Gov. Fund · WATER INVESTOR

MassVentures

MassVentures is a water-focused gov. fund that has backed 2 water companies since 1978. (don't) Waste Water rates its water commitment Occasional.

Occasional

Water Commitment

Compiled by Antoine Walter, (don't) Waste Water, from official filings and direct intelligence in Leviathan.

Type

Gov. Fund

AUM

$100M

Founded

1978

Boston, USA

Stage

Seed - Series A

Median round

$3.3M

Portfolio

2 cos

Water Commitment Score

Tier

Occasional

2 water companies · last deal 2024 · leads ~0% 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

Seed1

Series A1

Median round$3.3Mrange $75K - $15.9M · 3 disclosed

Portfolio · 2 water companies

Dottir Labs

MIT spinout developing compact, scalable Raman spectroscopy sensors for real-time chemical moni

Other · 2024

Aclarity

Aclarity is a Massachusetts-based venture-backed company developing an electrochemical oxidatio

Series A · 2023

See the full portfolio and deal analysis in Leviathan →

Invests alongside

Burnt Island Ventures2x Aqualateral1x HG Ventures1x Bidra Innovation Ventures1x Nor'easter Ventures1xDCVC1x Maroon Venture Partners Fund1x Massachusetts Clean Energy Center1x

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