Union Square Ventures

Activity from announced rounds

Activity in this selectionUnited States · Oct 14, 2026 · Jul 17, 2026
Rounds participated in
6
Confirmed lead rounds
0
2 roles undisclosed
New companies
5
First participation on record · 1 follow-on
Funding in participating rounds
$379.4M
6 disclosed · full round size, not this investor’s share

By stage

Undisclosed3
Series A2
Series B1

By primary sector

Climate tech3
AI1
Hardware1
Proptech1

By country

United States6

Rounds

6 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
Odyssey Energy Solutions

Odyssey Energy Solutions provides finance, procurement, and project-management tools for distributed renewable-energy companies, financiers, and equipment suppliers.

$74MFunding
Participant
Lydian

Lydian is making cost-competitive sustainable aviation fuel a reality.

$43MSeries A
Role not disclosed
Gritt

Combines robotics and AI to automate labor-intensive infrastructure and construction site tasks

$32.4MSeed+Series A
Role not disclosed