J4 logo
J4 logo
J4
j4.ventures
j4.ventures • HQ: Keene, United States • 51-200 employees • Founded 2013
HQ: Keene, United States • 51-200 employees • Founded 2013
Actively hiring
Maintenance, Repair & Operations (MRO)
Venture Capital
Follow
Overview Companies Jobs Focus Co-investors Similar investors Questions
Back to the profile J4

J4 portfolio

J4 (Venture capital) is known to hold 5 companies, 3 of them startups. 2 of them are hiring now, with 16 open roles. Its companies closed 1 venture rounds in 12 months, raising $40M. Most of them work in Corporate Training, Speech & Audio AI, Sales Enablement.

Source: Alion Venture capital Oct 16, 2026
Investments
5
3 of them startups
Hiring now
2
16 open roles
Rounds in 12 months
1
$40M raised

Companies J4 has invested in

All 5 Hiring now 2
Yoodli Sales Enablement · United States Series B $40M · 10 mo ago 16 roles round in the pressAug 8, 2022
Ethosphere Speech & Audio AI Pre-Seed $2.5M · 13 mo ago round in the pressSep 16, 2025
Sonar Internet Service Providers · United States Venture round $2.4M · 19 mo ago 2 roles round in the pressFeb 25, 2025
Sonar DevSecOps · United States Venture round $2.4M · 19 mo ago round in the pressFeb 25, 2025
Sonar Switzerland Venture round $2.4M · 19 mo ago round in the pressFeb 25, 2025

Focus

Markets
Corporate Training40%
Speech & Audio AI40%
Sales Enablement20%
Conversational AI20%
Internet Service Providers20%
Billing & Subscription Management20%
DevOps & Platform Engineering20%
DevSecOps20%
Where its companies are
United States60%
Switzerland20%
Stage of its companies
Venture, series not stated60%
Series B20%
Pre-seed & seed20%

Questions about J4

How many companies has J4 invested in?

J4 is known to hold 5 companies: 3 startups, and 0 exits so far, read from its own portfolio page and the funding rounds that name it.

Is J4 investing now?

J4 has no round in the press in 12 months and no new company on its portfolio page in 90 days.

What does J4 invest in?

The markets of the companies J4 holds: Corporate Training (40%), Speech & Audio AI (40%), Sales Enablement (20%), Conversational AI (20%), Internet Service Providers (20%).

Which J4 portfolio companies are hiring?

2 companies J4 holds are hiring now, with 16 open roles listed on this page.

Who does J4 invest alongside?

The investors that hold the most companies together with J4: Nina Capital, GSR.

How this page is made

A company counts as a holding when the investor’s own portfolio page links to it, a program’s catalog lists it, or a funding round in the press names the investor. The numbers are rebuilt every night; each company shows where it came from and when it was first seen.

Sources: 5 rounds in the press that name it

J4 portfolio: 5 known companies. Alion, Oct 16, 2026. https://alion.io/company/j4/portfolio

Licence: CC BY-SA 4.0JSON