The global carbon dioxide removal (CDR) market is experiencing an upward momentum, one that has been especially evident in the last two years, which have been marked by bolder investments and deals with suppliers.
A 2024 wrap-up report by durable carbon removal platform CDR.fyi pointed to growing purchases that peaked at nearly 8 million tonnes that year, while deliveries reached 318.6K tonnes.
So far, 2025 has built on this progress, with a fairly recent CDR.fyi market review indicating nearly 15 million tonnes of contracted CDR by May, signaling a strong pace that might well continue for the rest of the year, given looming net-zero deadlines and the SBTi greenlighting CDR in the draft of its V2 Corporate Net-Zero Standard.
This monumental leap has been driven by innovative companies who managed to attract buyers’ attention with their high-integrity and high-impact solutions, helping the carbon removal market spur into a pulsating ecosystem.
In this article, we take a look at the top 10 carbon dioxide removal suppliers listed on the current leaderboard on the CDR.fyi platform, shedding light on the trailblazing companies that have muscled this milestone CDR advancement.
- Exomad Green
- Aperam BioEnergia
- Varaha
- Wakefield Biochar
- Carboneers
- Pacific Biochar
- Freres Biochar
- CarbonCure
- Planboo
- Running Tide
Exomad Green
This Bolivia-based biochar producer emerges as the absolute leader in CDR supply to date, totalling an astounding 1,763,995 tons sold and 150,820 tons delivered so far.
One of the company’s landmark sales was a deal with Microsoft that also made history as the largest-ever biochar agreement, standing at 1.24M tonnes.
This summer, Exomad launched construction work on its flagship biochar production facility in Bolivia’s Guarayos Region, a site that is slated to become the largest of its kind globally once operational in mid-2026.
The company has secured purchase agreements with various leading industry players, including Japan’s Mitsui O.S.K. Lines (MOL), Supercritical, NextGen, Carbonfuture, Swiss Re, Senken, and others.
Through these agreements, Exomad has committed to delivering carbon removal credits verified by the Puro.Standard, and to be able to meet its commitment, the company is expanding its production capacity with two new sites in Bolivia, projected for completion by 2027.
Relevant: Exomad Green Starts Work On The World’s Largest Biochar Facility
Aperam BioEnergia
The second-largest CDR supplier on the current CDR.fyi leaderboard is Brazil-based biochar company Aperam BioEnergia.
Positioned in the region of Minas Gerais, the company is an operating unit of global stainless steel company Aperam, and it produces charcoal from both FSC-certified eucalyptus plantations and native forests.
The residue from these forest sites is converted to biochar, which then gets dispersed on soil, where it absorbs atmospheric CO2 while improving the soil’s nutrient absorption and water retention capacity.
Its carbon removal credits from these activities are certified under the Puro Standard and issued as CORCs (Carbon Removal Certificates). According to the Puro platform, the biochar company has the ability to produce ~40,000 tonnes of carbon removal on an annual basis.
To date, Aperam BioEnergia has sold 121,183 tonnes of CDR, with 89,298 of those tonnes successfully delivered so far. Its client list includes financial giants like the Nasdaq exchange, Swedish bank SEB, and Swiss private bank Pictet.
While reports have emerged of local environmental concerns around this project, the company, certified by relevant market bodies, has shared that it plans to expand its operations in Brazil.
Varaha
Varaha takes the last spot in the top 3 carbon removal suppliers on the CDR.fyi platform.
Established in India, its mission is to develop CDR initiatives across Asia, helping smallholder landowners adopt sustainable agricultural practices and build resilience amidst a changing climate.
Its portfolio of projects spans across India, Nepal, Bangladesh, and Kenya, and it covers a number of CDR methods, including regenerative agriculture, afforestation, biochar, and enhanced rock weathering.
The company uses a comprehensive digital MRV process to track the progress of operations, and its biochar credits are issued under the Puro Standard. The CDR.fyi leaderboard reports that its sales so far stand at 195,364 tonnes, with 83,361 of those tonnes delivered.
Since its market debut in 2022, Varaha has locked in multimillions in financial support, with the latest investment coming from UK-based Conductor Capital, followed by a major collaboration with climate platform Patch.
The company made waves on the voluntary carbon market with a major agreement signed with Google in the beginning of 2025 for the delivery of 100,000 tons of biochar by 2030.
Going forward, Varaha’s ambition is to scale operations to not only tackle climate change but also to improve the livelihoods of farmers across Asia.
Wakefield Biochar
Family-owned Wakefield was founded by two twin brothers who wanted to honor the memory of their late father, a chemical engineer and avid gardener, who introduced them to biochar.
Established in 2014, the company specializes in processing waste from wood to create biochar, generating carbon removal credits certified under the Puro Standard.
To secure feedstock for its product, Wakefield partners with paper mills that supply it with virgin pine wood biomass that gets transformed into biochar at the company’s landmark pyrolysis facility in Valdosta, Georgia.
The stats on the CDR.fyi platform indicate that so far, the company has sold 57,841 tonnes of biochar-based carbon removal, surpassing this target by delivering 58,033 tonnes and becoming the only supplier on this list to have provided credits beyond its commitment.
In 2024, the company expanded its operational capacity by launching a second pyrolysis facility, an achievement partially made possible through the sale of carbon removal credits.
Wakefield’s list of CDR clients includes leading names like JP Morgan, Swiss Re, Tide Platform, and IMC Trading, who have all purchased CORCs from the Georgia-based company.
Carboneers
Set on a mission of removing one million tons of carbon dioxide by 2028, Netherlands-based Carboneers supports projects located in the Global South by providing smallholder farmers in those regions with investments from the Global North, along with technology and education on how to turn agricultural waste into biochar.
As part of this mission, the company has sold 123,210 tonnes of CDR so far, with deliveries currently standing at 50,515 tonnes.
Its portfolio of projects includes four different initiatives located in Ghana and India, where the company has established a collaborative relationship with a network of 27,372 farmers.
Carboneers recently made headlines with a biochar CDR purchase by Milkywire, where the credits are to be delivered from its joint project with Planboo currently under development in Ghana.
Through this deal, Milkywire fortified its support for the two partnering biochar companies, as before that, Carboneers and Planboo had also been selected as one of the CDR purchase winners via Milkywire’s Climate Transformation Fund (CTF).
To bring its biochar credits closer to buyers, Carboneers has partnered with CDR portfolios company Zopeful, and besides Milkywire, its list of purchasers also includes Klimate.co and other undisclosed buyers.
Pacific Biochar
U.S. company Pacific Biochar is a CDR supplier that uses forest biomass from high fire hazard areas in California as feedstock for its biochar production line.
Its environmental approach is two-pronged: help with forest management where the biochar is sourced and improve soil quality where the biochar is applied.
The company has established partnerships with the largest agricultural companies in California, sharing equipment and trucking with them and providing them with its biochar product that gets applied to soils, where it boosts the ecosystem while removing atmospheric CO2 emissions.
Pacific Biochar designs, engineers, and implements modifications to biomass power plants that it aims to position near areas surrounded by forests that pose a serious fire risk.
In 2020, the company partnered with Carbonfuture and started selling its first biochar carbon removal credits, locking in purchases with buyers like Microsoft only two years after its voluntary carbon market debut.
Fast-forward to mid-2025, the company has sold 42,159 tonnes of carbon dioxide removal and completed almost all of its commitments with 39,659 tonnes of CDR delivered.
Freres Biochar
Freres is a family-owned engineered wood company from Oregon that uses biomass cogeneration to simultaneously create heat, electricity, and biochar.
Located in the city of Lyons, its cogeneration facility called Evergreen BioPower LLC produces enough electricity on a yearly basis to power approximately 5,000 homes and provide heat for the project’s manufacturing facilities.
The feedstock for the facility comes from locally sourced biomass that gets combined with waste from the company’s production process.
In 2021, Freres partnered with Puro.earth to offer buyers biochar carbon removal credits from its multifaceted business operations.
Since then, the company has sold and delivered 26,498 tonnes of carbon dioxide removal, with its crediting period with Puro.earth ending in November of 2024.
CarbonCure
Canada-based CarbonCure is the only CO2 utilization company listed among the top 10 suppliers on the current CDR.fyi leaderboard.
Specialized in carbon mineralization technology, CarbonCure injects captured CO2 into fresh concrete during manufacturing, where it reacts with cement to transform into a mineral that fortifies the concrete product.
This process offers both a pathway for durably storing CO2 and a solution for decarbonizing the construction industry. Recognizing these values, CarbonCure has partnered with hundreds of concrete producers around the world to scale the impact of this solution.
The company, winner of a multimillion-dollar award by NRG COSIA Carbon XPRIZE, follows a Verra-approved carbon mineralization methodology to deliver transparent and high-integrity carbon credits on the voluntary market.
In 2022, CarbonCure hit the milestone of inking the largest-to-date carbon mineralization CDR deal with Ripple and Invert Strike, valued at $30 million.
So far, the CDR.fyi leaderboard numbers show that the company has contracted 36,979 tonnes of carbon removal with buyers, with 23,191 tonnes of those commitments delivered by Aug 1st, 2025.
By 2030, CarbonCure hopes to be able to fulfill its ambition of reaching an annual carbon reduction and removal volume of 500 million metric tons.
Founded and powered by a curated team of nature-aware professionals with expertise across a wide range of sectors, Planboo has a growing network of biochar projects located in tropical regions.
Through its work, the company is helping fight global warming via nature-based carbon removal, while helping communities in the most climate-change-vulnerable regions cope with a new reality of harsher environmental conditions.
Currently, Planboo operates seven projects positioned in six tropical countries that produce biomass from a variety of feedstocks, including trimmings from coffee, cocoa, cotton, bamboo, acacia bush, and maize and cob.
To track the impact of its initiatives, Planboo employs an in-house MRVin technology that ensures transparency and high-quality reporting and sharing of progress.
As a result of this work, Planboo generates premium carbon removal credits that have attracted buyers like Klarna, Cnaught Customers, WRLD Foundation, and others.
Recently, its Ghana-based shared biochar initiative with Carboneers secured an offtake agreement with sustainability impact company Milkywire.
According to the CDR.fyi leaderboard ranking, Planboo takes the ninth position among the top 10 CDR suppliers, having sold 34,298 tonnes to date and delivered 22,908 tonnes.
In the future, the company plans to expand its presence in the Global South with new biochar carbon removal projects.
Running Tide
Taking the last spot of the top 10 CDR suppliers on the CDR.fyi leaderboard is Running Tide, an ocean carbon removal company that actually ceased operations back in June 2024, citing a lack of demand for its credits on the voluntary carbon market as the reason for its closure.
During its seven years of existence, the company managed to secure more than $50 million from investors for its initial carbon sequestration approach that was powered by macroalgae and that later in Running Tide’s trajectory transitioned into sinking wood biomass.
Running Tide was one of the carbon removal pioneers that employed a science-based approach and made its framework protocol for open ocean carbon removal publicly available, setting the stage for the emergence of other companies specialized in this field.
With offices in Portland, Maine, and Iceland, Running Tide employed more than 100 people at one point, coordinating its operations with a large network of academic partners.
The CDR.fyi leaderboard numbers state that the company has sold 28,302 tonnes of its ocean-based carbon removal to buyers like Islandbanki, Passion Capital, Georgian, and others.
Out of these contracted volumes, Running Tide has delivered 22,880 tonnes so far.
Read more: Running Tide Shuts Down Citing Lack Of Demand From The Voluntary Market
