PE · WATER INVESTOR

Duke Energy

Duke Energy is a water-focused private equity that has backed 1 water company since 1904. (don't) Waste Water rates its water commitment One-Off.

One-Off
Water Commitment
Type
Private Equity
AUM
$171.0B
Founded
1904
HQ
Charlotte, United States
Stage
Series C - Series D
Median round
$90M
Portfolio
1 cos

Water Commitment Score

Tier
One-Off
1 water companies · last deal 2022 · leads ~0% of rounds · Med confidence
How this is scored ↗
as of Jun 2026 · no pay-to-rank

Compiled from official filings, third-party records, and direct intelligence from investors and founders, in Leviathan · recomputed monthly · as of Jun 2026.

How they invest

Series C1
Series D1
Median round$90Mrange $50M - $130M · 2 disclosed

Portfolio · 1 water companies

SOURCE Global
Source Global’s solar-powered SOURCE Hydropanels use proprietary hygroscopic materials and phot
$130MSeries D · 2022

See the full portfolio in Leviathan →

Invests alongside

Breakthrough Energy Ventures2x Material Impact2x BlackRock2x Microsoft Climate Innovation Fund1xFifth Wall1xMonashee Capital1xHarvard Management Company1xThe Lightsmith Group1xWind Ventures1x

Highlighted = profiled on (don't) Waste Water.