Angel · WATER INVESTOR

E8 Angels (E8 Fund)

E8 Angels (E8 Fund) is a water-focused angel that has backed 4 water companies since 2006. (don't) Waste Water rates its water commitment Committed.

Committed

Water Commitment

Type

Angel

Founded

2006

Stage

Seed - Series B

Median round

$1.3M

Portfolio

4 cos

Water Commitment Score

Tier

Committed

4 water companies · last deal 2023 · 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

Seed2

Series B1

Median round$1.3Mrange $544K - $11M · 4 disclosed

Portfolio · 4 water companies

Aquagga

Aquagga is a company that develops hydrothermal alkaline treatment technology to destroy per- a

$544K2023

Apana

Apana provides an IoT-based water management platform that uses networked ultrasonic flow senso

$11MSeries B · 2019

Membrion

Membrion is a developer of durable ceramic ion exchange membranes for electrodialysis treatment

$1.5MSeed · 2018

StormSensor

StormSensor deploys cloud-connected ultrasonic and temperature sensors in stormwater and wastew

$1.1MSeed · 2018

See the full portfolio in Leviathan →

Invests alongside

Steve Strickler1xWefunder1xKingsCrowd Capital1xAlaska Investor Network1xBellingham Angel Investors1x Sierra Angels1xSand Hill Angels1x Keiretsu Forum Fund1x1320 Park Partners1x

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