Fundraising FoxRedefine Ventures Llc
Venture capitalBoulder
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Investment thesis
Redefine Ventures seeks to provide access to a small number of extraordinary companies positioned to transform humanity within any given market. Rather than following conventional investment categories, the firm casts a wide net across verticals to capture emerging waves of innovation while maintaining a methodical focus on companies poised for generational impact. It favors markets where winners are not yet defined, companies with clear near-term adjacencies and defensible moats, and exceptional founders running toward the world's toughest problems. The firm emphasizes creative capital structures tailored to companies that can deeply affect society.
Source: firm website, verified Oct 17, 2026.
What they invest in
from 23 of 45 portfolio companiesAI & Machine Learning ×10Hardware ×6Healthtech ×5Deep Tech ×4Digital Health ×4Fintech ×4Cleantech ×3Consumer ×3
HQs:United States×19Canada×1
Who they back
founder profiles across 22 portfolio companiesFounding team size:solo founder×42 founders×43 founders×54+ founders×9
Where their founders studiedfrom 37 founders with education data
Harvard University ×5Stanford University ×4Massachusetts Institute of Technology ×3Brandeis University ×2Columbia Engineering ×2Georgetown ×2University of Toronto ×2
What their founders studiedfrom 38 founders with field-of-study data
Computer Science ×12Economics ×6Engineering ×6Physics ×6Business & Management ×4Mathematics & Statistics ×4Humanities ×2Life Sciences ×2
Where their founders worked beforefrom 45 founders with career history
OpenAI ×10Google ×6Stanford University ×5MF Superfund ×2Microsoft ×2Morgan Stanley ×2
10 founders hold a PhD · 4 hold an MBA (of 39 with degree data)
Investments · 45 tracked
founders shown can be your intro path
Block, formerly Square, runs the Square seller platform, Cash App, Afterpay and TIDAL, plus the TBD and Bitkey bitcoin businesses.
FintechRetail TechSaaSSan Francisco, US
Jack Dorsey(Founder)inJim McKelvey(Founder)inBrian Grassadonia(Executive Officer)Sivan Whiteley(Executive Officer)Amrita Ahuja(Chief Operating Officer and Chief Financial Officer)inMasashi Miyamoto(Founder)
Co-investorsA*Acequia Capital (AceCap)Bling CapitalCota CapitalFirst Round Capitalfirstminute capital+27 more
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Revolutionizing space technology to make life multi-planetary
Hawthorne, US
Elon Musk(Founder)inBret Johnsen(Executive Officer)inGwynne Shotwell(Executive Officer, Director)Tom Mueller(Founder)
BoardAntonio Gracias(Director)inSteve Jurvetson(Director)in
Co-investors1/1 Capital137 Ventures1802 Ventures2080 Ventures3Spoke Capital4DX Ventures+214 more
Akili Interactive develops digital therapeutics that use video game-based interventions to target attentional control deficits in patients with ADHD, delivered through proprietary technology featuring adaptive difficulty algorithms.
AI & Machine LearningDigital HealthGamingHealthtechMedical Devices
Co-investorsDG Daiwa VenturesDG Ventures, Inc.Evidity Health CapitalJAZZ Venture PartnersMachina VenturesRevelation Partners+2 more
Anthropic is an AI safety research company that builds reliable, interpretable, and steerable AI systems.
AI & Machine LearningDeep TechDeveloper ToolsEnterprise SoftwareSan Francisco, US
Dario Amodei(Founder)inDaniela Amodei(Founder)inTom Brown(Founder)inJack Clark(Founder)inJared Kaplan(Founder)inChris Olah(Founder)in
Co-investors3Comma Capital7BC Venture Capital7GC & CoA.Capital VenturesAccelAkka+155 more
Apptronik builds humanoid robots designed to perform repetitive, physically taxing, and dangerous tasks in warehousing and manufacturing environments, aiming to free workers for higher-value activities.
Advanced ManufacturingAI & Machine LearningHardwareRoboticsAustin, US
Jeff Cardenas(Founder)inNicholas Arden Paine(Executive Officer, Director)Luis Sentis(Founder)Nick Paine(Founder)
BoardClarence Gordon Daugherty, IV(Director)Howard Lee Morgan(Director)in
Co-investors1435 CapitalAssembly VenturesAtinum Investment Co. Ltd.B Capital GroupB4 CapitalBaseTwo+39 more
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Astra provides an instant payments API that enables faster fund transfers for trading platforms and financial applications.
FintechSaaSSan Francisco, US
Sam M.(Founder)in
Co-investorsAlumni VenturesChartline Capital PartnersFPVGreat Oaks Venture CapitalJetstreamNight Owl Ventures+3 more
Avails Medical develops the eQUANT™ System, an FDA-cleared diagnostic platform using electronic biosensor technology for rapid antimicrobial susceptibility testing in infectious disease care.
Deep TechDigital HealthHealthtechMedical DevicesMenlo Park, US
Oren Knopfmacher(Executive Officer, Director)in
BoardMichael Laufer(Director)Nancy Isaac(Director)
Co-investorsAstiaOmron Ventures
Base Power provides residential battery systems and retail electric provider services to customers in Texas.
CleantechEnergyHardwareTexas, US
Zach Dell(Founder)inJustin Lopas(Founder)inZach Dell Justin Lopas(Founder)
Co-investors137 VenturesAlign VenturesAndreessen HorowitzAvenir Growth CapitalBond Capital ManagementCapitalG+33 more
Braintrust offers an AI-powered suite for enterprise hiring, assessment, and operations, including a vetted talent marketplace, an AI recruiting and screening tool, and custom AI automation agents.
AI & Machine LearningFuture of WorkHR Tech
Adam Jackson(Founder)inGabe Luna-Ostaseski(Founder)Ankur Goyal(Founder)Brian Flynn(Founder)Gabriel Luna-Ostaseski(Founder)
Co-investorsACME CapitalAusum VenturesCoatue ManagementCoinbase VenturesDanu VenturesFuture Perfect Ventures+12 more
Dapper Labs is a venture studio building products and communities at the intersection of culture and emerging technology, focused on digital ownership, data control, and decentralized platforms for creators and collectors.
ConsumerCreator EconomyCrypto & Web3Sector AgnosticVancouver
Roham Gharegozlou(Founder)inDieter Shirley(Founder)inMikhael Naayem(Founder)inJody Rebak(Executive Officer)inMik Naayem(Founder)
BoardDavid Pakman(Director)in
Co-investorsA.Capital Venturesa16z cryptoAndreessen HorowitzAppWorks VenturesBlockchain CoinvestorsBond Capital Management+46 more
Devoted Health offers Medicare Advantage plans and integrated healthcare services for older Americans, including virtual and in-home care, member support guides, and coordination with local providers across 29 states.
HealthtechInsurTechUnited States, US
Todd Park(Founder)inEd Park(Founder)in
BoardBryan Roberts(Director)inRobert Kocher(Director)inWilliam Frist(Director)inKathleen Sebelius(Director)
Co-investorsAndreessen HorowitzBronze InvestmentsCapital FactoryCox EnterprisesDns CapitalDreamers VC+31 more
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(CEO)inMassimo Andreasi Bassi(CTO)inAlexandra Zatarain(CMO)inAndrea Ballarini(COO)Brian Chen(Advisor)Keith Myers(Recruiting Manager)
Co-investorsAltra VentureAntiAzure Capital PartnersBlue Scorpion InvestmentsCapital B Private HoldingsComcast Ventures+74 more
Ellipsis Health builds Sage, an AI voice agent designed to support healthcare organizations by handling patient interactions and expanding clinical capacity.
AI & Machine LearningDigital HealthHealthtechSan Francisco, US
Mainul Islam(Executive Officer, Director)Mainul Mondal(Founder)inMichael Aratow(Co-Founder & Chief Medical Officer)in
BoardMarie Hurabiell(Director)
Co-investorsAble PartnersAIX VenturesAlumni VenturesAwareness VentureCity LightCVS Health Ventures+10 more
Fireside is a creator platform for live and virtual interactive shows, acquired by Digital Indies to power creator-led media businesses.
Milpitas, US
Falon Macbeth(Executive Officer, Director)Michael Hilberman(Executive Officer)
Co-investorsFirst Check VenturesGaingelsMantis CapitalNB VenturesRed Beard VenturesSLVC+3 more
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Function Health provides routine whole-body lab testing, advanced imaging, and access to top doctors to help individuals achieve preventive health awareness and disease avoidance.
Digital HealthHealthtechWellness & Fitness
Mark Hyman(Founder)inJonathan Swerdlin(Co-founder and CEO)inPranitha Patil(Co-founder and chief business officer)inSeth Weisfeld(Co-founder and chief design officer)inDan Swerdlin(Co-founder and general counsel)inEmi Gal(CEO, Ezra)in
Co-investors1843 Capital53 StationsAble PartnersAgeTech CapitalAglae VenturesAlumni Ventures+38 more
Hodinkee offers insurance for watches and jewelry, underwritten in partnership with insurer Chubb, providing worldwide coverage with no deductible on covered losses.
ConsumerE-commerceFintechInsurTechMedia & Entertainment
Benjamin Clymer(Founder & CEO)in
Co-investorsThe Chernin Group (TCG Crypto)Lowercase Capital
KoBold Metals applies AI and scientific computing to mineral exploration for critical minerals including copper, cobalt, lithium, and nickel needed for electrification and the clean energy economy.
AI & Machine LearningCleantechDeep TechHardwareNew MaterialsBerkeley, US
Kurt House(Founder)inJeff Jurinak to help(Founder)
BoardJosh Goldman(Founder)inJohn Thompson(Director)Connie Chan(Director)inKarl White(Director)in
Co-investorsAndreessen HorowitzBaruch Future VenturesBond Capital ManagementBreakthrough Energy VenturesCleo CapitalClimate Capital+6 more
Lightmatter builds photonic interconnect and compute technologies for AI infrastructure, enabling faster data transfer between processors in large AI clusters.
AI & Machine LearningData & InfrastructureHardwareSemiconductorsMountain View, US
Darius Bunandar(Founder, Chief Scientist)inThomas Graham(Founder, Head of Machine Learning)inNicholas Harris(Founder, CEO)inColin Sturt(Executive Officer)inSimona Jankowski(Executive Officer)Nick Harris(Founder)
Co-investorsAliya Capital PartnersBeaconsfield CapitalEastward Capital PartnersKhosla VenturesMatrixNearingpoint Venture Partners Inc.+7 more
Rain develops autonomous drone systems for detecting and suppressing wildfire ignitions in forest environments.
AI & Machine LearningClimate TechDefense TechRoboticsBritish Columbia, CA
MaxMaxwell Brodie(Founder)inBryan Hatton(Founder)inEphraim Nowak(Founder)EphraimBryan
Co-investorsAzolla VenturesCircle VenturesConvective CapitalDe Fi Alliance HoldingsDERIVE VENTURESHAWKTAIL+3 more
Rain provides real-time financial guidance to employees by monitoring cash flow, analyzing spending patterns, and offering personalized financial advice.
AI & Machine LearningEnterprise SoftwareFintechHR TechSaaSLos Angeles, US
AJ Nelson(Founder)inGilberto Garcia(Co-Founder & CTO)inHR Tech SaaS AJ Nelson(Founder)Jen Terrell(Co-Founder)inAlex Bradford(Founder & CEO)in
Co-investors14Peaks CapitalAurum Venture PartnersBig Brain HoldingsClear Haven Capital ManagementCM VenturesDreamers VC+24 more
Redwood Materials deploys large-scale energy storage systems for data centers and grid power while recycling batteries to recover critical minerals like lithium, nickel, cobalt, and copper as a domestic source of these materials.
Circular EconomyEnergyNew MaterialsCarson City, US
JB Straubel(Founder)inKevin Kassekert(Executive Officer)Jason Thompson(Executive Officer)inJ. B. Straubel(Founder)
BoardDavid Danielson(Director)in
Co-investorsBreakthrough Energy VenturesBright Success CapitalCoatue ManagementCollaborative FundCollective LiquidityCongruent Ventures+26 more
Turntide designs and manufactures electric motors, power electronics, and energy storage systems as modular components for electrification across mobility and other industries.
Advanced ManufacturingCleantechHardwareMobility & TransportationSunnyvale, US
Piyush Desai(Founder)inSteve Hornyak(President & CEO)in
Co-investorsBreakthrough Energy VenturesClimate InvestmentFifth WallBay Bridge Ventures ClimateBMW i VenturesFirst Generation Capital+7 more
Wildtype grows salmon directly from fish cells using cellular agriculture, allowing production of seafood without wild-caught or farmed fish.
BiotechClimate TechFoodTechSan Francisco, US
Justin Kolbeck(Founder)inArye Elfenbein(Founder)inJustin Kolbeck Arye Elfenbein(Founder)
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BoardJohn Melas-Kyriazi(Director)
Co-investorsBay Bridge Ventures ClimateCRV (Charles River Ventures)Maven VenturesMission BiocapitalRoot Ventures Manager, LlcS2G Investments+20 more
x.ai builds frontier AI reasoning models, real-time voice AI, and generative media systems.
AI & Machine LearningDeep TechDeveloper ToolsEnterprise SoftwarePalo Alto, US
Yuhuai (Tony) Wu(Founder)inDennis Mortensen(Executive Officer, Director)Alex Poon(Director)Greg Yang(Founder)inGuodong Zhang(Founder)inIgor Babuschkin(Founder)in
Co-investors7percent VenturesAbstract VenturesAccess Ventures (New York)Aglae VenturesAmity VenturesAndreessen Horowitz+73 more
Xai is a web3 gaming platform that offers incentives, financial support, and infrastructure to game developers building projects on its network.
Crypto & Web3Gaming
Co-investorsAdvaita CapitalAliya Capital PartnersAltoIRA Empire Trust Custodian FBO Abul Jamal Roth IRAApollo Asset ManagementAsymmetricDragon Capital+10 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
8 SleepAndurilChiaChia NetworkCygni LabsDapperEllipses HealthKoBoldLambdaNeloNeuralinkPacasoPacaso HomesReadwood MaterialsRestoration HardwareSpace XTeslaTurntideXiaomiZipline
Exits · 4
2 IPOs · 2 acquisitions · showing 3Portfolio news
latest coverage across their companiesFunction Health · en.wikipedia.org · Sep 12, 2026
Base Power · toflow.ai · Aug 4, 2026
Anthropic · Anthropic Newsroom · Aug 4, 2026
Eight Sleep · techcrunch.com · Mar 4, 2026
Apptronik · finsmes.com · Feb 17, 2026
Redwood Materials · finsmes.com · Jan 30, 2026
xAI · techcrunch.com · Jan 6, 2026
Frequently asked questions
- How many investments has Redefine Ventures Llc made?
- Redefine Ventures Llc has 45 tracked investments, 4 of which have exited.
- What is Redefine Ventures Llc's typical check size?
- Redefine Ventures Llc typically writes checks of $5M – $60M.
- What sectors does Redefine Ventures Llc focus on?
- Redefine Ventures Llc focuses on AI & Machine Learning.
- Where is Redefine Ventures Llc located?
- Redefine Ventures Llc is headquartered in Boulder, US.
- Who does Redefine Ventures Llc co-invest with?
- Redefine Ventures Llc most often shares deals with Khosla Ventures, Andreessen Horowitz, Gaingels, among 324 tracked co-investors.
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