Fundraising Fox
Fourth Realm
Venture capitalActively deployingMenlo Park · Pre-Seed–Series A · 7 people tracked
Find your way into Fourth Realm
Each arrow is one introduction. Sign up to fill in the first one.
Ask Tom Cole to introduce you to Kendrick Kho
You →Tom · together at Hone Capital (formerly CSC Venture Capital) →Kendrick
Ask Jamie Chen to introduce you to Jack Coleman
You →Jamie · together at Avondale Partners →Jack
Sign up to find every way you can get introduced to Fourth Realm
- Your email: who you already know at Fourth Realm, and who your contacts know
- 2nd- and 3rd-degree connections: people you know who worked, studied or invested with the Fourth Realm team
- Your LinkedIn: the connections who can make the intro for you
We rank every route by how warm it is, so you raise on warm intros instead of cold emails.
Investment thesis
Fourth Realm invests in early-stage enterprise and industrial innovation, focusing on technology that advances enterprise and industrial capabilities. The firm seeks mission-driven founders with intense founder-problem-fit, meaning strong alignment between a founder's core skills and the critical needs of their venture. Drawing on collective experience investing in over 300 startups, the partners built Fourth Realm to avoid the rigid pattern-matching and risk-aversion they observed among traditional venture investors, aiming instead to support and capitalize on genuinely innovative startups spanning slow-burn and rapid-breakthrough paths.
Source: firm website, verified Sep 20, 2026.
Team · 7 people
from the firm's website & curated & public directories
What they invest in
from 29 of 41 portfolio companiesSaaS ×13Enterprise Software ×11AI & Machine Learning ×10Future of Work ×5Data & Infrastructure ×4Deep Tech ×4Fintech ×4Healthtech ×4
HQs:United States×21Philippines×1
Who they back
founder profiles across 27 portfolio companiesFounding team size:solo founder×112 founders×123 founders×14+ founders×3
Where their founders studiedfrom 40 founders with education data
Massachusetts Institute of Technology ×5University of California, Berkeley ×3Harvard Business School ×2Harvard University ×2Indian Institute of Technology, Delhi ×2The Wharton School ×2
What their founders studiedfrom 37 founders with field-of-study data
Computer Science ×15Engineering ×10Business & Management ×5Finance & Accounting ×3Humanities ×2Life Sciences ×2Medicine ×2
Where their founders worked beforefrom 39 founders with career history
Google ×7Aifoundation ×2Atrium ×2Chiper ×2Goldman Sachs ×2IBM ×2SpaceX ×2
Accelerator rootsportfolio companies that came through a program
8 founders hold a PhD · 9 hold an MBA (of 40 with degree data)
Investments · 41 tracked
founders shown can be your intro pathBy year:2022 · 22021 · 22018 · 15 dated
Securing the world's data
Palo Alto, US
Bipul Sinha(Co-Founder, Chairman & Chief Executive Officer)inArvind Nithrakashyap(Co-Founder, Chief Technology Officer & Director)inArvind Jain(Co-Founder (former; departed to found Glean))inSoham Mazumdar(Co-Founder (former))inKiran Choudary(Chief Financial Officer)inJesse Green(Chief Revenue Officer)in
Co-investors3Spoke CapitalAccess Ventures (New York)Adit Ventures Management, LlcAnicut CapitalBain Capital VenturesChamaeleon+21 more
Revolutionizing space technology to make life multi-planetary
Hawthorne, US
Elon Musk(Founder, CEO & Chief Engineer)inBret Johnsen(Executive Officer)inGwynne Shotwell(Executive Officer, Director)
BoardAntonio Gracias(Director)inSteve Jurvetson(Director)inDonald Harrison(Director)
Co-investors1/1 Capital137 Ventures2080 Ventures3Spoke Capital4DX Ventures7BC Venture Capital+179 more
Avion School is a coding bootcamp that teaches web development skills to beginners and career-switchers, offering programs in JavaScript and Ruby with job placement support for graduates.
EdTechManila, PH
John Young(Founder)in
Co-investorsY CombinatorAmand VenturesImmeasurableJustin Mateen
Barn2Door provides software and services for farmers to sell their products online and in person, automating orders, payments, inventory, email campaigns, and delivery logistics.
AgTechE-commerceFoodTechSaaSSeattle, US
Janelle Maiocco(Founder)inJAMES MAIOCCO(Executive Officer, Director)
BoardDUNCAN DAVIDSON(Director)inKATHY CHILL(Director)
Co-investorsBullpen CapitalConductor CapitalFf Venture CapitalHearstLabNavigate VenturesSocial Starts+5 more
Colombian B2B e-commerce platform that lets neighborhood corner shops restock inventory online with next-day delivery.
Bogota
Jose Jair Bonilla(Executive Officer, Director)inOscar Sarria(Founder)in
BoardSimon Borrero(Director)
Co-investorsAlter GlobalFEMSA VenturesFJ LabsFlucas VenturesInQlabKube VC+11 more
Team82 is a cybersecurity vulnerability and threat research team that identifies software and firmware vulnerabilities in cyber-physical systems.
AI & Machine LearningCybersecurityIoT
Galina Antova(Founder)inYaniv Vardiin
BoardDavid Millstone(co-CEO of Standard Industries and co-CIO of Standard Investments)
Co-investorsArcher Capital GroupArcher Venture CapitalAster CapitalB CapitalBessemer Venture PartnersBMW i Ventures+17 more
Cohesity provides cyber resilience software that helps organizations identify and protect the minimal critical datasets and systems needed to restart operations after ransomware attacks or disasters.
Cloud ComputingCybersecurityData & InfrastructureEnterprise SoftwareSan Jose, US
Mohit Aron(Founder Emeritus)inSanjay Poonen(CEO and President)inTIMOTHY ROBBINS(Executive Officer)inLORENZO MONTESI(Executive Officer)inROB SALMON(Executive Officer)in
BoardWILLIAM COUGHRAN(Director)in
Co-investors3Spoke CapitalAccelAdit Ventures Management, LlcArtis VenturesBattery VenturesCisco Investments+24 more
Emulate builds Organ-on-a-Chip systems, including platforms, consumables, and pre-assembled BioKits with validated human cell models, to support drug discovery research.
BiotechDeep TechHealthtech
Donald Ingber(Scientific Founder, Board Member, Scientific Advisory Board Chairman)inDaniel Levner(Co-Founder & CTO)inJim Corbett(CEO, Board Member)inLorna Ewart(Chief Scientific Officer)in
Co-investors+ND CapitalNorthpond VenturesAlumni VenturesAlwyn CapitalStray Dog CapitalVegInvest+2 more
Enable Us provides buyer enablement capabilities that allow customers to view tailored content, get answers, and make purchases.
AI & Machine LearningEnterprise SoftwareSaaSSales TechSan Francisco, US
Jinal Jhaveri(CEO & Co-founder)inAdam Pearson(Sales & Co-founder)inAndrey Bolaños(CTO & Co-founder)inGalen Li(CPO & Co-founder)inLynn Pietryga(CCO)
Co-investorsRuna CapitalY CombinatorBessemer Venture PartnersDecent CapitalFresco CapitalGlobal Founders Capital+6 more
Enable Us provides buyer enablement capabilities that allow customers to view tailored content and get answers.
Enterprise SoftwareSaaS
Co-investorsFresco Capital
Enki provides a platform that trains employees on AI and data tools relevant to their workflows, with customized learning plans, personal mentorship, and team collaboration features to drive organizational adoption.
AI & Machine LearningEdTechEnterprise SoftwareFuture of WorkHR TechSaaS
Kirill Makharinsky
Expedock builds dedicated remote outsourcing teams, supported by Operations Managers and QA specialists, that handle back-office workflows such as freight operations, documentation, billing, data annotation, RLHF, model evaluation, and healthcare administration.
AI & Machine LearningFuture of WorkLogistics & Supply Chain
Jeff Tan(Founder)in
Co-investorsDorm RoomFoxmont Capital PartnersInsight PartnersKickstart VenturesPear VCSoma Capital+6 more
Fieldguide provides automated workflows and collaborative tools for assurance and advisory practices to serve clients more effectively.
AI & Machine LearningEnterprise SoftwareFuture of WorkSaaSSan Francisco, US
Jin Chang(CEO & Co-Founder)inChris Szymansky(CTO & Co-Founder)in
Co-investors8VCBessemer Venture PartnersFloodgateGeodesic CapitalPoint72 VenturesY Combinator+8 more
Gr4vy provides a cloud-based payment orchestration platform that enables merchants and payment platforms to manage their payment strategies without coding.
Enterprise SoftwareFintechSaaS
John Lunn(CEO & Founder)inAli Minaei(Co-founder & CTO)inCristiano BettainOlga Tish(CFO)inZubin Vandrevalain
Co-investorsActivant CapitalFirestartrMarch Capital PartnersNycaNyca Partners
Great Expectations provides a data quality and governance platform that enables teams to define, test, and monitor data expectations across their data systems with automation and collaborative tools.
Data & InfrastructureDeveloper ToolsEnterprise Software
Co-investorsCRV (Charles River Ventures)MedMountain VenturesSAV (Scale Asia Ventures)Zero Prime Ventures
Kahoona provides a context generation layer for websites that interprets visitor behavior — a data modality it calls Digital Body Language — to understand and act on anonymous users and AI agents before login or identity exists.
AI & Machine LearningData & InfrastructureMarketing Tech
Alon Ashkenasi(Founder)in
Co-investors91 VenturesCardumen CapitalMonte Carlo CapitalGlobal Founders Capital
Overfit combines human coaching for accountability with AI-generated personalized workout plans for fitness users seeking guidance and customized exercise routines.
AI & Machine LearningHealthtechWellness & FitnessSan Francisco, US
Ajay Saini(Founder)inVahid Fazel-Rezai(Founder)in
Co-investorsY CombinatorHOF CapitalKleiner PerkinsSoma Capital
Pahdo Labs is building an online multiplayer game designed as a persistent, shared virtual world where players create, own, and share content and pursue long-term mastery.
ConsumerGamingMedia & EntertainmentNew York, US
Co-investorsAndreessen HorowitzBoxGroupGlobal Founders Capital2 Punks CapitalScott SunartoBedrock+1 more
Parlor is a domain intelligence service that ranks expired domains by SEO authority, ingesting auction feeds and zone files every six hours and scoring each domain on seven signals to surface a shortlist worth bidding on.
Data & InfrastructureMarketing TechSaaS
Co-investorsFirst Round CapitalLerer HippeauThrive Capital
Perl Street provides financial infrastructure and software for renewable energy investors and developers to manage capital deployment, compliance, and operations related to clean energy projects, particularly those funded through the Greenhouse Gas Reduction Fund.
B2B MarketplacesCleantechClimate TechFintechSaaSAustin, US
Tooraj Arvajeh(Founder)inArvind Vermani(Founder)in
Co-investorsCollaborative FundFJ LabsGarage CapitalImpact Ventures Management Pty LtdKeiki CapitalMS&AD Ventures+8 more
Quadrant Eye develops at-home diagnostic technology to conduct comprehensive eye examinations.
AI & Machine LearningHealthtechMedical DevicesSan Francisco, US
Quinn Wang(Founder)inKristine Hara(Founder)
Co-investorsY CombinatorAmino CapitalConscience VCHarvard Management CompanyKhosla VenturesLombardstreet Ventures+3 more
-2.png)
Quo is a cloud-based business communication platform that provides a modern phone system for small businesses to connect with customers and manage relationships.
Cloud ComputingEnterprise SoftwareFuture of WorkSaaSSan Francisco, US
Mahyar Raissi(Founder/CEO)inDaryna Kulya(Founder)inThomas Andrew DeLong(Executive Officer)Naman Desai(Executive Officer)Todd Goldstein(Director, Promoter)Amit Patel(Executive Officer, Director, Promoter)
Co-investorsY CombinatorChapter OneCraft VenturesGarage CapitalGeneral CatalystKindred Ventures+15 more
.png)
Reality Defender develops an AI platform for detecting deepfakes and synthetic media, serving enterprise organizations to prevent fraud and impersonation.
AI & Machine LearningCybersecurityDefense TechEnterprise SoftwareSaaSNew York City, US
Ben Colman(Co-Founder and CEO)inGaurav Bharaj(Co-founder)inAli Shahriyari(Co-Founder and Advisor)inLars Buttler(Founder)inMilos Fulton(Executive Officer)in
BoardAlexander Ross(Director)in
Co-investorsAmino CapitalArgon VenturesBantam GroupBooz Allen VenturesDCVC (Data Collective)Evolution VC Partners+21 more
Sirona Medical builds RadOS, a cloud-native platform that reimagines radiology practice in the AI age for physicians and radiology practices.
AI & Machine LearningDigital HealthHealthtechSan Francisco, US
Cameron Andrews(Founder & President)inAnkit Goyal(Executive Officer, Director)
BoardFrancisco Gimenez(Director)in
Co-investors8VCGreatPoint VenturesRose Park AdvisorsGlobal Founders CapitalXfund
Stoke Space develops fully reusable rockets for space transportation and mobility services.
Advanced ManufacturingDeep TechHardwareSpace TechSeattle, US
Andy Lapsa(Founder)inTom Feldman(Founder)inKelly Hennig(Executive Officer)in
BoardChristian Garcia(Director)inPhil Harris(Director)inMorgan Beller(Director)in
Co-investorsAcequia Capital (AceCap)AF WPartnersATEL VenturesAurelia FoundryBalerion Space VenturesBeyond Capital+47 more
Stripe provides financial infrastructure for businesses to accept payments, offer financial services, and implement custom revenue models across international markets in 135+ currencies.
Developer ToolsFintechSaaSSan Francisco, US
John Collison(Co-founder & President)inPatrick Collison(Co-founder & CEO)inWilliam Gaybrick(Executive Officer)inGreg Brockman(Founding Engineer, then first CTO)inSarah Heckin
BoardMichael Moritz(Director)in
Co-investors1435 Capital500 GlobalAdvaita CapitalAdventure FundAglae VenturesAir Street Capital+94 more
TalkShop.live is a live shopping platform where users watch live video streams and buy featured products directly during the broadcast, using its patented shoppable embedded point-of-sale technology.
E-commerceMedia & EntertainmentRetail Tech
Bryan Moore(Founder)inTina Moore(Founder)in
Co-investorsFlucas VenturesProgress VenturesSpero Ventures
Text Blaze is a productivity tool that creates text snippets and templates to reduce repetitive typing across web applications.
Developer ToolsEnterprise SoftwareFuture of WorkSaaSSan Francisco, US
Dan Barak(Founder)inScott Fortmann-Roe(Founder)inDan B(Founder)in
Co-investorsY CombinatorBossa InvestFoley VenturesGlobal Founders CapitalParadox CapitalSusa Ventures+1 more
Tilled provides payment facilitation services delivered as a software-as-a-service platform, enabling software companies to embed payment processing capabilities, monitor merchant transactions, and generate revenue from payments across the U.S. and Canada.
Enterprise SoftwareFintechSaaSBoulder, US
Caleb Avery(Executive Officer, Director)inJohn Allen(Executive Officer, Director)in
BoardBen Capell(Director)inRebecca Lynn(Director)inAbhinav Tiwari(Director)John Wallington(Director)in
Co-investorsAbstract VenturesAlumni VenturesBootstrap Venture PartnersCanvas VenturesClocktower VenturesFJ Labs+6 more
Venice, US
Paul Eremenko(Executive Officer, Director)
Co-investorsTrucks VCAirbus VenturesCoatue ManagementGlobal Founders CapitalHAWKTAILMitsubishi HC Capital+4 more
Varda industrializes low Earth orbit by manufacturing pharmaceuticals and other specialized products in space, then returning them to Earth via reusable reentry capsules.
BiotechDeep TechSpace TechEl Segundo, US
Will Bruey(Co-founder)inDelian Asparouhov(Co-founder)in
Co-investorsAlso CapitalCaffeinated CapitalFounders FundGeneral CatalystKhosla VenturesLux Capital+32 more
_imresizer.png)
A Vietnamese-language football streaming site offering live match links, schedules, scores, standings, highlights and sports news for leagues such as the Premier League, Champions League and V-League.
ConsumerMedia & Entertainment
Co-investorsBling CapitalSoma Capital
Zap Energy develops advanced nuclear systems built on a shared platform that combines fission and fusion technologies to deliver firm, carbon-free electricity and process heat in modular, deployable formats.
CleantechDeep TechEnergyEverett, US
Benjamin Conway(Executive Officer, Director)Uri Shumlak(Chief Scientist & Cofounder)inBrian Nelson(Distinguished Technology Fellow & Cofounder)inBenj Conway(President & Cofounder)inZabrina Johal(CEO)in
BoardClay Dumas(Director)in
Co-investorsBreakthrough Energy VenturesDCVC (Data Collective)Energy Impact PartnersLeitmotifLowercarbon CapitalValor Equity Partners+2 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
AerialBodsGreat ExpectationsLaskieNumeradePAKT
Exits · 4
2 IPOs · 2 acquisitions · showing 3RubrikNYSE: RBRKSpaceXNASDAQ: SPCXEnable Usacq. by MindTickle
Portfolio news
latest coverage across their companies
Reality Defender · biometricupdate.com · Sep 11, 2026
Stoke Space · techcrunch.com · Jul 8, 2026
Stripe · techcrunch.com · Feb 24, 2026
Fieldguide · thesaasnews.com · Feb 3, 2026
Claroty · prnewswire.com · Jan 22, 2026
Quo · quo.com · Sep 23, 2025
Cohesity · cohesity.com · Jul 27, 2025
Frequently asked questions
- How many investments has Fourth Realm made?
- Fourth Realm has 41 tracked investments, 4 of which have exited.
- What stage does Fourth Realm invest at?
- Fourth Realm invests at the Pre-Seed, Seed, Series A stages.
- What sectors does Fourth Realm focus on?
- Fourth Realm focuses on Advanced Manufacturing, Deep Tech, Energy, Enterprise Software, Space Tech.
- Where is Fourth Realm located?
- Fourth Realm is headquartered in Menlo Park, US.
- Who does Fourth Realm co-invest with?
- Fourth Realm most often shares deals with Y Combinator, Alumni Ventures, Soma Capital, among 224 tracked co-investors.
Similar investors
Hyderabad Angels is an angel investment network founded in 2010, comprising entrepreneurs, industrialists, and family offices that back early-stage startups across India with capital and mentorship.
Fontinalis Partners is an early-stage venture capital firm that invests in startups working on mobility, industrial innovation, and energy.
DEPO Ventures is an early-stage venture capital fund backing inception and pre-seed technology founders building Europe's critical infrastructure, having evolved from a community of angel investors into a professional VC fund.
The Skolkovo Foundation operates a Russian innovation center that supports technology startups through grants, acceleration programs, infrastructure, and investment, guiding companies from idea to commercialization.
RDF Ventures is a venture capital firm providing active capital to U.S. founders, combining a fund with a platform for portfolio support and a community network.