Top 76 Carbon Capturing and Gas Recycling startups

Jun 14, 2025 | By Marjana Bačić

These startups develop new carbon capturing technologies such as direct air capture, bioenergy with carbon capture and storage, mineral carbonation for permanent storage, electrochemical CO2 reduction, sorbent-based capture systems, membrane separation technologies, etc.
1
Country: Finland | Funding: $76.7M
Solar Foods has developed a process that uses renewable energy and the carbon dioxide polluting our atmosphere to create an alternative protein it calls Solein.
2
Country: UK | Funding: £41.3M
Satellite Vu develops “the world’s thermometer”: a satellite constellation capable of monitoring thermal emissions around the world.
3
Country: UK | Funding: $48.2M
4.01 is a company that specializes in eliminating CO2 from the atmosphere by mineralizing it in peridotite.
4
Country: Estonia | Funding: €8.5M
UP Catalyst uses molten salt carbon capture and electrochemical transformation to reprocess CO2 and produce valuable carbonaceous nanomaterials that can be used in battery and supercapacitor technologies.
5
Country: UK | Funding: £4.5M
Developing novel technology for carbon sequestration into concrete
6
Country: New Zealand | Funding: $1.1B
LanzaTech has developed a novel gas-liquid fermentation process that produces fuels and chemicals from gas resources.
7
Country: USA | Funding: $4.7M
Ionada develops, manufactures, and markets post combustion carbon capture systems to reduce greenhouse gas emissions.
8
Country: Switzerland | Funding: $69M
Neustark is a concrete producer in bern using wastewater treatment plant by turning CO2 into minerals.
9
Country: USA | Funding: $55.1M
Spiritus is a climate tech company developing direct-air-capture technology.
10
Country: USA | Funding: $22M
Noya is reversing climate change and pulling CO2 out of the sky by retrofitting existing pieces of equipment to capture carbon.
11
Country: USA | Funding: $4.3M
Mitico offers accessible carbon capture technology and services to mitigate the impact of industrial emissions on people and the climate:
12
Country: USA | Funding: $204.3M
Heirloom Carbon develops technology called carbon mineralization, to help minerals absorb CO2 from the ambient air in days, rather than years. By combining the best of engineering and nature, we can offer the most cost-effective and scalable Direct Air Capture solution in the world.
13
Country: USA | Funding: $108.1M
Air Company turns carbon dioxide into things like perfume, vodka, hand sanitizer and aviation fuel
14
Country: Australia | Funding: $5M
MCi Carbon has created a scalable carbon platform technology that safely captures and converts industrial CO2 emissions.
15
Country: USA | Funding: $3.5M
CarbonZero.Eco is an ag-tech company that tackles regenerative agriculture and climate change through Biochar.
16
Country: Canada | Funding: $504M
Svante is a carbon capture and removal solutions provider specializing in the development and manufacturing of novel solid sorbents.
17
Country: USA | Funding: $844.4M
Twelve is a new kind of chemical company built for the climate era. We make essential products from air, not oil.
18
Country: Germany | Funding: €4.8M
Cyclize turns plastic waste and CO2 into drop-in syngas, a mix of carbon monoxide and hydrogen, using a patented plasma reactor to replace natural gas.
19
Country: USA | Funding: $204.3M
Heirloom is a provider of direct air capture technology to enhance the natural process of CO2 absorption from the atmosphere.
20
Country: Switzerland | Funding: $784.3M
Climeworks engages in capturing CO2 from the air via commercial carbon dioxide removal technology.
Editor: Marjana Bačić
Marjana Bačić is a senior editor for RecyclingStartups. She has has more than 5 years experience covering the recycling industry. Marjana graduated from University of Belgrade, where she edited Recycling and Sustainable Development Journal. She has helped several non-profit organizations dedicated to promoting environmental education and sustainability. She also participates in beach clean-up initiatives and advocates for sustainable practices in local businesses. In her free time, Marjana enjoys hiking in the scenic Montenegrin countryside, practicing yoga for mindfulness, and experimenting with plant-based recipes in her kitchen. You can contact Marjana at marjanabacic(at)recyclingstartups(dot)com