Union Square Ventures

Activity from announced rounds

Activity in this selectionUnited States · Oct 14, 2026 · Sep 15, 2026
Rounds participated in
3
Confirmed lead rounds
0
All roles disclosed
New companies
2
First participation on record · 1 follow-on
Funding in participating rounds
$230M
3 disclosed · full round size, not this investor’s share

By stage

Series A1
Series B1
Undisclosed1

By primary sector

AI1
Climate tech1
Hardware1

By country

United States3

Rounds

3 in this selection
Nous Research

Open-source AI models and the Hermes agent, which retains project memory and reusable skills across tasks.

$90MSeries B
Participant
Efficient Computer

Building energy-efficient general-purpose processors for AI and computing applications

$100MAdditional funding
Participant
Rune

A modular clean-compute platform that deploys GPU clusters at renewable-energy sites without building a conventional data center.

$40MSeries A
Participant