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J2 Ventures — Portfolio, Page 2

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

54
Companies
$1.6B
Total invested
$30.4M
Avg. check
46
Industries
Artificial Intelligence (AI) 6Biotechnology 4Electronics 4Health Care 4Manufacturing 4Cyber Security 4+40 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

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Portfolio companies

Showing 25–48 of 54
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
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
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
Sealonix
May 2023

Sealonix focuses on the development and commercialization of hemostatic sealants using its proprietary biomaterials.

Advanced Materials · Bedford$20.0M Series A
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
Tasso
December 2021

Tasso is a Medical innovation company changing the way diagnostics are delivered

Health Care · Seattle$100.0M Series B
Aalyria
February 2026

Aalyria is an advanced aerospace communications company that provides high-throughput networks for both commercial and government clients.

Internet · Livermore$100.0M Series B
Phoenix Tailings
February 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$30.2M Series B
SkyFi®
January 2026

SkyFi® is an earth intelligence platform that provides satellite imagery and analytics to help interpret and analyze planetary data.

Aerospace · Austin$12.7M Series A
Mesa Quantum
January 2026

Mesa Quantum is a quantum sensor manufacturing company that provides volume manufacturing of integrable chip-scale technology solutions.

Electronics · Boulder$11.2M Series A
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
VectorWave
June 2025

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

Electronics · 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
Safi Biosolutions
April 2025

Safi Biosolutions is biotechnology based company.

Biotechnology · ArlingtonGrant
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
Lumia
February 2025

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

Artificial Intelligence (AI) · Boston$6.8M Series Unknown
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
Femtosense
January 2025

Femtosense is a technology company.

Information Technology · Palo Alto$60K Undisclosed
Holly
January 2025

Holly operates as an AI company that modernizing government hiring.

Artificial Intelligence (AI) · New York$2.2M Pre-Seed
Cinder Technologies
January 2024

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

Fraud Detection · New YorkSeries Unknown

Where J2 Ventures invests

Artificial Intelligence (AI)6
Biotechnology4
Electronics4
Health Care4
Manufacturing4
Cyber Security4

About J2 Ventures's portfolio

How many companies has J2 Ventures invested in?▸

J2 Ventures has invested in 54 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), Biotechnology, Electronics, Health Care, Manufacturing. The firm invests across 46 different industry categories.

What is J2 Ventures's largest investment?▸

Among tracked funding rounds, Tasso received $100.0M in a Series B round. J2 Ventures's total known invested capital is $1.6B.

What is the average investment size for J2 Ventures?▸

J2 Ventures's average investment size is $30.4M across its portfolio of 54 companies.

What are J2 Ventures's most recent investments?▸

Recent J2 Ventures portfolio additions include Aether Biomedical, Parallel Fluidics, Gamebeast, Redcoat AI, Kusari. These companies were founded in 2020 or later.

Reach the founders behind these 54 companies
Verified emails and LinkedIn profiles, updated monthly.
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