645 Ventures

Activity from announced rounds

Activity in this selectionUnited States · Oct 15, 2026 · Jul 18, 2026
Rounds participated in
4
Confirmed lead rounds
0
3 roles undisclosed
New companies
4
First participation on record · 0 follow-on
Funding in participating rounds
$364.7M
4 disclosed · full round size, not this investor’s share

By stage

Seed3
Series B1

By primary sector

AI2
Fintech2

By country

United States4

Rounds

4 in this selection
Gimlet Labs

Develops software for efficient AI inference across diverse hardware types

$300MSeries B
Participant
Rivo

Automatically moves idle cash into higher-yield accounts and back before bills are due

$2.7MSeed
Role not disclosed
Ellis

AI-native operations platform for private credit

$10MSeed
Role not disclosed
Fish Audio

AI voice platform for expressive real-time text-to-speech, voice cloning, and voice agents

$52MSeed
Role not disclosed