United States · 
What does J2 Ventures invest in?
J2 Ventures invests most often at Seed and Venture (61% of the rounds on record), in sectors such as Advanced Computing, Biomedical Engineering and Cybersecurity.
J2 Ventures highlights
- 01
17 cheques in the last 12 months
- 02
Mostly Seed and Venture: 61% of its rounds
- 03
Sole investor in 8 rounds, median $11M
What they do
We fuel early-stage companies pioneering technologies across advanced computing, biomedical engineering, cybersecurity, and infrastructure.From their own website
- Type
- VC firm (from a list, unverified)
- Cheque size
- Not stated
- Stages
- Pre-seedSeedSeries ASeries BGrowth
- Sectors
- Advanced ComputingBiomedical EngineeringCybersecurity
- Based in
- Medford, United States
- Cold pitches
- Not stated
The record
Every round we can evidence, newest first39 appearances
- 2026
17 rounds
- Sept
- Sept
- Aug
- Jul
- Jul
- Jun
- Jun
- Jun
- May
- May
- Apr
- Feb
- Feb
- Feb
- Jan
- Jan
- Jan
- 2025
13 rounds
- Sept
- Sept
- Sept
- Jun
- Jun
- Apr
- Mar
- Feb
- Feb
- Jan
- Jan
- Jan
- Jan
- 2024
6 rounds
- Dec
- Nov
- Aug
- Mar
- Jan
- Jan
- 2023
1 round
- May
- 2022
1 round
- Jul
- 2021
1 round
- Dec
An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.
The team
Named by the firm itself, on a filing, its Form ADV or its company registration2 named
JAJonathan Alexander BronsonExecutive OfficeriFiling they signed
MAMichael Alexander HarstrickExecutive OfficeriFiling they signed
We also hold 11 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.
What the register says
From the firm's own filings with the SEC, which it must file accurately by law
$577Mgross assets of its fundsOct 2026
Exemptreporting adviserventure or small private funds
- Legal name
- J2 Ventures Advisors, LLC
- SEC number
- CRD 317140
What they claim to have backed
From their own portfolio page (on their website)
19 of 36 we have independently watched raise
Aalyria Laser fastAether Human andApex Space Next-genArkenstone Defense HRCinder Unified intelligenceCode Metal OptimizedDruid Global leaderGameBeast Dynamic digitalInfiniG Mobile coverageKusari Blueprint forLightSource Effortless, on-budgetMicron Biomedical InjectionsParallel Fluidics Rapid,Principal Mineral BuildingRavn Rugged communicationsSkyFi The world'sTasso Needle freeUnit 221B MilitaryVectorWave Compute onAcalvio Leading edgeFemtosense Hyper-efficient computeFlashpass Education UpskillingHolly AI poweredLumia Health BiometricMesaQuantum Chip-Scale Quantum SensingMusubi AI contentNametag Passwordless authenticationOura Ring ClinicalParavision Mission criticalPhoenix Semiconductor LegacyPlato Systems TaglessPress KitRedcoat AI DefenseSafi Bio-manufactured human bloodSomnair Non-invasive neurostimulationiCOUNTER AI-driven Cyber Defense
Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.