Boston · Pre-Seed–Series A · 19 people tracked
Also known as J2 Ventures Argonne · J2 Ventures Brookhaven · J2 Ventures Strategic
Find your way into J2 Ventures
4,415 people in our graph share verified history with the J2 Ventures team — schools, employers, funds. One of them is your warm intro.
Investment thesis
J2 Ventures takes a disciplined, selective approach to investing, committing only when it understands the product, market, and how it can concretely help founders grow. The firm evaluates each opportunity by asking whether it is genuinely the right partner and proceeds only when mutual success looks likely. It emphasizes close, hands-on relationships with founders, positioning itself as an extension of the founding team and drawing on a team with combined expertise across government, finance, operations, science, health, and technology to help address challenges.
Source: firm website, verified Sep 15, 2026.
Team · 19 people
from the firm's website & curated & public directories
What they invest in
from 35 of 38 portfolio companiesAI & Machine Learning ×15Hardware ×11Deep Tech ×9Defense Tech ×9Enterprise Software ×9SaaS ×9Cybersecurity ×8Healthtech ×7
HQs:United States×18Ireland×1Poland×1
Who they back
founder profiles across 22 portfolio companiesFounding team size:solo founder×72 founders×103 founders×44+ founders×1
Where their founders studiedfrom 27 founders with education data
Harvard Business School ×4Massachusetts Institute of Technology ×3Stanford University Graduate School of Business ×3Columbia University ×2Georgetown ×2Harvard Kennedy School ×2Harvard University ×2Northeastern University ×2
What their founders studiedfrom 29 founders with field-of-study data
Engineering ×12Computer Science ×8Business & Management ×6Economics ×4Humanities ×2Physics ×2Politics & Policy ×2
Where their founders worked beforefrom 29 founders with career history
Apex Technology ×2Bridgewater Associates ×2Cinder Technologies, Inc. ×2Facebook ×2Lawrence Livermore National Laboratory ×2MIT Lincoln Laboratory ×2MUFG ×2Orange Comet, Inc. ×2
2 founders hold a PhD · 7 hold an MBA (of 29 with degree data)
Investments · 38 tracked
founders shown can be your intro pathBy year:2026 · 12023 · 22019 · 12017 · 15 dated
Code Metal builds AI-assisted code translation and modernization tools that use formal verification and program analysis to produce tested, standards-compliant, and portable code.
AI & Machine LearningDeep TechDeveloper ToolsBoston, US
Peter Morales(Co-Founder & CEO)inAlex Showalter-Bucher(Co-Founder & SVP of Technology)inRyan Aytay(President & COO)inLaura Shen(EVP & Head of Growth)inJennifer Paau(SVP of Business Operations & Strategy)Octavian Udrea(Chief Scientist)in
Board seatAlexander Harstrick· per SEC Form D
Co-investorsAccelB Capital GroupB4 CapitalFulcrum VentureSalesforce VenturesSmith Point Capital+3 more
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Aalyria develops software and hardware for managing wireless networks in motion, including directional optical communications terminals and a managed platform for orchestrating satellite, airborne, and terrestrial networks.
Defense TechSpace Tech
Nathan W.(Founder)inRick Young(Founder)in
Co-investorsBattery VenturesCoalitionCortado Ventures
Acalvio provides ShadowPlex, a deception-based security platform that detects reconnaissance, credential misuse, and lateral movement during red and purple team exercises across IT, cloud, and OT environments.
AI & Machine LearningCloud ComputingCybersecurityDefense TechEnterprise SoftwareSilicon Valley, US
Co-investorsAccelPresidio VenturesRho Capital PartnersRho VenturesVertical Venture PartnersPaladin Capital Group
Aether Biomedical develops bionic hands and rehabilitation devices for upper limb amputees using bio-signal processing technology.
BiotechDigital HealthHardwareHealthtechMedical DevicesRoboticsPoznan, PL
Dhruv Agrawal(Founder)in
Co-investorsBrincChiratae VenturesJoyance PartnersStory VenturesSunfish PartnersSunfish Partners
Apex manufactures productized satellite bus platforms at scale for constellation deployment and critical missions.
Advanced ManufacturingDefense TechHardwareSpace TechLos Angeles, US
Ian Cinnamon(Co-Founder & Chief Executive Officer)inMax Benassi(Co-Founder & Chief Technology Officer)in
Co-investorsAndreessen HorowitzBalerion Space VenturesCRV (Charles River Ventures)Embedded VenturesGlynn Capital ManagementKohala Ventures+11 more
Removing execution friction between modern technology companies and the U.S. national security ecosystem
Menlo Park, US
Rachel Olney(Director and Secretary)inPeter Dixon(Director and Chief Executive Officer)inWilliam Treseder(Director, Chief Financial Officer and Treasurer)in
Co-investorsArtis VenturesEvolution VC PartnersForgePoint CapitalTau Ventures
Cinder provides trust and safety infrastructure that uses AI agents to detect and act on abuse, fraud, and policy-violating content such as CSAM, extremism, and adult material across online platforms.
AI & Machine LearningCybersecurityEnterprise SoftwareSaaSNew York City, US
Glen Wise(Founder)inPhil Brennan(Founder)inBrian F(Founder)Declan Cummings(Founder)inPhilip Brennan(Founder)in
Co-investorsAccelMozilla VenturesRadical VenturesWebb Investment NetworkY CombinatorM12 (Microsoft's Venture Fund)+1 more
Druid Software provides mobile broadband communications solutions designed for defence and security operations, leveraging 4G/5G technology and COTS smartphone devices to deliver secure data-centric communications capabilities.
Cloud ComputingDefense TechEnterprise SoftwareIoTSaaS
Empress provides drug discovery teams with an industrialized Perturb-seq platform that combines CRISPR-based single-cell functional genomics, chemoproteomics, and multi-omics with causal machine learning to identify what drives activity, efficacy, and risk.
AI & Machine LearningBiotechDeep Tech
Femtosense (femtoAI) designs AI inference hardware and an embedded AI platform for running large AI models on small, low-power silicon at the edge, targeting consumer electronics and devices such as smart home products and hearing aids.
AI & Machine LearningHardwareSemiconductorsSan Bruno, US
Sam Fok(Executive Officer, Director)inKwabena Boahen(Director)Nick N. Oza(Executive Officer)
BoardShyam Kamadolli(Director)inWen Hsieh(Director)Ingrid Burton(Director)
Co-investorsAmino CapitalFine Structures VenturesGaingelsQuest Venture PartnersSand Hill Angels
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Flashpass provides a white-labeled workforce education platform for trade schools, community colleges, non-profits, and state agencies, helping them secure state workforce funding, launch pre-built microcredential programs in fields like oil & gas, cybersecurity, data, and AI, recruit students, and place graduates with employers.
EdTechFuture of WorkSaaS
Gamebeast provides an AI-powered analytics and intelligence platform for game studios that unifies player behavior, monetization, and sentiment data to help teams understand player engagement and game performance.
AI & Machine LearningGamingSaaS
Christian Meris(Founder)in
Co-investorsFulcrum VentureA16Z SpeedrunAndreessen HorowitzThe Mini Fund
Holly is an AI-powered platform designed for government HR teams to manage job classifications, conduct real-time salary benchmarking, and ensure competitive compensation.
AI & Machine LearningGovTechHR Tech
Brendan HellweginCherie Chungin
Co-investorsRoble VenturesGaingels
iCOUNTER operates CTOS, a platform that maps an organization's third-party vendor ecosystem, detects active adversary targeting, and routes threat intelligence into enterprise risk management, SOC, and GRC workflows.
CybersecurityData & InfrastructureEnterprise SoftwareSaaS
Co-investorsAmerica's Frontier Fund
Kusari builds a software supply chain security platform that maps direct and transitive dependencies from source, prioritizes vulnerabilities by reachability and exploitability, and generates continuous, audit-ready SBOMs.
AI & Machine LearningCybersecurityDeveloper ToolsRidgefield, US
Parth Patel(Executive Officer, Director)inTim Miller(Co-founder & CEO)inMichael Lieberman(Executive Officer, Director)in
Co-investorsGlasswing VenturesUnusual Ventures
LightSource provides an AI-powered operating system that connects engineering, procurement, and suppliers in one platform, handling BOM management, RFQs, bid normalization, tariff exposure analysis, and supplier award decisions.
Advanced ManufacturingAI & Machine LearningSaaSSan Francisco, US
Idan Mintz(Founder)inSpencer Penn(Founder)in
Co-investorsLightspeed Venture PartnersPillar VC
Lumia builds smart earring wearables (Lumia 2) that continuously track over 20 health metrics — including blood flow, sleep stages, readiness, hormonal cycle, and activity — via sensors placed in the ear, paired with a companion app.
Digital HealthHardwareHealthtechWellness & FitnessAllston, US
DANIEL LEE(Executive Officer, Director)inPaul Jin(Executive Officer, Director)in
BoardJONATHAN BRONSON(Director)in
Co-investorsThe Family Fund
Mesa Quantum develops chip-scale quantum sensors — including atomic clocks, gyroscopes, magnetometers, and gravimeters — for industrial and defense applications, with a focus on Alternative Position, Navigation, and Timing (Alt-PNT) as a GPS backup.
Defense TechHardwareQuantum Computing
Wale Lawal(CTO)in
Micron Biomedical develops dissolvable microarray technology for vaccine and therapeutic delivery as an alternative to traditional injections, targeting expanded global access to treatments across all age groups.
BiotechHealthtechMedical Devices
Co-investorsGRA Venture
Musubilabs provides AI-powered content moderation and Trust & Safety systems for online communities that prioritize human oversight, transparency, and real-time learning.
AI & Machine LearningEnterprise SoftwareSaaS
Tom(CEO & Co-founder)Fil(Chief AI Officer & Co-founder)
Co-investorsJuniper Ventures Management, LlcMozilla Ventures
Nametag provides an identity-verification meta-layer that connects user data across an organization's IAM providers, SIEM, ITSM, and HRIS systems.
CybersecurityEnterprise SoftwareSaaS
Aaron Painter(Founder)in
Co-investorsConvergeGlasswing VenturesStrategic Cyber Ventures
Oura Ring is a wearable smart ring that collects and analyzes 50+ personal health metrics to provide insights on sleep, fitness, and wellness for individual users.
HardwareHealthtechWellness & FitnessSan Francisco, US
Ashley Colley(Founder)Virpi Tuomivaara(Founder)inTom Hale(CEO)in
Co-investors125 VenturesA-Rod CorpAble PartnersAlumni VenturesBasecamp FundBold Capital Partners+28 more
Parallel Fluidics builds microfluidic products for life science teams, helping them move from concept to working device for applications like drug discovery and disease diagnostics.
Advanced ManufacturingBiotechDeep TechHardwareBoston, US
Andy Harris(COO)inJoshua Gomes(CEO)
Co-investorsBantam GroupDeep Acre
Paravision develops AI-powered identity verification and authentication tools, including face recognition, liveness detection, deepfake detection, and age estimation products.
AI & Machine LearningCybersecurityDeep Tech
Doug Aley(Chief Executive Officer)in
Co-investorsAtomicCoalitionIcon VenturesPerot JainTransmedia Capital
Phoenix Semiconductor recreates late-generation, legacy, and mature microelectronic components to address the shortage of domestically manufactured legacy chips.
Advanced ManufacturingDeep TechDefense TechHardwareSemiconductorsAustin, US
BoardRyan Hatcher(Executive Officer, Director)inJonathan Bronson(Director)inDidier Thibaud(Director)in
Co-investorsLockheed Martin VenturesCoalitionIronGate Capital Advisors
Principal Mineral develops and commercializes critical materials for AI infrastructure, energy security, and advanced manufacturing through a portfolio of operating companies and process technologies.
AI & Machine LearningDeep TechDefense TechEnergyNew Materials
Ravn provides embedded engineering squads of senior product engineers to help companies accelerate product development and AI implementation.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareGovTechBoston, US
Jake Bullock(Founder)in
Co-investorsSocial StartsY CombinatorRRE Ventures
Redcoat AI provides a cybersecurity platform focused on defending organizations against AI-driven social engineering attacks such as phishing, smishing, and deepfake impersonation.
AI & Machine LearningCybersecurityEnterprise Software
John Whaley(CEO and Co-founder)Kelly Byrd(Co-Founder)Mike Morris(Co-Founder)in
Co-investorsPear VCKyber Knight CapitalLeonis CapitalSancus VenturesTekton VenturesZelda Ventures
Safi Biotherapeutics manufactures adult stem-cell derived human red blood cells (mRBCs) as a cell therapy blood transfusion product, aiming to produce them at industrial scale for civilian and military transfusion needs.
BiotechDeep TechHealthtech
Sealonix develops hemostatic sealants based on proprietary biomaterials to control surgical bleeding, targeting surgeons and patients undergoing abdominopelvic and other surgical procedures.
BiotechMedical DevicesNew MaterialsBedford, US
Amarpreet Sawhney(Executive Officer, Director)Amar Sawhney(Founder)
Co-investorsExcelestar VenturesAmed Ventures
SkyFi operates a platform that provides access to satellite imagery and Earth observation analytics from multiple providers through a single, user-friendly interface with transparent pricing.
Data & InfrastructureDeep TechDefense TechSaaS
Luke Fischer(Founder)in
Co-investorsBalerion Space VenturesBeyond Earth VenturesBuoyant Ventures Management, LlcCapital FactoryIronGate Capital AdvisorsSeraphim Space+3 more
Somnair develops a non-invasive neurostimulation device for treating obstructive sleep apnea that can be used at home.
HardwareHealthtechMedical Devices
Co-investorsHouston Angel Network
Tasso develops diagnostic testing devices and platforms for home use, enabling patients to perform health monitoring and inform clinical decisions outside traditional healthcare settings.
Digital HealthHealthtechMedical DevicesSeattle, US
Ben Casavant(Co-Founder and Chief Executive Officer)inErwin Berthier(Co-Founder and Chief Technology Officer)inAlan Levy(Director)
BoardElizabeth Hambrecht(Director)Paul Conley(Director)in
Co-investorsForesite CapitalOMX VenturesRA CapitalTechstarsVenture Capital Investment ManagementVertical Venture Partners
eWitness is a threat intelligence platform that discovers and retains cybercrime data on encrypted chat networks using crowd-sourced data collection.
CybersecurityData & InfrastructureDefense Tech
Co-investorsPIPELINE CAPITAL PARTNERS
VectorWave builds technology for dynamic spectrum coexistence, using inference on raw radio signals to provide real-time awareness and prioritization across frequencies.
AI & Machine LearningDeep TechHardware
Ben Taylor(Co-founder & CEO)inRonald(Founder & CTO)Charles(Co-founder)
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
ESGPlato
Portfolio news
latest coverage across their companies
Code Metal · news.ssbcrack.com · Aug 14, 2026
Oura · pulse2.com · Jul 17, 2026
Arkenstone Defense · ventureburn.com · Jul 8, 2026
Apex Space · satellitetoday.com · Jun 23, 2026
Aether · markets.businessinsider.com · Jun 18, 2026
Cinder · thesaasnews.com · Jun 3, 2026
Femtosense · infotechlead.com · Apr 13, 2026
Aalyria · tectonicdefense.com · Feb 24, 2026
Frequently asked questions
- How many investments has J2 Ventures made?
- J2 Ventures has 38 tracked investments, including 1 dated in the last 24 months.
- What stage does J2 Ventures invest at?
- J2 Ventures invests at the Pre-Seed, Seed, Series A stages.
- What sectors does J2 Ventures focus on?
- J2 Ventures focuses on Biotech, Consumer, Data & Infrastructure, Deep Tech, Defense Tech, Energy, Enterprise Software, Fintech, Hardware, Healthtech, Medical Devices, New Materials, SaaS.
- Where is J2 Ventures located?
- J2 Ventures is headquartered in Boston, US.
- Does J2 Ventures lead rounds?
- J2 Ventures typically participates in rounds rather than leading them.
- Who does J2 Ventures co-invest with?
- J2 Ventures most often shares deals with Coalition, Accel, Glasswing Ventures, among 100 tracked co-investors.
Media · Podcasts & interviews
featuring the teamFrom the White House to a $700M VC Fund | Christine Keung @ J2 Ventures
Rho · Christine Keung
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