Union Square Ventures

Activity from announced rounds

Activity in this selectionUnited States · Jul 31, 2026 · Jul 1, 2026

Union Square Ventures is the venture firm explicitly named by Nous Research and Efficient Computer.

Recorded funding activity

Nous develops open models and agents. Efficient develops processors, while Rune deploys computing at renewable-energy sites. The company records retain separate technologies and financing events.

Sources
Rounds participated in
2
Confirmed lead rounds
—
2 roles undisclosed
New companies
2
First participation on record · 0 follow-on
Funding in participating rounds
$75.4M
2 disclosed · full round size, not this investor’s share

By stage

Series A1
Undisclosed1

By primary sector

Climate tech1
Proptech1

By country

United States2

Rounds

2 in this selection
Lydian

Lydian develops sustainable aviation fuel.

$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