PE · WATER INVESTOR

Ecolab

Ecolab is a water-focused private equity that has backed 3 water companies since 1923. (don't) Waste Water rates its water commitment Committed.

Committed
Water Commitment
Type
Private Equity
Founded
1923
HQ
Saint Paul, USA
Stage
Series A
Median round
$10M
Portfolio
3 cos

Water Commitment Score

Tier
Committed
3 water companies · last deal 2025 · leads ~33% of rounds · High 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 A1
Median round$10Mrange $8.7M - $10M · 3 disclosed

Portfolio · 3 water companies

Membrion
Membrion is a developer of durable ceramic ion exchange membranes for electrodialysis treatment
$8.7M2025
Water and Carbon Group
Water and Carbon Group provides nature-based wastewater and stormwater treatment systems-such a
$10M2024
FTD Solutions
FTD Solutions builds dynamic “digital-twin” models of ultrapure-water, wastewater and energy sy
$10MLED Series A · 2024

See the full portfolio in Leviathan →

Invests alongside

Emerald Technology Ventures1x Lam Capital (a/k/a LAM Research)1xPureTerra Ventures1x The Lewis Family Office1xID Ventures1xGiantLeap Capital1x Pangaea Ventures1xW. L. Gore & Associates1xSafar Partners1x

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