby is an AI teaching assistant for law students that trains on a specific professor's teaching, testing, and grading style using uploaded course materials to generate briefs, quizzes, and practice exams with rubric-based feedback.
AI & Machine LearningEdTechLegalTech
Truman Sacks(Founder)in
Co-investorsLudlow Ventures
Eight Sleep manufactures a smart bed system called the Pod that provides personalized temperature control, elevation adjustment, and integrated sound for sleep optimization.
ConsumerHardwareIoTWellness & FitnessNew York City, US
Matteo Franceschetti(Founder/CEO)inMassimo Andreasi Bassi(Founder/CTO)inAlexandra Zatarain(Founder/CMO)in
BoardNG YiPin(Director)
Co-investorsAltra VentureAntiAzure Capital PartnersBlue Scorpion InvestmentsComcast VenturesCota Capital+29 more
Etched designs custom inference chips, racks, and software co-designed for running frontier AI models, including large sparse mixture-of-experts models, long-context, and agentic workloads.
AI & Machine LearningHardwareSemiconductorsSan Jose, US
Gavin Uberti(Co-Founder & CEO)inRobert Wachen(Co-Founder & President)Chris Zhu(Co-Founder)in
Co-investorsAntiAZURO CAPITAL VENTURESBain Capital VenturesBeyond CapitalConversion CapitalCopper Sky Capital+19 more
HumanCo invests in and incubates mission-driven consumer companies in categories such as food and beverage, beauty, personal care, household products, and consumer health technology, focusing on better-for-you products that help people live healthier lives.
ConsumerFoodTechImpact & Social GoodWellness & Fitness
Jason H. Karp(Founder & CEO)in
Co-investorsJAZZ Venture PartnersPLUS CapitalPoint King CapitalUpper908VCBullish+2 more
Manufactured (MFD) is an end-to-end manufacturing, financing and distribution platform that helps brands source and fund inventory.
Co-investorsAmplify.LABullpen CapitalEvolution VenturesMS&AD VenturesResolute VenturesAnnox Capital+3 more
Physical Intelligence develops generalist AI models for robotics that can control any robot to perform various tasks through learning algorithms and multi-robot training.
AI & Machine LearningDeep TechRoboticsSan Francisco, US
Sergey Levine(Founder)Adnan Esmail(Founder)inBrian Ichter(Founder)inKarol Hausman(Founder)inLachy Groom(Founder)inQuan Vuong(Founder)in
Co-investorsCapitalGKhosla VenturesLux CapitalRedpoint VenturesSequoia CapitalThrive Capital+24 more
Prefect builds intelligent workflow orchestration infrastructure that manages mission-critical automated workflows for teams balancing flexibility with reliability.
AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareWashington, US
Jeremiah Lowin(Executive Officer, Director)in
BoardPatrick W. OShaughnessy(Director)
Co-investorsBessemer Venture PartnersGreen Meadow VenturesRachel Zoe VenturesChemistryTiger Global Management
Rogo offers a secure AI platform for financial firms that automates workflows across research, analysis, and reporting, using custom-trained language models built for finance.
AI & Machine LearningEnterprise SoftwareFintechNew York, US
Gabriel Stengel(Founder)inJohn Willett(Founder)inTumas Rackaitis(Founder)inTumas R.(Founder)in
Co-investors137 VenturesAlleyCorpKleiner PerkinsMantis CapitalScOp Venture CapitalSequoia Capital+5 more
Skyryse develops SkyOS, a flight-control operating system that simplifies aircraft operation through automated maneuvers, emergency management, and optionally piloted or autonomous flight.
Deep TechDefense TechMobility & TransportationEl Segundo, US
Mark Groden(Founder & CEO)inStephen Koo(Executive Officer, Director)inBlake Bilstad(Executive Officer)in
BoardLior Susan(Director)inWill Summerlin(Director)Ethan Batraski(Director)in
Co-investorsCantos VenturesCity LightDas & Co.Embedded VenturesFlucas VenturesFontinalis Partners+18 more
Tegus provided expert call transcripts and financial models for investment research; the service is now integrated into AlphaSense, an AI platform for analyzing expert interviews, financial data, broker research, and market intelligence to support investment decision-making.
AI & Machine LearningData & InfrastructureFintechChicago, US
Thomas Elnick(Executive Officer, Director)inMichael Elnick(Director)inAlex Wolf(Director)
Co-investorsAdvance Venture PartnersVanedge Capital Limited PartnershipWilloughby Capital
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
AlpacaArcanaBluesCanopyCasaCognitionEntrepreneurs FirstFortellInvertJanuaryModalPassthroughRetroRidgelineStoryboardVantaWitan Labs
Exits · 1
1 IPOsBending SpoonsNASDAQ: BSP
Portfolio news
latest coverage across their companies
Bending Spoons · techcrunch.com · Sep 10, 2026
Etched · reuters.com · Aug 18, 2026
Base Power · toflow.ai · Aug 4, 2026
Rogo · fortune.com · Jul 15, 2026
Physical Intelligence · newmarketpitch.com · Jul 13, 2026
Skyryse · techcrunch.com · Jul 5, 2026
Eight Sleep · news.crunchbase.com · Mar 4, 2026
Manufactured · nationaltoday.com · Feb 11, 2026
Frequently asked questions
- How many investments has Positive Sum Capital made?
- Positive Sum Capital has 29 tracked investments, 1 of which have exited, including 2 dated in the last 24 months.
- What stage does Positive Sum Capital invest at?
- Positive Sum Capital invests at the Seed, Series A, Series B stages.
- What is Positive Sum Capital's typical check size?
- Positive Sum Capital typically writes checks of $5M.
- What sectors does Positive Sum Capital focus on?
- Positive Sum Capital focuses on Sector Agnostic.
- Where is Positive Sum Capital located?
- Positive Sum Capital is headquartered in Greenwich, US.
- Who does Positive Sum Capital co-invest with?
- Positive Sum Capital most often shares deals with 137 Ventures, Anti, Khosla Ventures, among 117 tracked co-investors.
Co-investors · 24
Anti Fund is an early-stage-to-growth venture firm that backs technical, anti-consensus founders and pairs technical judgment with distribution and attention to help companies define new market categories.
Valor Equity Partners is a private investment firm focused on operational growth, investing in technology and technology-enabled companies that innovate and disrupt existing industries.
Ludlow Ventures is an early-stage venture capital firm founded in 2010, known for a people-first investment approach centered on building close relationships with founders.
Todd and Rahul's Angel Fund is an early-stage investment vehicle run by founders Todd Goldberg and Rahul Vohra, who write $300k-$500k checks into early-stage startups and help with product/market fit, go-to-market, and future fundraising.
Vibe Capital is a $10M venture fund investing in Web3, AI, and Deep Science startups at the pre-seed and seed stage.
MS&AD Ventures is the corporate venture arm that invests in early-stage companies, partnering with entrepreneurs to build innovative solutions across insurance-adjacent and technology sectors.
Trust Fund is an early-stage venture capital fund focused on consumer businesses that improve work and personal lives across sectors including healthcare, fintech, CPG, marketplaces, logistics, and sustainability.
Atreides Management, LP is an investment firm that applies a crossover strategy, investing in technology and consumer companies across both public and private markets with a long-term perspective.
Greylock Partners is an early-stage venture capital firm that partners with founders building companies from inception. Its partners make only one or two new investments per year to focus deeply on each partnership.
Paradigm is a frontier technology investment firm that builds and invests in early-stage companies across crypto, AI, robotics, and other emerging technology areas.
Banana Capital is Turner Novak's early-stage venture capital firm, run as a one-person operation investing up to $250k as a first or lead investor.
▶12 more co-investors
Hustle FundUnusual VenturesStandard CapitalAIX VenturesBrainchild HoldingsShrug CapitalBasementAthletico VenturesProton EnterprisesWilshire Lane CapitalThe Family FundYork IE
Firms observed investing alongside Positive Sum Capital, from public investor directories. Shared companies are the overlap with Positive Sum Capital's recorded portfolio.
Similar investors
83North is a global venture capital firm that invests in and helps entrepreneurs build large, category-defining companies, backing startups across multiple stages and sectors.
8VC is a venture capital firm investing across logistics, life sciences, healthcare, IT infrastructure, and government/defense, guided by its Smart Enterprise thesis focused on data integration and platform network effects.
Accel is a venture capital firm that partners with exceptional teams, positioning itself as a first partner to founders globally.
AirTree Ventures runs Pathfinders, a free four-week in-person program in Sydney for young builders (high-school graduates up to age 23) to work on a real product, access the AirTree team and founders, and build a peer network.
Andreessen Horowitz (a16z) is a venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz, known for pioneering the platform model with a large team of operators supporting founders across stages.