Tamarack Global

tamarackglobal.com ↗Activity from announced rounds

Activity in this selectionUnited States · Oct 14, 2026 · Jul 17, 2026

Tamarack Global backs technology companies across industrial manufacturing, energy, space and the application of AI to the physical world.

Technology investment across physical industries

Tamarack Global invests in entrepreneurs developing technologies and business models that can open new markets. Its published investment themes include energy, advanced manufacturing, space, defense technology and the intersection of AI with physical systems.

Funding activity recorded by RoundOS

RoundOS records Tamarack’s participation in Hark, Isembard and Poseidon Aerospace. Hark develops personal AI and computing hardware; Isembard builds software-led manufacturing operations; Poseidon develops autonomous cargo aircraft. These disclosed financings illustrate the firm’s activity captured in this database.

Sources
Rounds participated in
1
Confirmed lead rounds
1
All roles disclosed
New companies
1
First participation on record · 0 follow-on
Funding in participating rounds
$11M
1 disclosed · full round size, not this investor’s share

By stage

Seed1

By primary sector

Mobility1

By country

United States1

Rounds

1 in this selection
Poseidon Aerospace

Poseidon Aerospace is developing unmanned cargo aircraft for commercial freight and defense logistics. Its Egret short-takeoff-and-landing freighter and Heron seaplane are designed to move heavy loads between small, remote or water-based operating sites without an onboard pilot.

$11MSeed
Lead