VC · WATER INVESTOR

Y Combinator

Y Combinator is a water-focused venture capital that has backed 4 water companies since 2005. (don't) Waste Water rates its water commitment Committed.

Committed
Water Commitment
Type
Venture Capital
AUM
$20.0B
Founded
2005
HQ
580 20th St, San Francisco, CA 94107, United States
Stage
Seed - Series B
Median round
$5M
Portfolio
4 cos

Water Commitment Score

Tier
Committed
4 water companies · last deal 2025 · leads ~14% 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

Seed3
Series A2
Series B1
Median round$5Mrange $2M - $32M · 7 disclosed

Portfolio · 4 water companies

Spout
Spout is a U.S.-based water technology company that designs and manufactures countertop atmosph
$2MSeed · 2025
Waterplan
Waterplan offers a cloud-based platform that combines satellite imagery, hydrological models an
$11MSeries A · 2023
Biobot Analytics
Biobot Analytics deploys proprietary sewage-sampling hardware and cloud-based metabolomics anal
$4.2MSeed · 2020
Solugen
Solugen’s Bioforge technology combines engineered enzymes with metal catalysts to transform pla
$32MSeries B · 2019

See the full portfolio in Leviathan →

Invests alongside

Fifty Years2x Founders Fund2x Refactor Capital2x Burnt Island Ventures1x Engine Ventures1x American Family Insurance Institute1x DCVC1x Liquid2 Ventures1x Ekistic Ventures1x

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