Top 10 Carbon Capture Companies in London

Did you know that the UK has committed to achieving net zero carbon emissions by 2050, with carbon capture technology expected to play a critical role in reaching that goal?

London has rapidly emerged as a global hub for climate tech innovation, particularly in the field of carbon capture. From industrial-scale solutions to cutting-edge direct air capture startups, the city hosts some of the most forward-thinking companies tackling carbon emissions head-on.

For businesses, policymakers, and environmentally conscious individuals, understanding the landscape of carbon capture companies in London is essential. This guide explores the top players, how their technologies work, and why they matter for the UK’s sustainable future.

What Are Carbon Capture Companies and Why Do They Matter in the UK?

Carbon capture companies develop technologies that remove carbon dioxide (CO₂) from the atmosphere or prevent it from being released during industrial processes.

• Carbon capture helps reduce emissions from heavy industries like cement, steel, and energy.
• It is a key component of the UK’s legally binding net zero strategy.
• Technologies include Carbon Capture and Storage (CCS) and Direct Air Capture (DAC).

Why It Matters?

• Reduces environmental impact without shutting down essential industries
• Supports clean energy transition
• Helps businesses comply with UK environmental regulations

Why Is London a Hub for Carbon Capture and Climate Tech?

London’s ecosystem makes it an ideal base for carbon capture companies.

Key Reasons:

• Strong government support for climate initiatives
• Access to investment and venture capital
• Presence of top research institutions
• A growing network of climate tech startups

Confirmed Insight:

London is consistently ranked among the top cities globally for green innovation and climate technology funding.

Top 10 Carbon Capture Companies in London (2026 List)

1. Carbon Clean – Leading Modular Carbon Capture for Industry

Carbon Clean is widely recognised as one of the most commercially advanced carbon capture companies in London, delivering innovative modular solutions tailored for heavy industries. The company focuses on making carbon capture more accessible and cost-effective for sectors that are traditionally difficult to decarbonise.

Its advanced engineering approach enables seamless integration into existing industrial infrastructure without major disruptions. By prioritising scalability and efficiency, Carbon Clean helps businesses significantly reduce emissions while maintaining operational productivity. This makes it a key player in supporting the UK’s transition towards net zero emissions.

• Technology: CycloneCC (Rotating Packed Bed system)
• Key Advantage: Reduces equipment footprint by up to 10x and capital costs by ~50%
• Best For: Steel, cement, and industrial retrofitting in space-constrained environments

2. Mission Zero Technologies – Direct Air Capture Innovation

Mission Zero Technologies is one of London’s most promising carbon capture startups, focusing on advancing Direct Air Capture (DAC) through innovative electrochemical processes. The company is dedicated to removing carbon dioxide directly from the atmosphere in a highly energy-efficient and scalable way.

Its technology is designed to operate without the high heat or water requirements seen in traditional DAC systems, making it more sustainable. By targeting high-purity carbon removal, Mission Zero supports emerging industries such as sustainable aviation fuel production. This positions the company as a key contributor to the UK’s long-term carbon reduction strategy.

• Technology: Electrochemical Direct Air Capture (DAC)
• Key Advantage: Uses significantly less energy and requires no water compared to traditional systems
• Best For: High-purity CO₂ removal for sustainable fuels and atmospheric carbon reduction

 

3. Seabound – Maritime Carbon Capture Solutions

Seabound is an innovative London-based startup focused on reducing emissions in the global shipping industry, one of the hardest sectors to decarbonise. The company develops onboard carbon capture systems that can be retrofitted onto existing vessels without major redesign. Its technology captures carbon dioxide directly from ship exhaust gases during operation, making it highly practical for real-world use.

By enabling shipping companies to meet international environmental targets, Seabound plays a crucial role in maritime sustainability. This approach helps bridge the gap between current fuel usage and future zero-emission shipping solutions.

• Technology: Calcium Looping (using quicklime to capture CO₂ from ship exhaust)
• Key Advantage: Retrofit-ready modular system suitable for existing cargo ships
• Best For: Shipping companies aiming to meet IMO 2030 and 2050 decarbonisation targets

4. Carbon Re – AI-Powered Carbon Reduction for Heavy Industry

Carbon Re is a London-based climate tech company that uses advanced artificial intelligence to reduce industrial carbon emissions. Instead of capturing carbon after it is produced, the company focuses on preventing emissions through smarter operational efficiency.

Its AI-driven platform analyses complex industrial processes and provides real-time optimisation recommendations. This allows manufacturers, particularly in cement and steel industries, to significantly cut fuel consumption and emissions. By combining deep tech with practical application, Carbon Re offers an immediate and scalable pathway to decarbonisation.

• Technology: Delta Zero AI platform (Deep Reinforcement Learning)
• Key Advantage: Can reduce emissions and fuel consumption by up to 20%
• Best For: Heavy industries seeking immediate, software-driven emission reductions

5. BeZero Carbon – Carbon Ratings and Climate Intelligence

BeZero Carbon is a London-based climate intelligence company that brings transparency and credibility to the global carbon markets. Rather than capturing carbon directly, it evaluates and rates carbon removal and offset projects to help organisations make informed decisions.

Its data-driven approach ensures that businesses invest in high-quality and reliable carbon credits. By acting as an independent ratings agency, BeZero Carbon strengthens trust in carbon trading and climate finance. This makes it an essential player in scaling effective carbon removal solutions across the UK and beyond.

• Technology: Risk-based carbon credit rating system and climate data analytics
• Key Advantage: Provides independent, science-backed ratings to improve trust in carbon markets
• Best For: Investors and organisations seeking high-quality carbon removal and offset projects

6. Origen – Low-Cost Direct Air Capture Using Limestone

Origen is an innovative London-based carbon capture company focused on scaling Direct Air Capture (DAC) using abundant natural materials like limestone. The company has developed a unique process that captures carbon dioxide through a cyclical chemical reaction, making it both efficient and cost-effective.

By leveraging widely available minerals, Origen aims to make large-scale carbon removal more accessible and economically viable. Its approach is particularly suited for gigaton-scale deployment, addressing long-term climate goals. This positions Origen as a promising player in the future of atmospheric carbon removal.

• Technology: Oxy-calcination process using limestone for Direct Air Capture
• Key Advantage: Utilises low-cost, abundant materials for scalable carbon removal
• Best For: Large-scale atmospheric CO₂ removal with cost-efficient mineral-based systems

7. Cur8 (cur8.earth) – Carbon Removal Portfolio Platform

Cur8 is a London-based carbon removal platform that helps organisations access high-quality and scientifically vetted carbon removal solutions. The company focuses on building diversified portfolios that reduce risk while ensuring long-term environmental impact.

By working with a network of trusted carbon removal providers, Cur8 simplifies the process for businesses looking to offset emissions responsibly. Its strong emphasis on permanence ensures that selected solutions store carbon for over 1,000 years. This makes Cur8 a reliable partner for companies aiming to meet sustainability and net zero commitments.

• Technology: Carbon removal portfolio platform with scientific validation and risk assessment
• Key Advantage: Focuses on high-integrity, long-term carbon storage solutions (1000+ years)
• Best For: Businesses seeking diversified and reliable carbon removal investment strategies

8. Shell (Global CCS Division) – Large-Scale Carbon Capture Infrastructure

Shell is a global energy leader with a strong presence in London, driving some of the world’s largest carbon capture and storage (CCS) projects. The company focuses on capturing carbon emissions from industrial sources and safely storing them underground at scale.

Its advanced technologies and infrastructure enable large-volume carbon management across multiple sectors. Shell’s long-term investment in CCS plays a significant role in supporting the UK’s net zero ambitions. This makes it a key player in developing large-scale, reliable carbon capture solutions.

• Technology: CANSOLV (amine-based carbon capture technology)
• Key Advantage: Proven large-scale deployment with global project experience
• Best For: Industrial clusters and offshore carbon storage infrastructure

10. Aker Carbon Capture – Engineering Carbon Capture at Scale

Aker Carbon Capture is a leading engineering company supporting large-scale carbon capture projects across the UK and Europe. With a strong presence in London, the company focuses on delivering standardised and modular solutions for industrial emitters.

Its advanced systems are designed to be flexible, efficient, and easy to deploy across various sectors. Aker plays a key role in major UK initiatives such as Net Zero Teesside and the Humber cluster. This positions the company as a critical enabler of scalable carbon capture infrastructure.

• Technology: Just Catch™ modular carbon capture units
• Key Advantage: Standardised, containerised systems for faster deployment and scalability
• Best For: Municipal facilities and medium-sized industrial plants

 

Types of Carbon Capture Technologies Used by London Companies

Real-World Example: How Carbon Capture Impacts Everyday Life?

Imagine a cement factory in the UK. Cement production is one of the largest sources of CO₂ emissions.

By using technology from companies like Carbon Clean or Carbon Re:

• Emissions can be reduced without shutting down production
• Infrastructure projects (like housing and roads) remain sustainable
• Consumers benefit from lower environmental impact without higher costs

Challenges and Limitations of Carbon Capture Companies

• High initial costs
• Energy-intensive processes
• Limited infrastructure for CO₂ transport and storage

Proposed Developments:

• Government subsidies and incentives
• Advances in DAC efficiency
• Expansion of UK carbon storage networks

Common Misconceptions:

•  “Carbon capture solves climate change alone”
•  Reality: It is one part of a broader solution, alongside renewable energy

Future of Carbon Capture Companies in London and the UK

The future looks promising, with:

• Increased investment in climate tech startups
• Expansion of carbon capture clusters (e.g., Teesside)
• Stronger policy frameworks supporting CCS

London is expected to remain a global leader in carbon capture innovation.

Conclusion

Carbon capture companies are no longer optional they are essential.

As the UK accelerates towards its net zero goals, carbon capture companies in London will play a vital role in:

• Reducing industrial emissions
• Supporting sustainable growth
• Driving innovation in climate technology

For businesses and individuals alike, understanding these companies means staying informed about one of the most important climate solutions of our time.

FAQs About Carbon Capture Companies in London

Are carbon capture companies effective in reducing emissions?

Yes, they significantly reduce emissions, especially in hard-to-decarbonise industries like cement and steel.

Is carbon capture widely used in the UK?

It is growing rapidly, with several major projects underway and government support increasing.

What industries benefit the most from carbon capture?

Heavy industries such as cement, steel, oil & gas, and shipping benefit the most.

Is direct air capture better than traditional CCS?

Both serve different purposes—DAC removes existing CO₂, while CCS prevents emissions at the source.

Are carbon capture companies expensive to implement?

Yes, currently costs are high, but they are expected to decrease with innovation and scaling.

Can carbon capture replace renewable energy?

No, it complements renewable energy but cannot replace it entirely.

How can businesses in London work with carbon capture companies?

They can partner for emission reduction projects or invest in carbon removal programmes.