Flume Ventures

Activity from announced rounds

Activity in this selectionOct 24, 2026 · Hardware · Jan 1, 2026

Flume Ventures is an Incline Village investment firm whose own communications identify Heaviside, Hydra Host and Positron.

Recorded funding activity

Heaviside develops autonomous precision munitions. Hydra links computing infrastructure operators with AI customers, while Positron develops inference hardware and software. The company records connect the same firm to different hardware and computing systems.

Sources
Rounds participated in
5
Confirmed lead rounds
0
4 roles undisclosed
New companies
3
First participation on record · 2 follow-on
Funding in participating rounds
$418M
4 disclosed · full round size, not this investor’s share

By stage

Series A2
Series B2
Series C+1

By primary sector

AI2
Defense tech2
Hardware1

By country

United States5

Rounds

5 in this selection
Positron AI

Positron AI develops memory-focused hardware and software for large-language-model inference.

≤$875MSeries C and Series C-1 financing package
Participant
Heaviside Industries

Builds autonomous precision munitions platforms for air, land, and sea forces

$60MSeries B
Role not disclosed
Hydra Host

Operates an AI data center operating system and GPU compute offtake network connecting data center operators with AI builders

$100MSeries A
Role not disclosed
Heaviside Industries

Builds autonomous precision munitions platforms for air, land, and sea forces

$28MSeries A
Role not disclosed
Positron AI

Positron AI develops memory-focused hardware and software for large-language-model inference.

$230MSeries B
Role not disclosed