MCJ

Activity from announced rounds

Activity in this selectionUnited States · Oct 16, 2026 · Jul 19, 2026

MCJ invests in the energy and industrial transition, including technology that helps businesses adapt to climate change.

Investment focus

The firm backs companies working on cleaner and more resilient energy and industrial systems. Its published investment writing spans both physical technologies and software.

Activity recorded by RoundOS

Recorded examples include DG Matrix’s power infrastructure, Light’s retail-energy platform and Reservoir’s electric water heaters. These transactions show several approaches to changing energy systems, from data-center power conversion to household equipment and electricity services.

Sources
Rounds participated in
3
Confirmed lead rounds
0
All roles disclosed
New companies
3
First participation on record · 0 follow-on
Funding in participating rounds
$128M
3 disclosed · full round size, not this investor’s share

By stage

Seed1
Series A1
Undisclosed1

By primary sector

Climate tech3

By country

United States3

Rounds

3 in this selection
Odyssey Energy Solutions

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

$74MFunding
Participant
Light

Light supplies the retail-energy platform behind branded electricity offers from partners such as solar and battery providers.

$46MSeries A
Participant
Reservoir

Reservoir makes and installs predictive all-electric water heaters designed to serve homeowners and respond to energy needs.

$8MSeed
Participant