Company lists · Data refreshed September 2026
Top 25 Biochar companies worldwide
RevenueBase identified 763 biochar companies worldwide as of September 2026 and tracks 5,259 professional contacts across them, including 1,348 with verified work emails and 697 with mobile numbers. The United States is the largest market and London the largest hub.
This list covers biochar companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 7, 2026. Country and city lists for biochar companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest biochar companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 502 contacts → | ||||
Indirect evidence “Promovemos, desde 2008, a descarbonização no segmento industrial, substituindo a queima de combustíveis fósseis (óleo, gás e carvão) pela biomassa, uma fonte de energia renovável.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 2 | 163 contacts → | ||||
Indirect evidence “Monolith is an American company pioneering hydrocarbon pyrolysis, producing carbon black and hydrogen with low emissions and rebuilding the manufacturing of critical materials…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 3 | 151 contacts → | ||||
Strong evidence “NetZero's mission is to bring biochar at scale in the tropics – for climate and people, now.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 4 | 112 contacts → | ||||
Indirect evidence “Duraflame is Americas #1 selling brand of fireplace logs.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 5 | 93 contacts → | ||||
Indirect evidence “Charm Industrial is working to return the atmosphere to 280 ppm CO₂.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 6 | 75 contacts → | ||||
Indirect evidence “Carbon Products Limited is a solid fuel briquette business, pioneering blends incorporating biomass, used for both domestic and heavy industry purposes to help reduce co2…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 7 | 59 contacts → | ||||
Strong evidence “We are a leadership company in Biochar and agricultural solutions.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 8 | 56 contacts → | ||||
Indirect evidence “Cool Planet was founded in 2009 to commercialize a groundbreaking technology that produces engineered biocarbon and renewable, carbon negative fuel from biomass.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 9 | 55 contacts → | ||||
Indirect evidence “Punjab Renewable Energy Systems Pvt.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 10 | 46 contacts → | ||||
Indirect evidence “O.C.O are a global clean tech company transforming thermal residues which would otherwise go to landfill through an innovative carbon capture process which permanently stores…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 11 | 46 contacts → | ||||
Indirect evidence “Founded in 1993 in Gyé-sur-Seine (Aube, Grand Est, France), the SOLER Group is one of the leaders in renewable carbon production, offering a unique and innovative technological…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 12 | 43 contacts → | ||||
Indirect evidence “We remove atmospheric carbon for a fraction of the cost while increasing crop yields.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 13 | 40 contacts → | ||||
Indirect evidence “Nova Pangaea Technologies is a cleantech company that has created a patented technology called REFNOVA®.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 14 | 40 contacts → | ||||
Indirect evidence “Airex Energy is a world leading climate solutions provider, helping organizations in their journey towards achieving net-zero emissions.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 15 | 39 contacts → | ||||
Indirect evidence “Releaf Earth is a climate technology company pioneering novel sustainable agriculture and carbon removal solutions.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 16 | 38 contacts → | ||||
Indirect evidence “Die DHG: Inhabergeführt, bodenständig und verantwortungsvoll.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 17 | 37 contacts → | ||||
Strong evidence “PYREG is a global leader in Biochar Carbon Removal (BCR) technology, manufacturing industrial-scale systems that transform biomass and biosolids into high-value biochar and clean…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 18 | 35 contacts → | ||||
Indirect evidence “Plants draw down CO2 from the atmosphere via photosynthesis and solar power at unbeatable efficiency.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 19 | 35 contacts → | ||||
Indirect evidence “WCL Coal India Limited Manufacturer of coconut shell char coal, indonesian coal & thermal coal in Nagpur, Maharashtra.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 20 | 34 contacts → | ||||
Indirect evidence “Since 2016, our team of experts in ethical raw materials and carbon removal traceability has developed a versatile SaaS platform that collects trusted data at source, verifies…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 21 | 34 contacts → | ||||
Indirect evidence “WORLD LEADING FULL-SERVICE PROVIDER OF ACTIVATED CARBONS The CarboTech Group is one of the world's leading full-service providers of high-quality powdered, granulated and extruded…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 22 | 32 contacts → | ||||
Indirect evidence “Homefire has been warming British homes for nearly 300 years, starting with Charington’s Coal Depot in 1731.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 23 | 31 contacts → | ||||
Indirect evidence “A Norflor atua como produtora de madeira e carvão, atendendo ao mercado nacional e internacional.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 24 | 30 contacts → | ||||
Indirect evidence “CHAR Tech (TSXV:YES)(OTC PINK:CTRNF)(FSE:68K) is a Canadian clean-technology company developing first-in-kind high-temperature pyrolysis ("HTP") systems that process…” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
| 25 | 28 contacts → | ||||
Indirect evidence “Finite Carbon is North America's leading forest carbon project developer.” Source: RevenueBase Database · checked Sep 7, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: biochar companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names biochar companies.
- Partial evidence
- Its own public description names part of biochar companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name biochar companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 763 biochar companies worldwide
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Biochar companies worldwide at a glance
As of Sep 7, 2026Companies by employee count
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among biochar companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- 8 countries, largest first: the United States, India, the United Kingdom, Germany, Brazil, Canada, France, Australia. Country and city lists for biochar companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “biochar companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names biochar companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among biochar companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 1,348 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph between September 7, 2026 and September 15, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Biochar companies by location
8 lists · largest firstEvery Biochar companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Biochar companies based in the United States198
- Biochar companies based in India161
- Biochar companies based in the United Kingdom93
- Biochar companies based in Germany80
- Biochar companies based in Brazil77
- Biochar companies based in Canada55
- Biochar companies based in France53
- Biochar companies based in Australia46
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names biochar companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many biochar companies are there worldwide?
RevenueBase identified 763 biochar companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Combio Energia S.A, headquartered in Sao Paulo, tops this list with the largest team on record.
Which country has the most biochar companies?
The United States leads with 198 companies, followed by India (161) and the United Kingdom (93). Every biochar companies list by country and city is linked on this page.
Which city has the most biochar companies?
London leads with 23 headquartered companies, followed by Sao Paulo (19) and Calgary (8).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,348 verified decision-maker contacts tracked across these 763 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 7, 2026 and September 15, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.