Ineffable Ventures

Breeoot is a concierge preventive medicine practice where a single primary physician manages a patient's complete health picture across multiple specialties, coordinated through a technology platform designed for continuous care rather than episodic visits.

Digital HealthHealthtechLongevityWellness & Fitness

David Reichman(Co-founder)

PartnerJKJared Kasner· solo GP

Co-investorsAMaMoon

Butternut AI is an AI-powered website builder that creates fully functional websites from natural language prompts in under 20 seconds, enabling anyone to build websites without coding.

AI & Machine LearningDeveloper ToolsMarketing TechSaaS

PartnerJKJared Kasner· solo GP

BigBear.ai develops a generative AI platform for knowledge management, compliance automation, and mission-critical operations, with specialized capabilities in modeling, digital twin technology, computer vision, cybersecurity, and predictive intelligence primarily serving government and defense organizations.

AI & Machine LearningCybersecurityDeep TechDefense Tech

PartnerJKJared Kasner· solo GP

Cyabra's Authenticity Analysis product detects fake accounts and AI-generated content in social conversations using proprietary algorithms and behavioral analysis.

AI & Machine LearningCybersecurityEnterprise SoftwareMarketing TechSaaSTel Aviv

Dan Brahmy(Chief Executive Officer)Yael Sandler(Chief Financial Officer)Yossef Daar(Chief Product Officer)Michael Richard Pompeo(Director)Sonny Vu(Director)James Flanagan(Director)

PartnerJKJared Kasner· solo GP

Co-investorsMAMaccabee VenturesOUOurCrowdTATAU VenturesVUVulpes Ventures

Cyvore offers The Eye, a visual threat detection tool that identifies spoofed logos, lookalike phishing pages rendered as images, manipulated screenshots, and deepfaked faces before a user clicks.

AI & Machine LearningCybersecurity

PartnerJKJared Kasner· solo GP

PartnerJKJared Kasner· solo GP

The page describes Slack, a messaging and collaboration platform organized around channels, huddles, and Slack Connect, with AI features (Slackbot, AI-powered search, and summaries) that coordinate work across apps and agents.

Enterprise SoftwareFuture of WorkSaaS

PartnerJKJared Kasner· solo GP

Co-investorsF2F2 Venture Capital

Envelope is a financial application that combines budgeting software with checking account and debit card services, allowing users to organize spending through digital envelopes and manage money in a single platform.

FintechSan Francisco, US

KSKatelyn Strobel(Founder)inJSJosh Strobel(Founder)in

PartnerJKJared Kasner· solo GP

Co-investorsY Y Combinator

Erebor is a US national bank in Columbus, Ohio serving AI, crypto, defense and advanced manufacturing companies.

Palmer Luckey(Founder)

PartnerJKJared Kasner· solo GP

Co-investorsANAntiARArctic DigitalBABalerion Space VenturesCACastle Island VenturesLALakeside CapitalLULux Capital+12 more

Exowatt builds modular clean energy infrastructure systems designed for 24/7 solar power generation, targeting global AI infrastructure and critical industries that require reliable, ultra-low-cost sustainable power.

AI & Machine LearningCleantechEnergyHardwareMiami, US

HHHannan Happi(CEO & Co-Founder)JAJack Abraham(Co-Founder; Atomic CEO)inHHHannan H.(Founder)in

PartnerJKJared Kasner· solo GP

Co-investorsANAndreessen HorowitzATAtomicBABay Bridge Ventures ClimateBLBlack FlagBLBleu CapitalFEFelicis Ventures+8 more

FlowFi operates an invite-only network connecting small business founders with vetted experts (accountants, CFOs, HR leads, tax specialists, and operators) to solve specific business challenges.

B2B MarketplacesEnterprise SoftwareFintechHR TechSaaS

PartnerJKJared Kasner· solo GP

Co-investorsBLBlumberg CapitalCLClocktower VenturesDIDifferential VenturesPAParade VenturesVEVerissimo VenturesBUBullish

Fluidstack develops infrastructure for AI by rapidly deploying compute capacity, enabling delivery of gigawatts of computing power in six months compared to industry standards of 18-24 months, with focus on data center acquisition, design, operation, and supporting major AI infrastructure projects.

AI & Machine LearningCloud ComputingLondon, US

GWGary Wu(Founder & CEO)inCMCésar Maklary(Founder)Peixian Wu(Director and CEO)PFPeter Francis(Founder)inJason Kichen(Chief Infomation Security Officer)inMalachi Price(Chief Business Officer)

PartnerJKJared Kasner· solo GP

Co-investors7G7GC & Co9191 VenturesALAlso CapitalDUDuke Capital PartnersEPEpisode1FOFounders Factory+9 more

Groq designs and manufactures the LPU (Language Processing Unit), a chip purpose-built for AI inference, and operates GroqCloud, a platform for running inference workloads with low latency and cost efficiency across global data centers.

AI & Machine LearningCloud ComputingSemiconductorsPalo Alto, US

JRJonathan Ross(Founder & CEO)inDouglas Wightman(Executive Officer, Director)

BoardCPChamath Palihapitiya(Director)in

PartnerJKJared Kasner· solo GP

Co-investorsACAccess Ventures (New York)ACAcequia Capital (AceCap)ALAlumni VenturesB B CapitalBABasecamp FundBEBeyond Capital+41 more

Lava is a climate-tech startup developing isothermal heat-engine and heat-pump technology, including research into knitted metallic structures, metamaterials, and phase-changing materials, to generate clean power at megawatt scale.

CleantechClimate TechEnergy

PartnerJKJared Kasner· solo GP

Co-investorsGRGrove VenturesTETechEnergy VenturesEXExtantia Capital

Leal Health operates an AI-powered decision support platform that matches cancer patients to personalized treatment options, including clinical trials and FDA-approved treatments, based on their specific diagnosis.

AI & Machine LearningDigital HealthHealthtech

PartnerJKJared Kasner· solo GP

Co-investorsJAJAL Ventures Ltd.

Leo AI is an engineering design co-pilot that uses a proprietary Large Mechanical Model to assist mechanical engineers in product design.

Advanced ManufacturingAI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaS

Maor Farid, PhD(Co-Founder & CEO)MMMoti Moravia(Co-Founder & CTO)in

PartnerJKJared Kasner· solo GP

Co-investorsMEMento vcOUOurCrowdTWTwo Lanterns Venture PartnersANAndreessen HorowitzFLFlint CapitalTETechAviv Founder Partners

North provides cloud cost management software that helps organizations optimize their cloud spending and licensing across public cloud providers.

AI & Machine LearningCloud ComputingEnterprise SoftwareFintechSaaSNew York City, US

YAYassine Açoine(Founder)in

PartnerJKJared Kasner· solo GP

Co-investorsALAlpaca VCCOCompanyon VenturesCOCorigin VenturesDRDragonXEXExpert DOJOOSOSS Capital+2 more

OpenAI is an AI research and deployment company focused on developing artificial general intelligence (AGI) with emphasis on safety and beneficial outcomes for humanity.

AI & Machine LearningCloud ComputingEnterprise SoftwareSan Francisco, US

SASam Altman(Co-founder & CEO)EMElon Musk(Co-founder & former Co-chair / board member)inGBGreg Brockman(Co-founder & President)inISIlya Sutskever(Co-founder & Chief Scientist)inWZWojciech Zaremba(Co-founder)inJSJohn Schulman(Co-founder (departed 2024))

PartnerJKJared Kasner· solo GP

Co-investors7B7BC Venture CapitalA-A-Rod CorpA.A.Capital VenturesA'A'Z AngelsADAdvent InternationalALAlpha Wave Global+70 more

Parasail provides AI inference compute on a flexible fleet that scales with usage, letting companies commit to output (tokens) rather than long-term hardware purchases.

AI & Machine LearningCloud ComputingData & InfrastructureDeep Tech

MHMike Henry(Co-founder)inTHTim Harris(Co-founder)in

PartnerJKJared Kasner· solo GP

Co-investorsBABanyan VenturesBABasis Set VenturesKIKindred VenturesTHThreshold VenturesTOTouring CapitalFLFlume Ventures+1 more

PatientPartner operates a platform that connects patients with trained mentors to improve treatment adherence and engagement, serving pharmaceutical and medical-device companies.

Digital HealthHealthtechSaaS

PartnerJKJared Kasner· solo GP

Co-investorsFCFCA Venture PartnersLILionBird

Pippin Title is a nationwide title search company that combines proprietary technology with a network of ground searchers to deliver residential, commercial, and energy (oil & gas, cell tower, wind turbine, agricultural) title searches.

LegalTechPropTechSaaSNew York City, US

Bharat Das(CEO)

PartnerJKJared Kasner· solo GP

Co-investorsCACaruso VenturesDADas & Co.DEDeciensFAFairhaven Capital Partners

Positron builds purpose-built hardware and inference accelerator silicon for running Transformer-based generative AI models, offering inference appliances that map HuggingFace Transformers models onto the hardware and expose an OpenAI API-compliant endpoint.

AI & Machine LearningHardwareSemiconductorsLovelock, US

TSThomas Sohmers(Executive Officer, Director)inBWBarrett Woodside(Founder)inEKEdward Kmett(Founder)inMAMitesh Agrawal(Executive Officer, Director)in

BoardRobert Reid(Director)

PartnerJKJared Kasner· solo GP

Co-investorsASAsimov VenturesBABanyan VenturesCACaucasus VenturesFLFlume VenturesINInvariantes FundNZNZVC+10 more

Israeli company developing a novel superconducting quantum processor architecture with an 'architecture-first' approach enabling fault-tolerant, scalable systems for millions of qubits.

PartnerJKJared Kasner· solo GP

Co-investorsEAEarth and beyond venturesQBQbeat VenturesVIViola Ventures

RelyOn is a personal safety app designed to connect individuals and families experiencing unsafe situations with professional emergency responders and support services.

Digital HealthEnterprise SoftwareImpact & Social GoodIoTSaaS

PartnerJKJared Kasner· solo GP

Co-investorsRURUNI Ventures

Rightway Healthcare is a pharmacy benefits manager (PBM) built by pharmacists that operates on a transparent, 100% pass-through fee model rather than profiting from rebates.

Enterprise SoftwareHealthtechAlbuquerque, US

JFJordan Feldman(Executive Officer, Director)inTFTheodore Feldman(Executive Officer, Director)inJonathan Locker(Director)

BoardKZKareem Zaki(Director)inSKSamir Kaul(Director)inMichael Lynton(Director)

PartnerJKJared Kasner· solo GP

Co-investorsKHKhosla VenturesSESemperVirens Venture CapitalVIVine VenturesTHThrive Capital

PartnerJKJared Kasner· solo GP

Co-investorsCECelesta CapitalCECelesta CapitalPRPremji InvestXOXoraBMBMW i Ventures

Tensordyne builds AI hardware, chips, and software systems optimized for efficient inference at reduced energy and computational cost.

AI & Machine LearningDeep TechHardwareSunnyvale, US

RARK Anand(Co-founder and Chief Product Officer)inGBGilles Backhus(Co-Founder, VP of AI & Product)inRKR K Anand(Founder)inMBMarc Bolitho(CEO)in

PartnerJKJared Kasner· solo GP

Co-investorsBOBosch VenturesDNDns CapitalGRGreatPoint VenturesLILinden CapitalMAMayfield FundRORobert Bosch Venture Capital+1 more

Timeless is a platform that converts conversations into automated agent actions within team workspaces.

AI & Machine LearningEnterprise SoftwareFuture of Work

TBTommy Barav(Founder)in

PartnerJKJared Kasner· solo GP

Co-investorsFUFusion VCMAMaccabee VenturesREResolute VenturesIBIbex Investors

YesLawyer offers a legal intake service that connects people with attorneys for an initial consultation and a custom legal plan across personal-injury and employment matters, including ADA access, car accidents, unsafe property, medical malpractice, defective products, and workplace claims.

LegalTechMarketplaces

PartnerJKJared Kasner· solo GP