Fundraising Fox
Positive Sum Capital
Venture capitalActively deployingGreenwich · Seed–Series B · 18 people tracked
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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 · 18 people
from the firm's website & curated & public directories
Founder mafia
The Positive Sum Capital mafia →6 people who came through Positive Sum Capital went on to found or lead other companies.
What they invest in
from 23 of 30 portfolio companiesAI & Machine Learning ×13Enterprise Software ×7Fintech ×7SaaS ×7Consumer ×5Data & Infrastructure ×5Deep Tech ×3Developer Tools ×3
HQs:United States×18United Kingdom×1Italy×1
Who they back
founder profiles across 10 portfolio companiesFounding team size:solo founder×22 founders×33 founders×24+ founders×3
Where their founders studiedfrom 24 founders with education data
DTU - Technical University of Denmark ×3Harvard University ×3Brown University ×2Princeton University ×2Università degli Studi di Padova ×2University of Southern California ×2
What their founders studiedfrom 20 founders with field-of-study data
Computer Science ×9Engineering ×6Economics ×4Mathematics & Statistics ×3Humanities ×2
Where their founders worked beforefrom 25 founders with career history
Google ×4AlphaSense ×2Anduril ×2Bancroft Capital Partners ×2DTU Fotonik ×2Evertale ×2McKinsey & Company ×2Microsoft ×2
5 founders hold a PhD (of 24 with degree data)
Investments · 30 tracked
founders shown can be your intro pathBy year:2025 · 22024 · 22022 · 12021 · 38 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
Alpaca provides brokerage infrastructure APIs that enable fintechs and financial institutions to build investing applications and platforms with access to stocks, options, crypto, and other asset types.
Data & InfrastructureDeveloper ToolsFintechSaaSSan Francisco, US
Yoshi Yokokawa(Co-Founder & CEO)inHitoshi Harada(Co-Founder & CPO)inKaren Borchert(Executive Officer, Director)in
BoardBen Jackson(Director)Eddie Branchaud(Director)
Co-investorsAbstract VenturesBreakpoint CapitalDiagramElefundEndeavor CatalystHorizons Ventures+21 more
Arcana provides fundamental and statistical factor models with portfolio analytics for equity investors, offering single-stock and portfolio-level factor decomposition, crowding and ownership data, risk attribution, and constraint-based portfolio optimization.
Data & InfrastructureFintechSaaSNew York, US
Rich Falk-Wallace(Founder)inSiva Sooriyan(Founder)in
Co-investorsAbstract VenturesSoma CapitalArcanum CapitalAU21 CapitalBuilders TribeDigital Currency Group+5 more
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 VenturesAlign VenturesAndreessen HorowitzAvenir Growth CapitalBond Capital ManagementCapitalG+26 more
Bottomless operates a coffee subscription service powered by an IoT scale that automatically reorders coffee based on consumption patterns.
ConsumerE-commerceFoodTechIoTMarketplacesSeattle, US
Liana Herrera(Founder)inMichael Mayer(Founder)in
Co-investorsFJ LabsPioneerY CombinatorBragiel BrothersCraft VenturesGelt VC+6 more
Casa provides self-custody solutions for bitcoin and stablecoins, offering multi-signature security infrastructure for both individual and institutional users.
Crypto & Web3Fintech
Nick Neuman(Founder & CEO)in
Co-investorsAcrew CapitalBlockchain CoinvestorsChampion Hill VenturesCoinbase VenturesF-Prime CapitalFabric Ventures+10 more
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Cognition develops Devin, an autonomous AI software engineer agent that plans, writes, tests, and deploys production code within existing development environments to augment human engineering teams.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareSan Francisco, US
Scott Wu(Co-founder & CEO)inWalden Yan(Founder)inSteven Hao(Founder)in
Co-investors137 Ventures20VC8VCAbstract VenturesAlpha Wave GlobalAndreessen Horowitz+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 VenturesBienville CapitalFractal SoftwareThird Prime
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+68 more
Entrepreneurs First is an accelerator and founder community that identifies and supports talented individuals from academic institutions and tech communities globally to become founders.
CleantechClimate TechDeep TechFuture of WorkLondon, GB
Matt Clifford(Cofounder and Chair)inAlice Bentinck(Cofounder and CEO)in
BoardReid Hoffman(Board Member)inGreg Lawton(Board Member)in
Co-investorsAcequia Capital (AceCap)Charlie SonghurstElad GilEnterprise Capital FundsFirestartrGreylock Partners+14 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)inMark Ross(CTO)inBrian Loiler(VP of Platform)inWayne Cao(VP of Production)in
Co-investorsThiel CapitalAntiAZURO CAPITAL VENTURESBain Capital VenturesBeyond CapitalConversion Capital+26 more
Fortell develops AI-powered hearing technology aimed at improving speech clarity and comprehension for people with hearing difficulties.
AI & Machine LearningDigital HealthHealthtechMedical DevicesNew York, US
Andrew Casper(Founder)inCole Morris(Co-founder)inMatt(Co-founder)Igor(Co-founder)Andy(Co-founder)
Co-investorsFounders FundOptum VenturesThrive Capital
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-investorsBullishCollaborative FundFJ LabsJAZZ Venture PartnersPLUS CapitalPoint King Capital+6 more
Invert provides infrastructure and intelligence software that connects bioprocess equipment and data sources for pharmaceutical and biologics companies, enabling faster process development and manufacturing through integrated data platforms and digital twin capabilities.
AI & Machine LearningBiotechData & InfrastructureEnterprise SoftwareHealthtechSan Francisco, US
Martin T. Permin(Founder)inHolger Thorup(Founder)inSam Cates(Director)
BoardChristian Tang-Jespersen(Director)in
Co-investorsACME CapitalCathexis VenturesGiant Ventures Global LlpY CombinatorTechNexus Venture Collaborative
January builds an AI-driven debt collections and recovery platform that consolidates fragmented data, automates most consumer interactions, and enforces compliance rules automatically.
AI & Machine LearningFintechHealthtechSaaSMenlo Park, US
Jake Cahan(Founder)inNoosheen Hashemi(Executive Officer, Director)
Co-investorsBrewer Lane VenturesFJ LabsReciprocal VenturesThird PrimeUpper90
Manufactured (MFD) is an end-to-end manufacturing, financing and distribution platform that helps brands source and fund inventory.
Pranay Srinivasan(Founder & CEO)
Co-investorsAmplify.LABullpen CapitalEvolution VenturesGotham Gal VenturesMS&AD VenturesResolute Ventures+5 more
Passthrough builds software that automates the fund subscription, onboarding, and investor relations workflows for investment managers, handling sensitive investor data and paperwork.
Enterprise SoftwareFintechLegalTechSaaSNew York, US
Timothy Flannery(Executive Officer, Director)Benjamin Doran(Executive Officer, Director)inSamuel Cates(Director)Alexandre LaPlante(Executive Officer)
Co-investorsGreat Oaks Venture CapitalMotley Fool VenturesCompany VenturesHustle FundOkta VenturesWilshire Lane Capital
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+29 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 VenturesValor Equity PartnersChemistryTiger 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 VenturesAlleyCorpBoxGroupKleiner PerkinsMantis CapitalScOp Venture Capital+9 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 VenturesFOG Ventures+21 more
Storyboard provides AI-powered fleet operations software that automates back-office tasks for trucking companies through a voice-first, hands-free system.
AI & Machine LearningConsumerEnterprise SoftwareFuture of WorkLogistics & Supply ChainSaaSSocialSan Francisco, US
Sébastien Sikorski(Founder)in
Co-investorsCRV (Charles River Ventures)Y CombinatorBungalow Capital
AlphaSense provides an AI-powered research platform that combines expert interview transcripts, financial models, and broker research to help investment professionals conduct faster analysis and due diligence.
AI & Machine LearningData & InfrastructureFintechChicago, US
Michael Elnick(Director)inThomas Elnick(Founder)inAlex Wolf(Director)
Co-investorsAdvance Venture PartnersVanedge CapitalVanedge Capital Limited PartnershipWilloughby Capital
Vanta provides a security and compliance platform that helps companies improve their security posture and demonstrate compliance to auditors.
AI & Machine LearningCybersecurityEnterprise SoftwareSaaSSan Francisco, US
Christina Cacioppo(Founder/CEO)inBrittany Rose(Executive Officer)
BoardAndrew Reed(Director)inJ Zachary Stein(Director)in
Co-investorsAcrew CapitalAtlassian VenturesBeyond CapitalBonfire VenturesCraft VenturesFPV+23 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
BluesCanopyModalRetroRidgelineWitan Labs
Exits · 1
1 IPOsBending SpoonsNASDAQ: BSP
Portfolio news
latest coverage across their companies
Fortell · techcrunch.com · Sep 16, 2026
Bending Spoons · eu-startups.com · Sep 10, 2026
Etched · techcrunch.com · Aug 18, 2026
Base Power · finsmes.com · Aug 4, 2026
Alpaca · finsmes.com · Jul 16, 2026
Cognition AI · finsmes.com · May 28, 2026
Eight Sleep · techcrunch.com · Mar 4, 2026
Skyryse · techcrunch.com · Feb 3, 2026
Frequently asked questions
- How many investments has Positive Sum Capital made?
- Positive Sum Capital has 30 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 144 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 is a private investment firm focused on operational growth, investing in technology and technology-enabled companies that innovate and disrupt existing industries.
Hustle Fund is an early-stage venture capital firm that invests quickly in startups, offering capital along with educational programs and mentorship. It also runs an angel investing community that lets members invest alongside the fund.
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.
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.
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.
Unusual Ventures is a venture capital firm focused on early-stage enterprise founders, supporting them from initial insight through to market leadership with a proprietary product-market fit playbook.
MS&AD Ventures is the corporate venture arm backed by MS&AD Insurance Group Holdings, investing in early-stage technology companies across insurtech, fintech, digital health, AI and related sectors.
Shrug Capital started as a viral joke tweet that became a $3M venture fund, blending elite Silicon Valley investors with celebrities like Tony Hawk and The Chainsmokers to create an unusually strong bridge between tech and entertainment culture. The fund backs companies with "effortless sharing" potential that are culturally resonant enough to explain enthusiastically to non-tech friends, while the partners act as obsessive fans who tattoo portfolio logos and turn their personal lives into marketing campaigns for their companies.
▶12 more co-investors
Trust FundWilshire Lane CapitalC2 InvestmentsParadigmBanana CapitalStandard CapitalAIX VenturesBasementAthletico VenturesProton EnterprisesThe 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.
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