Fundraising Fox
Ineffable Ventures
Venture capitalActively deployingStamford · Pre-Seed–Late Stage · 1 people tracked
Also known as INEFFABLE VENTURES LLC
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Investment thesis
Ineffable Ventures backs founders across the spectrum from early stage to pre-IPO technology companies, prioritizing the talent and capabilities of the founding teams. The firm positions itself as founder-first and emphasizes leveraging a network of entrepreneurs, lawyers, business executives and fund partners to accelerate portfolio companies' time-to-market and connect them with strategic partners.
Source: firm website, verified Oct 27, 2026.
Team · 1 people
from the firm's website
Founder and General Partner of Ineffable Ventures; a former founder whose operating experience shapes his empathetic, hands-on approach as an early-stage investor.
What they invest in
from 26 of 30 portfolio companiesAI & Machine Learning ×16Enterprise Software ×9SaaS ×9Cloud Computing ×5Deep Tech ×5Healthtech ×5Digital Health ×4Hardware ×4
HQs:United States×10Israel×2
Who they back
founder profiles across 13 portfolio companiesFounding team size:solo founder×32 founders×43 founders×34+ founders×3
Where their founders studiedfrom 22 founders with education data
Harvard University ×4Brigham Young University ×2New York University ×2Technical University of Munich ×2University of Toronto ×2
What their founders studiedfrom 21 founders with field-of-study data
Computer Science ×8Engineering ×6Business & Management ×5Economics ×3Mathematics & Statistics ×2
Where their founders worked beforefrom 28 founders with career history
Google ×6NVIDIA ×3Stanford University ×2Tesla ×2Twitter ×2
6 founders hold a PhD (of 25 with degree data)
Investments · 30 tracked
founders shown can be your intro path
Actasys develops ActaJet air-jet cooling technology that provides spot-on thermal management for high-density data center server racks and components such as Network Interface Cards, Data Processing Units, and Switches.
CleantechDeep TechHardware
PartnerJared Kasner· solo GP
Co-investorsNext Gear VenturesQ FundStage 1 VenturesVolvo Cars Tech Fund
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)
PartnerJared Kasner· solo GP
Co-investorsaMoon
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
Pritika Mehta(Founder)inSimarpreet Singh(Founder)in
PartnerJared Kasner· solo GP
Co-investorsGaingelsMana VenturesOrange DAOPioneer
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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
PartnerJared 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)inYossef Daar(Founder)inYael Sandler(Chief Financial Officer)Yossef Daar(Chief Product Officer)Michael Richard Pompeo(Director)Sonny Vu(Director)
PartnerJared Kasner· solo GP
Co-investorsMaccabee VenturesOurCrowdTAU VenturesVulpes 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
PartnerJared 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
PartnerJared Kasner· solo GP
Co-investorsF2 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
Katelyn Strobel(Founder)inJosh Strobel(Founder)in
PartnerJared Kasner· solo GP
Co-investorsGurtin VenturesY CombinatorAgrolimen VenturesGoodwater CapitalNew OrderOasis Capital+4 more
Erebor is a US national bank in Columbus, Ohio serving AI, crypto, defense and advanced manufacturing companies.
Palmer Luckey(Founder)
PartnerJared Kasner· solo GP
Co-investorsAmbush CapitalAndreessen HorowitzAntiArctic DigitalBalerion Space VenturesCastle Island Ventures+24 more
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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
Hannan Happi(Founder)Jack Abraham(Founder)inHannan H.(Founder)inHannan Parvizian(Founder)in
PartnerJared Kasner· solo GP
Co-investorsAndreessen HorowitzAtomicBay Bridge Ventures ClimateBlack FlagBleu CapitalClimate Capital+16 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
PartnerJared Kasner· solo GP
Co-investors14Peaks CapitalBlumberg CapitalBullishClocktower VenturesDifferential VenturesParade Ventures+2 more
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
Gary Wu(Founder)inCésar Maklary(Founder)Peixian Wu(Director and CEO)Peter Francis(Founder)inJason Kichen(Chief Infomation Security Officer)inMalachi Price(Chief Business Officer)
PartnerJared Kasner· solo GP
Co-investors7GC & Co91 VenturesAlso CapitalAntlerBridge VenturesDuke Capital Partners+13 more
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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
Jonathan Ross(Founder)inDouglas Wightman(Founder)
BoardChamath Palihapitiya(Director)in
PartnerJared Kasner· solo GP
Co-investorsAccess Ventures (New York)Acequia Capital (AceCap)Alumni VenturesArctic VenturesAxiom PartnersB Capital+79 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.
AI & Machine LearningCleantechClimate TechDeep TechEnergyHealthtech
PartnerJared Kasner· solo GP
Co-investorsGrove VenturesLevel VenturesTechEnergy VenturesExtantia 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
PartnerJared Kasner· solo GP
Co-investorsJAL 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)Moti Moravia(Co-Founder & CTO)inMaor Farid(Founder)in
PartnerJared Kasner· solo GP
Co-investorsMento vcOurCrowdTwo Lanterns Venture PartnersAndreessen HorowitzFlint CapitalTechAviv 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
Yassine Açoine(Founder)inMatt Biringer(Co-Founder & CEO)
PartnerJared Kasner· solo GP
Co-investorsAlpaca VCCompanyon VenturesCorigin VenturesDragonXExpert DOJOGaingels+9 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
Sam Altman(Founder)inElon Musk(Founder)inGreg Brockman(Founder)inIlya Sutskever(Founder)inWojciech Zaremba(Founder)inJohn Schulman(Founder)
PartnerJared Kasner· solo GP
Co-investors7BC Venture CapitalA-Rod CorpA.Capital VenturesA'Z AngelsAdvent InternationalAliya Capital Partners+101 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
Mike Henry(Founder)inTim Harris(Founder)in
PartnerJared Kasner· solo GP
Co-investorsBanyan VenturesBasis Set VenturesEssentia VenturesKindred VenturesSamsung NextThreshold Ventures+2 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
George Kramb(Founder)inPatrick Frank(Founder)in
PartnerJared Kasner· solo GP
Co-investorsFCA Venture PartnersLionBirdPlug and Play Ventures
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)
PartnerJared Kasner· solo GP
Co-investorsCaruso VenturesDas & Co.DeciensFairhaven 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
Thomas Sohmers(Chairman)inBarrett Woodside(Founder)inEdward Kmett(Founder)inMitesh Agrawal(CEO)in
BoardRobert Reid(Director)
PartnerJared Kasner· solo GP
Co-investorsAloniqAsimov VenturesBanyan VenturesCaucasus VenturesCisco InvestmentsFlume Ventures+17 more
Israeli company developing a novel superconducting quantum processor architecture with an 'architecture-first' approach enabling fault-tolerant, scalable systems for millions of qubits.
PartnerJared Kasner· solo GP
Co-investorsEarth and beyond venturesQ FundQbeat VenturesRhodiumSurround VenturesViola Ventures+3 more
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
PartnerJared Kasner· solo GP
Co-investorsRUNI 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
Jordan Feldman(Founder)inTheodore Feldman(Executive Officer, Director)inJonathan Locker(Director)in
BoardKareem Zaki(Director)inSamir Kaul(Director)inMichael Lynton(Director)
PartnerJared Kasner· solo GP
Co-investorsKhosla VenturesNat TurnerSemperVirens Venture CapitalVine VenturesThrive Capital
Tensordyne builds AI hardware, chips, and software systems optimized for efficient inference at reduced energy and computational cost.
AI & Machine LearningDeep TechHardwareSemiconductorsSunnyvale, US
RK Anand(Co-founder and Chief Product Officer)inGilles Backhus(Co-Founder, VP of AI & Product)inR K Anand(Founder)inMarc Bolitho(CEO)in
PartnerJared Kasner· solo GP
Co-investorsBanyan VenturesBMW i VenturesBosch VenturesCelesta CapitalDns CapitalGaingels+10 more
Timeless is a platform that converts conversations into automated agent actions within team workspaces.
AI & Machine LearningEnterprise SoftwareFuture of Work
Tommy Barav(Founder)in
PartnerJared Kasner· solo GP
Co-investorsFusion VCGaingelsIbex InvestorsMaccabee VenturesResolute Ventures
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
PartnerJared Kasner· solo GP
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Pippin
Exits · 1
1 acquisitionsDotiacq. by Salesforce
Portfolio news
latest coverage across their companies
North · ventureburn.com · Oct 20, 2026
OpenAI · bloomberg.com · Sep 29, 2026
Positron AI · prnewswire.com · Sep 10, 2026
Groq Inc · siliconangle.com · Aug 29, 2026
Erebor Bank · pymnts.com · Aug 10, 2026
Fluidstack · siliconangle.com · Jul 29, 2026
Parasail · finsmes.com · Apr 15, 2026
Exowatt · techcrunch.com · Nov 14, 2025
Frequently asked questions
- How many investments has Ineffable Ventures made?
- Ineffable Ventures has 30 tracked investments, 1 of which have exited, including 2 dated in the last 24 months.
- What stage does Ineffable Ventures invest at?
- Ineffable Ventures invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth, Late Stage stages.
- What sectors does Ineffable Ventures focus on?
- Ineffable Ventures focuses on Sector Agnostic.
- Where is Ineffable Ventures located?
- Ineffable Ventures is headquartered in Stamford, US.
- Who does Ineffable Ventures co-invest with?
- Ineffable Ventures most often shares deals with Gaingels, Banyan Ventures, Mana Ventures, among 140 tracked co-investors.
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