Alternatives to Spark Cleantech

Develops, owns, and operates industrial-scale facilities producing green hydrogen derived e-Fuels.

Electra is decarbonizing the iron and steel industry with clean-iron electrowinning technology.

Direct air capture startup producing CO2 and hydrogen for e-fuels and negative emissions.

A digital marketplace connecting businesses with vetted renewable energy providers, financing, and expertise.

Carbon capture and utilization technology for industrial emissions.

Carbon capture and utilization technologies for industrial emissions.

Developing novel catalysts and processes for sustainable nitrogen fertilizer production.

Direct air capture technology for atmospheric CO2 removal.

A platform simplifying marine fuel procurement with a focus on transparency, sustainability, and financing.

Nuclear energy startup developing small, high-temperature reactors for AI data centers and industrial applications.

Climate-tech startup making Asia's rice farming more water-resilient by combining satellite imagery, AI, and field operations to reduce water usage and methane emissions.

Achieve true economic industrial decarbonization through advanced waste-to-value solutions.

Crusoe uses stranded energy to power high-performance computing for AI and blockchain.

Green materials platform using patented electroreduction to produce pure metals with zero carbon emissions.

Developing pollution-free metal processing technology.

Membrane technology for carbon capture, hydrogen, and natural gas.

Platform for home and vehicle electrification, offering personalized recommendations and supplier connections.

Industrial carbon capture technology company offering modular CycloneCC systems that retrofit onto existing industrial emitters.

A company focused on direct air carbon capture projects.

Carbon removal services using enhanced rock weathering to combat climate change.

Develops and manufactures rotor sails for wind-assisted propulsion on ships.

Canadian climate solutions company developing direct air capture technology to remove CO2 from the atmosphere.

Calgary-based startup developing technology to convert captured CO2 into valuable building materials.

Industrial-scale production of synthetic aviation fuels from CO2 and water.

Developing high-integrity coastal ecosystem restoration projects.

Direct air capture technology to remove CO2 from the atmosphere and store it permanently.

Develops a novel, low-cost solvent-based carbon capture technology to decarbonize industrial emissions.

Develops, finances, builds, owns, and operates biomethane and green hydrogen plants for industrial decarbonization.

Amogy unlocks ammonia's potential as a clean energy source with proprietary reforming technology.

Energy technology company focused on innovative solutions.

Revolutionizing battery recycling for a circular future in Europe.

Cleanwatts is a company focused on renewable energy, specifically in the development and management of renewable energy communities.

Helping farmers earn carbon credits through regenerative agriculture and nature-based solutions across South Asia.

Allye Energy is developing a novel approach to carbon capture and utilization.

Green-tech startup building the world's largest green-steel plant.

HotGreen Solutions is a startup focused on sustainable energy solutions, particularly in solar and energy efficiency.

Digital platform connecting ecosystem players to solve environmental challenges using AI.

Electrifying the global steel industry with innovative technology.

Airovation Technologies develops patented air purification and carbon capture solutions based on advanced chemical processes to convert CO2 into valuable chemicals.

Developing a novel process for green ammonia production to decarbonize agriculture and energy.

Aemetis is a renewable fuels and biochemicals company focused on low-carbon solutions like RNG and SAF.

German provider of integrated renewable energy solutions for homeowners, offering solar panels, battery storage, heat pumps, and EV charging.

Electrified plasma technology to recycle CO2 and hydrocarbons into circular carbon molecules.

Industrial company in hydrogen production and separation solutions.

Advanced biofuels company focused on accelerating growth.

Electric vehicle technology company specializing in zero-emission buses and charging infrastructure.

Developing a breakthrough, low-cost technology to produce renewable hydrogen using sunlight and any source of water.

Global climate solutions provider helping organizations achieve net-zero emissions.

Converts carbon emissions and waste into green liquid fuels and chemicals.

CarbonClick provides a platform for businesses to offset their carbon emissions.

Greencognition explores green technology solutions, integrating AI for sustainable innovations.

Fleetzero is developing a platform to decarbonize the shipping industry through electrification and alternative fuels.

Industrial electrolysis technology for green hydrogen and e-fuels production.

Anaergia is a global leader in anaerobic digestion and renewable natural gas solutions.

Developing low-carbon molecules.

Global standard for high-integrity conservation and restoration projects on carbon markets.

Global commodity data and analytics platform for ESG and energy markets.

A leading renewable energy and smart energy company.