18 Best Hydropower Startups to Watch in 2025

The Definitive Seedtable Ranking of Hydropower Startups

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 18 start-ups with an aggregate funding of $507.4m. The average funding per company in this subset is $28.2m.

Last update to the database: Feb 18, 2025. See changelog.

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Pacific Northwest National Laboratory - PNNL logo

Pacific Northwest National Laboratory - PNNL

Pacific Northwest National Laboratory (PNNL) is a research laboratory that aims to advance scientific discovery in the fields of data science, biology, and Earth sciences for the US government and the private sector.

1

Funding Rounds

Viridos logo

Viridos

Viridos is applying synthetic biology to microalgae for the production of products that address climate change and sustainability. Viridos is focused on producing algal biofuels and other sustainable resources from algae.

8

Funding Rounds

$175.0m

Money raised

Enervee logo

Enervee

Enervee is a company founded in 2010 by Hjalmar Branting, Iker Casillas, Aoife Ní Fhearraigh, Yhonastan Fabian, The Sxplay, Ujiie Naotomo, Robbie Grossman, Ingrid Gfölner, Moisey Uretsky, Don Epperson, Matt Service FBCS and Bhavesh M. Mehta.

5

Funding Rounds

$40.4m

Money raised

Orient Green Power logo

Orient Green Power

Orient Green Power is a Chennai-based firm involved in the development of biomass, wind, and small hydro projects.

1

Funding Rounds

$55.0m

Money raised

Sun Catalytix logo

Sun Catalytix

Sun Catalytix was an energy storage company that was acquired by Lockheed Martin Energy.

4

Funding Rounds

$18.5m

Money raised

Virent Energy Systems logo

Virent Energy Systems

Virent Energy Systems is a Madison, Wisconsin-based renewable fuel source company.

4

Funding Rounds

$74.9m

Money raised

AW-Energy logo

AW-Energy

AW-Energy is a developer of electricity generation technology from ocean waves. It has developed Wave Roller that converts ocean waves into energy and electricity. The wave roller can be fully submerged and anchored operates in near-shore areas at depths of between 8 and 20 meters. The bottom fixed panel of the device which acts as an oscillating wave surge converter captures the ocean wave energy and converts the movement to electricity using the power storage and hydraulic system. The electrical output generated from this renewable wave energy power plant is connected to the electric grid via a subsea cable.

1

Funding Rounds

Mechanical Solutions, Inc logo

Mechanical Solutions, Inc

Mechanical Solutions resolves vibration & dynamics problems in rotating machinery

9

Funding Rounds

$5.5m

Money raised

Limejump logo

Limejump

Limejump is a SaaS energy management founded in 2013 by Erik Nygard.

1

Funding Rounds

$4.0m

Money raised

Green Highland Renewables logo

Green Highland Renewables

Green Highland Renewables (GHR) specializes in developing small-scale run of river hydro projects.

1

Funding Rounds

$5.3m

Money raised

Natel Energy logo

Natel Energy

Natel Energy is a company founded in 2009.

3

Funding Rounds

$64.0m

Money raised

H2scan logo

H2scan

H2scan is a company founded in 2002 by Dennis Reid.

2

Funding Rounds

$17.5m

Money raised

Dynamhex logo

Dynamhex

Dynamhex is a personalized, localized, and standardized climate action platform.

1

Funding Rounds

$100.0k

Money raised

Copperleaf Technologies logo

Copperleaf Technologies

Copperleaf Technologies is a company founded in 2000.

2

Funding Rounds

$10.5m

Money raised

Orbital Marine Power (formerly Scotrenewables Tidal Power) logo

Orbital Marine Power (formerly Scotrenewables Tidal Power)

Orbital Marine Power is a company founded in 2002.

1

Funding Rounds

$12.0m

Money raised

Auro Mira Energy logo

Auro Mira Energy

Chennai-based firm currently present in renewable energy areas of biomass, small hydro and wind sectors.

1

Funding Rounds

$21.0m

Money raised

1

Funding Rounds

$3.5m

Money raised

1

Funding Rounds

$235.6k

Money raised