F4 FundFund
TeamPortfolioRaiseChampionsEssays
Sign in
Back to firm page

Portfolio

J2 Ventures

A closer look at the companies associated with this firm. Verified team members can update the portfolio after signing in.

Portfolio

J2 Ventures portfolio

This is the portfolio currently shown on the public firm page.

37 activeBack to firm page
AalyriaListed
aalyria.comenterprise_software

Aalyria provides resilient, high-throughput networks for commercial and government use, featuring a Spacetime Fabric for network interconnection.

AcalvioListed
No domain yetsecurity_cyber

Acalvio is a leader in cyber deception technology, providing enterprises with advanced solutions to actively defend against sophisticated security threats. Their Active Defense Pl…

Aether BiomedicalListed
aetherbiomedical.combiotech_life_sciences

Aether Biomedical brings precision engineering and biosignal intelligence to prosthetic rehabilitation. Our Zeus bionic hand and digital platform restore capability and confidence…

Apex SpaceListed
apexspace.comaerospace_defense

Apex is focused on redefining how satellites are designed and manufactured, enabling rapid deployment of critical constellations through productized and mass-produced satellite bu…

Arkenstone DefenseListed
arkenstonedefense.comenterprise_software

Arkenstone Defense provides infrastructure solutions for modern technology companies to navigate federal contracting, compliance, and operational efficiency in the national securi…

CinderListed
cinder.aisecurity_cyber

Cinder is mission-critical infrastructure that protects platforms from abuse, fraud, and manipulation using AI-powered agents.

Code MetalListed
codemetal.aienterprise_software

Code Metal is solving real problems with provable AI, focusing on verifiable code translation and optimization for critical industries.

Empress TherapeuticsListed
empresstx.combiotech_life_sciences

Empress Therapeutics is a pioneering company focused on revolutionizing drug discovery by applying genetics to identify small molecule drugs. The company utilizes its proprietary…

FemtosenseListed
femtosense.aienterprise_software

Femtosense, now known as femtoAI, develops a full-stack AI inference platform for edge devices, focusing on high performance and energy efficiency through neuromorphic computing p…

GamebeastListed
gamebeast.gggaming
HollyListed
hollygov.comenterprise_software

Holly is an AI-powered platform designed to optimize job classification and compensation processes for government agencies, enabling faster and more accurate HR decisions.

iCOUNTERListed
icounter.comsecurity_cyber

iCOUNTER is a cyber risk intelligence provider enabling companies to counter targeted cyber-attacks through precision risk intelligence. The company offers the Counter Threat Oper…

InfiniGListed
infinig.ioenterprise_software

InfiniG delivers essential mobile coverage solutions that work, focusing on neutral host systems using shared spectrum to enhance cellular connectivity in modern buildings.

KusariListed
kusari.devsecurity_cyber

Kusari is a software supply chain security platform designed for DevSecOps, providing tools to manage software bill of materials (SBOMs) and enhance security across the software d…

LightSourceListed
lightsource.aienterprise_software

LightSource is an AI-powered platform that manages the entire direct materials lifecycle, connecting engineering, procurement, and suppliers to streamline sourcing processes and i…

Lumia HealthListed
lumiahealth.comhealthcare_digital

Lumia Health is building the world's most advanced wearable to help people live healthier lives by tracking blood flow and its impact on overall well-being.

MesaQuantumListed
mesaquantum.comrobotics_automation

Mesa Quantum is commercializing chip-scale quantum sensors to meet the demands of industry, focusing on practical applications for technology innovation, particularly in navigatio…

Micron BiomedicalListed
micronbiomedical.combiotech_life_sciences

Micron Biomedical is a clinical-stage life science company committed to expanding access to vaccines and therapeutics globally through a proprietary dissolvable microarray technol…

NametagListed
getnametag.comsecurity_cyber

Nametag provides ready-to-use solutions for secure employee onboarding, self-service account recovery, helpdesk verification, and more, built on workforce-grade Deepfake Defense™…

Oura RingListed
ouraring.comhealthcare_digital

Oura Ring is a smart ring designed to monitor health metrics such as sleep, activity, and stress, providing users with insights to improve their overall well-being.

Parallel FluidicsListed
parallelfluidics.combiotech_life_sciences

Parallel Fluidics is a company based in Boston, MA, offering microfluidic products and services, including custom microfluidic devices and a hardware library.

ParavisionListed
paravision.aisecurity_cyber

Paravision is a leader in trusted Identity AI, providing advanced biometric solutions including face recognition, liveness detection, deepfake detection, and age estimation. Their…

Phoenix SemiconductorListed
phoenixsemicorp.comsemiconductors_hardware

Phoenix Semiconductor is pioneering a new approach to recreating legacy and mature microelectronic components, delivering trusted, domestically produced components for government…

Plato SystemsDetails pending
plato.systems

Details are not available yet. The company remains listed.

Principal MineralListed
principalmineral.commanufacturing_industrial

Principal Mineral is dedicated to securing resilient supply chains for strategic materials essential for AI, energy, and advanced manufacturing, ensuring reliable access to materi…

RAVNListed
getravn.xyzrobotics_automation

RAVN is a platform that enables anyone to build hardware products by utilizing a swarm of AI agents that handle everything from component sourcing to design and fabrication-ready…

Redcoat AIListed
redcoat.aisecurity_cyber

Redcoat AI is an AI-native security platform designed to protect organizations from evolving cyber threats, particularly those leveraging generative AI and social engineering tact…

SafiListed
No domain yetbiotech_life_sciences

Safi Biotherapeutics manufactures adult stem-cell derived human red blood cells (mRBCs) to provide a safe and reliable blood supply for civilian and military transfusion needs, ad…

SealonixListed
sealonix.combiotech_life_sciences

Sealonix focuses on the development and commercialization of hemostatic sealants using its proprietary biomaterials. Their initial product is a sealant patch designed for rapid he…

SkyFiListed
skyfi.comenterprise_software

SkyFi is a self-service Earth Intelligence Platform that allows users to run built-in geospatial analytics, task satellites, and access archived imagery from 40+ providers. The du…

SomnairListed
somnairsleep.combiotech_life_sciences

Somnair develops novel treatments for obstructive sleep apnea with its first-in-class non-invasive neurostimulation oral appliance, a disease affecting 54 million Americans.

TassoListed
tassoinc.comhealthcare_digital

Tasso is a healthcare technology company focused on improving patient experience and health through innovative blood collection devices that eliminate the need for painful needles.

Unit 221BListed
unit221b.comsecurity_cyber

Unit 221B is a threat disruption company delivering actionable threat intelligence and cybersecurity solutions that enable enterprises, law enforcement, and government agencies to…

VectorWaveListed
vectorwave.comenterprise_software

VectorWave is the only company enabling real-time AI inference at the edge directly on raw radio signals, powered by a neuromorphic analog architecture that allows for nanosecond-…

Flashpass EducationListed
flashpasseducation.comedtech

Flashpass Education is a workforce platform designed for trade schools, community colleges, and other educational institutions, focusing on funding, curriculum development, and jo…

MusubiListed
musubilabs.aienterprise_software

Musubi builds AI infrastructure for Trust & Safety teams, offering AI-powered moderation solutions that enhance community safety on social platforms and marketplaces.

Druid SoftwareListed
druidsoftware.comenterprise_software

Druid Software is a cellular core network software company based in Ireland, specializing in private 4G and 5G networks. They provide solutions for enterprise communications, mobi…