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Cleantech Open — Portfolio, Page 3

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

227
Companies
$747.8M
Total invested
$4.4M
Avg. check
61
Industries
Energy 7Renewable Energy 5Agriculture 4Manufacturing 4AgTech 3CleanTech 3+55 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

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Portfolio companies

Showing 4972 of 227
Elateq
March 2024

Elateq delivers an all-in-one water treatment system that simultaneously removes a wide range of water contaminants.

Environmental Consulting · Amherst$200K Grant
Clean Valley Bio-filtration Technologies
March 2026

Clean Valley CIC is a group of entrepreneurs, engineers and environmental scientists with a nature-inspired ideas for Canadian Innovation.

AgTech · Dartmouth$4.0M Debt Financing
Scalvy
March 2026

Scalvy is a modular power electronics company delivering ultra-high, grid-interactive power for data centers, energy storage, and EVs.

Data Center · Austin$13.9M Series A
MicroEra Power
March 2026

Resilient, efficient Thermal Energy Storage for C&I buildings

CleanTech · Rochester$25K Non-equity Assistance
Aker Technologies
March 2022

Aker is an agriculture data company providing crop intelligence and in-season analytics.

Agriculture · Creve Coeur$2.4M Venture - Series Unknown
Capro-X
March 2025

Capro-X is an ag-tech company that improves the sustainability in the dairy industry.

Agriculture · IthacaSeed
OxEon Energy
March 2024

OxEon Energy is a cleantech start-up that works on alternative energy storage, synthetic fuels, and high purity gas production.

Clean Energy · North Salt Lake$36.3M Grant
Big Blue Technologies
March 2024

Big Blue Technologies is developing a thermal magnesium metal production process.

Mineral · Denver$400K Grant
Allumia
February 2023

Allumia funds, designs, install and maintain a lighting upgrade for commercial and industrial customers.

Energy · SeattleConvertible Note
Ecotone Renewables
February 2025

Ecotone Renewables make sustainable food and agriculture systems more accessible and prevalent outside the industrial scale.

Agriculture · Pittsburgh$208K Equity Crowdfunding
Enersion
February 2023

Enersion is a researcher and developer of cooling, heating, and electricity products.

Consumer Applications · TorontoNon-equity Assistance
Simusolar
February 2025

Simusolar increases rural prosperity by selling and financing productive equipment to farmers and small businesses.

Agriculture · San FranciscoNon-equity Assistance
Uplift Solar
February 2022

Uplift Solar is a manufacturer and producer of smart solar panels and renewable solar energy for easier installation and shade tolerance.

Electronics · Las VegasVenture - Series Unknown
RenewCO2
August 2025

RenewCO2 is a research company that develops processes for converting CO2 into polymers and chemicals.

Chemical · Cranford$4.2M Seed
Radical Plastics
May 2025

Radical Plastics is a radical solution to plastic pollution.

Plastics and Rubber Manufacturing · Beverly$1.0M Venture - Series Unknown
GRAIN Ecosystem
April 2025

GRAIN Ecosystem is a start-up that addresses global warming and accelerates decarbonization.

Environmental Consulting · Quincy$880K Seed
Muon Vision
January 2025

Muon Vision specializes in nuclear imaging sensors, IoT, slope stability, and data mining services.

Mining · Cambridge$2.5M Seed
Enzinc
December 2024

Enzinc is an advanced battery developer that offers rechargeable zinc-air batteries.

Battery · Richmond$8.3M Series A
Renegade Plastics
December 2024

Renegade Plastics offers an alternative to PVC-coated fabrics for a circular plastics economy in industry and agriculture.

AgTech · Golden$2.0M Seed
ACUA Ocean
November 2024

We design, develop and deploy hydrogen- powered uncrewed surface vessels (H-USVs)

Internet of Things · Plymouth$1.9M Pre-Seed
Tidal Metals
September 2024

Tidal Metals produces decarbonized magnesium metal from seawater and desalination waste to reduce salinity.

Mining · Princeton$8.5M Seed
OpConnect
September 2024

OpConnect specializes in EV charging solutions, dedicated to reducing greenhouse gas emissions through transportation electrification.

Electric Vehicle · Tigard$5.3M Venture - Series Unknown
Halo Industries
July 2024

Halo Industries develops new laser-based hardware solutions for the manufacturing of substances.

Manufacturing · Santa Clara$80.0M Series B
Camus Energy
February 2024

Camus provides a grid orchestration platform to help electric utilities operate and build a reliable, affordable, and zero-carbon grid.

CleanTech · San Francisco$10.0M Series A

Where Cleantech Open invests

Energy7
Renewable Energy5
Agriculture4
Manufacturing4
AgTech3
CleanTech3

About Cleantech Open's portfolio

How many companies has Cleantech Open invested in?

Cleantech Open has invested in 227 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Cleantech Open invest in?

Cleantech Open's top investment sectors include Energy, Renewable Energy, Agriculture, Manufacturing, AgTech. The firm invests across 61 different industry categories.

What is Cleantech Open's largest investment?

Among tracked funding rounds, Halo Industries received $80.0M in a Series B round. Cleantech Open's total known invested capital is $747.8M.

What is the average investment size for Cleantech Open?

Cleantech Open's average investment size is $4.4M across its portfolio of 227 companies.

What are Cleantech Open's most recent investments?

Recent Cleantech Open portfolio additions include Elateq, Clean Valley Bio-filtration Technologies, Scalvy, MicroEra Power, Aker Technologies. These companies were founded in 2020 or later.

Reach the founders behind these 227 companies
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