VC · WATER INVESTOR

Flat6Labs

Flat6Labs is a water-focused venture capital that has backed 1 water company since 2011. (don't) Waste Water rates its water commitment Occasional.

Occasional

Water Commitment

Type

Venture Capital

AUM

$95M

Founded

2011

Stage

Pre-Seed - Seed

Median round

$2.2M

Portfolio

1 cos

Water Commitment Score

Tier

Occasional

1 water companies · last deal 2025 · 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

Pre-Seed1

Seed1

Median round$2.2Mrange $1M - $3.5M · 2 disclosed

Portfolio · 1 water companies

Kumulus Water

Kumulus Water manufactures the Kumulus-1 atmospheric water generator, a solar-powered, off-grid

$3.5MSeed · 2025

See the full portfolio in Leviathan →

Invests alongside

Bpifrance2x Paris Techstars Accelerator1xWILCO1xThe Source (Spadel)1xKalys Ventures1xPlus VC1x

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