Skip to main content

J2 Ventures — Portfolio

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

53
Companies
$901.2M
Total invested
$18.8M
Avg. check
54
Industries
Artificial Intelligence (AI) 7Software 6Cyber Security 5Manufacturing 4Information Technology 4SaaS 3+48 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

jane@on●●●●●●●.com
linkedin.com/in/●●●●●●
Verified contacts, updated monthly
Get instant access →

Portfolio companies

Showing 124 of 53
Arkenstone Defense
July 2026

Arkenstone Defense is a compliance and operations software platform for defense contractors.

GovTech · Menlo Park$35.0M Seed
Acalvio Technologies
July 2022

Acalvio is an AI-powered preemptive cybersecurity company focused on countering AI-driven identity and infrastructure intrusion.

Cloud Computing · Santa Clara$17.4M Series D
Inner Logic
July 2026

Inner Logic is the development framework for the next generation of procedures, from orthopedic implants.

Baltimore$11.5M Seed
Sazabi
June 2026

Sazabi provides an AI-native observability platform with autonomous alerts, conversational debugging, and coding agent integrations.

Analytics · San FranciscoSeed
Phoenix Tailings
June 2026

Phoenix Tailings is a rare earth metals production company that transforms mining waste (tailings) into usable rare earth metals and alloys.

Advanced Materials · Woburn$500.0M Debt Financing
Principal Mineral
June 2026

Principal Mineral develops and supplies strategic metals, high-performance alloys, and advanced materials from industrial mineral sources.

Advanced Materials · Southlake$280.0M Venture - Series Unknown
Lumia
May 2026

Lumia builds wearable that tracks blood flow to help people understand their bodies, improve well-being, and make proactive health choices.

Analytics · Boston$1.5M Product Crowdfunding
Cinder Technologies
May 2026

Cinder | Responsible AI, Trust & Safety, and Data Labeling At Scale

Artificial Intelligence (AI) · New YorkSeries B
Flashpass
April 2026

Flashpass is an online social media certification designed for universities and startup accelerators.

Information Services · Columbus$4.3M Seed
Safi Biosolutions
April 2025

Safi Biosolutions is biotechnology based company.

Biotechnology · ArlingtonGrant
Redcoat AI
March 2024

Redcoat AI is a platform that develops cybersecurity tools to protect against social engineering threats on mobile devices.

Artificial Intelligence (AI) · Menlo Park$4.2M Seed
Unit 221b
September 2025

Unit 221b is an online cyber security firm focusing on providing its clients with all the tools necessary to prevent cyber hacks.

Cyber Security · New York$5.0M Seed
Shift5
September 2025

Shift5 is a cybersecurity company that provides hardware and software solutions to defend operational technology (OT) platforms.

Cyber Security · Arlington$75.0M Series C
SkyFi®
August 2025

SkyFi® is an earth intelligence platform that provides a seamless way to access and analyze diverse geospatial data,

Apps · Austin$14.2M Venture - Series Unknown
VectorWave
June 2025

VectorWave is a technology business dedicated to providing enhanced solutions for spectrum.

Telecommunications · Cambridge$2.5M Seed
Phoenix Semiconductor
June 2025

Phoenix offers clients a dependable, safe, and everlasting source for vital microelectronic parts that aren't available.

Computer · Austin$5.5M Seed
LightSource
March 2025

LightSource develops a supply chain management platform to help professionals collaborate with their suppliers.

Artificial Intelligence (AI) · San Francisco$33.0M Series A
Musubi
February 2025

Musubi is an artificial intelligence company that offers content moderation and fraud detection services across social media apps.

Artificial Intelligence (AI) · Santa Barbara$5.0M Seed
Micron Biomedical
January 2025

Micron Biomedical is a clinical-stage biopharmaceutical company on a rapid path to bring drugs and vaccines to market.

Biopharma · Atlanta$16.0M Series A
Druid Software
January 2025

Druid has built its reputation on the development of cellular network products for enterprise and bespoke mobile technology design

Information Technology · Bray$20.0M Venture - Series Unknown
Aether Biomedical
December 2024

Aether Biomedical is a rehabiliation robotics startup focused on building bionic limbs for upper limb amputees

Artificial Intelligence (AI) · PoznanSecondary Market
Parallel Fluidics
November 2024

Parallel Fluidics is a new microfluidics manufacturing company.

Industrial · Stoneham$7.0M Seed
Gamebeast
August 2024

Low code tool for game developers

Seattle$3.7M Pre-Seed
Kusari
January 2024

Armor for your supply chain! Equipping you with the tools to prevent and react to supply chain attacks!

Ridgefield$8.1M Seed

Where J2 Ventures invests

Artificial Intelligence (AI)7
Software6
Cyber Security5
Manufacturing4
Information Technology4
SaaS3

About J2 Ventures's portfolio

How many companies has J2 Ventures invested in?

J2 Ventures has invested in 53 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does J2 Ventures invest in?

J2 Ventures's top investment sectors include Artificial Intelligence (AI), Software, Cyber Security, Manufacturing, Information Technology. The firm invests across 54 different industry categories.

What is J2 Ventures's largest investment?

Among tracked funding rounds, Phoenix Tailings received $500.0M in a Debt Financing round. J2 Ventures's total known invested capital is $901.2M.

What is the average investment size for J2 Ventures?

J2 Ventures's average investment size is $18.8M across its portfolio of 53 companies.

What are J2 Ventures's most recent investments?

Recent J2 Ventures portfolio additions include Arkenstone Defense, Acalvio Technologies, Inner Logic, Sazabi, Phoenix Tailings. These companies were founded in 2020 or later.

Reach the founders behind these 53 companies
Verified emails and LinkedIn profiles, updated monthly.
Get instant access →