Global Climate Solution Stocks

A comprehensive list of publicly listed companies that generate >50% of their revenue from climate solutions that are headquartered in the following seven major global regions.

African Union ASEAN (SE Asia)CELAC (LatAm + Carib)China European Union SAARC (South Asia)United States

Note that we provide this list as a publicly available resource solely for the purpose of education. This list was updated in May of 2026 By James Regulinski, CIO & CCO at Carbon Collective.
It is not updated on a regular cadence.

Company

HQ country

Solution type

Index status

Description

EEMS Italia SpA

HQ country:

🇮🇹 Italy

Solution type:

Solar, PVs

Clean energy

Index status:

Lacks Information

EEMS Italia is an Italian semiconductor firm that is signaling a transition into providing solar panels, but they do not seem to have updated their materials or provided new financials since our 2023 review, so we exclude them for lacks information.

ESI S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Solar, PVs

Clean energy

Index status:

Pure Play

ESI is a renewables developer based in Italy that has solar, wind, min-hydro, and energy storage projects in Africa and Italy.

Ariston Holding N.V.

HQ country:

🇮🇹 Italy

Solution type:

Heat Pumps

Building efficiency

Index status:

Passes Revenue Filter

Ariston Holdings generates a majority of its revenue from selling high-efficiency heat pump heaters for water and air again in our 2025 review.

Glass To Power S.P.A.

HQ country:

🇮🇹 Italy

Solution type:

Solar, PVs

Clean energy

Index status:

Pure Play

Glass to Power is looking to commercialize a lab-based innovation that would enable normal windows to generate solar power without degrading the internal experience, which we found again in our 2025 review.

Seri Industrial S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Recycling

Circular economy

Index status:

Passes Revenue Filter

Seri Industrial is an Italian company that specializes in recycling plastic for a variety of uses, largely in the battery space.

Alerion Clean Power S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Solar, PVs

Clean energy

Index status:

Pure Play

Alerion is a pure play solar and wind developer that builds and owns wind projects in Italy

Lemon Sistemi S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Solar, PVs

Clean energy

Index status:

Pure Play

Lemon Sistemi is an Italian solar developer that builds and operates solar farms.

Enel SpA

HQ country:

🇮🇹 Italy

Solution type:

Electrical Utility

Clean energy

Index status:

Failed Revenue Filter

Enel is an Italian electrical utility that generated about 3.5x more power from fossil fuels than renewables, so we exclude them.

ACEA S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Electrical Utility

Clean energy

Index status:

Lacks Information

ACEA is an Italian electrical utility that serves Rome. They do not disclose how much of their electricity comes from their thermal plants vs. zero carbon, so we exclude them

Saipem SpA

HQ country:

🇮🇹 Italy

Solution type:

Wind Power

Clean energy

Index status:

Failed Revenue Filter

Saipem is an Italian infrastructure construction company that generates a majority of its revenue from non climate solution projects like pipelines and only a minority from the offshore wind industry.

Espe S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Solar, PVs

Clean energy

Index status:

Passes Revenue Filter

Espe is an Italian manufacturer and producer of solar systems and mini-wind power turbines, both climate solutions.

Askoll EVA SpA

HQ country:

🇮🇹 Italy

Solution type:

Electric Two Wheelers

Clean transportation

Index status:

Pure Play

Askoll specializes in selling electric cars and e-bikes and pedal assisted scooters in Italy.

A2A S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Electrical Utility

Clean energy

Index status:

Failed Revenue Filter

A2A is an Italian power producer that generates most of its revenue from selling fossil-fuel based electricity.

Maire S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Carbon Management

Land sinks

Index status:

Failed Revenue Filter

MAIRE is an Italian construction firm that specialize in projects for the fossil fuel industry as well as power plants. They generate about 7% of their revenue from green ammonia, but that falls far short of our threshold.

Green Oleo S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Recycling

Circular economy

Index status:

Pure Play

Green Oleo takes wasted oils and fats from the food processing industry and turns them into soaps and valuable industrial products

Cogefeed S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Solar, PVs

Clean energy

Index status:

Passes Revenue Filter

Cogefeed is a renewable energy developer and building retrofit construction firm specializing in solar, hydro, and energy retrofits. They also do seismic retrofits, which is not a climate solution which is why they are not a pure play.

Iniziative Bresciane S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Hydropower

Clean energy

Index status:

Pure Play

Iniziative Bresciane is an Italian provider of micro-hydropower plants that enable power to be generated on small streams in remote areas.

Ecosuntek S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Solar, PVs

Clean energy

Index status:

Pure Play

Ecosuntek is an Italian renewable energy developer with solar and wind projects in Italy and Romania

Haiki+ S.p.a

HQ country:

🇮🇹 Italy

Solution type:

Methane Capture

Clean energy

Index status:

Passes Revenue Filter

Haiki is an Italian waste management company that captures methane from its landfills and also engages in multiple forms of recycling to further enable the circular economy.

Frendy Energy S.p.A.

HQ country:

🇮🇹 Italy

Solution type:

Hydropower

Clean energy

Index status:

Pure Play

Frendy Energy is a hydropower developer that is based and operates in Italy.