Carbo Culture
London, NL · Founded 2017 · 34 employees on LinkedIn · 14 known investors
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Carbo Culture develops carbon removal technology leveraging natural processes combined with advanced engineering to remove carbon dioxide from the atmosphere at scale. The company operates as a project developer focused on climate mitigation solutions for global carbon removal markets.
Founders & leadership
Carbo Culture was founded in 2017 by Henrietta Moon and Chris Carstens.
Investors · 14
Also in the syndicate · 7
Company profile
researched Aug 2026Carbo Culture is a Finnish-American climate technology company that removes carbon dioxide from the atmosphere by converting woody waste biomass from agriculture and forestry into biochar, a stable, inert solid carbon material. Its reactors heat biomass at high temperature in oxygen-limited conditions in what the company describes as an "ultra-rapid conversion," locking carbon into a charcoal-like form that sources describe as resistant to degradation for 1,000 years or millennia. The process, referred to as Carbolysis, is reported to lock more carbon per unit of biochar than conventional production methods and to avoid the production of bio-oil, yielding cleaner syngas.
Beyond the solid carbon product, the conversion generates renewable heat and syngas that can be used to produce electricity and heat, or as feedstock for ammonia, methanol or fuel. The resulting biochar has applications in agriculture, where it can improve nutrient retention and water-holding capacity of soil, as well as in construction, biomaterials, environmental engineering and gasifiers. Sources place the founding of the company in 2017 or 2018; co-founders Henrietta Moon (CEO) and Christopher Carstens (CTO) met at a Singularity University three-month program at the NASA Ames Research Center in 2013.
Founding story
Co-founders Henrietta Moon (CEO) and Christopher Carstens (CTO) met during Singularity University's three-month program at the NASA Ames Research Center in 2013. The company was subsequently established, with sources citing 2017 or 2018 as the founding year, and licensed its core conversion technology from the University of Hawaii.
Business model
The company sells two principal products: carbon removal credits generated by its process and the biocarbon (biochar) material itself. Revenue is also associated with renewable energy outputs such as heat, electricity and syngas produced during conversion.
Sales of carbon dioxide removal credits, including large-scale pre-purchase agreements, and sales of biocarbon material, alongside energy co-products from the conversion process.
Traction
Commissioned R3, described as one of Europe's largest biochar plants, in Finland in August 2023, and announced plans to develop commercial-scale projects with capacity of 20 kilotons of CO2 per year. Earlier milestones included an 8x scale-up of production capacity, operation of a container-scale pilot plant in California's Central Valley processing over 200 lbs of biomass per hour, and a first large-scale pre-purchase of carbon removal credits by South Pole. Total disclosed venture funding across a 2021 seed round and a 2023 Series A is roughly $24 million.
Latest developments
The November 2023 Series A, co-led by GenZero and True Ventures with participation from Tesi, was raised to advance deployment and commercialization following the August 2023 commissioning of the R3 plant, with the company citing plans for commercial-scale projects of 20 kt CO2 per year.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Positioned in the biochar carbon removal segment of the broader CDR market; press coverage names Climeworks, Carbon Engineering, CarbFix, Charm Industrial and CarboFex as competitors. Its R3 facility was described as one of Europe's largest biochar plants at commissioning.
According to investor GenZero, the Carbolysis process locks a greater amount of carbon per unit of biochar and stores it more durably than conventional biochar production, and avoids bio-oil production, resulting in higher yields of clean syngas usable for renewable electricity and heat. The process is also energy-positive, generating renewable heat as a co-product.
Technology
Reactor-based ultra-rapid, high-temperature conversion of woody residues in oxygen-limited conditions (Carbolysis), producing biochar plus clean syngas and renewable heat while avoiding bio-oil formation. The underlying technology was licensed from the University of Hawaii, is patented per the company's investors, and the carbon removal has been independently verified by the Puro.earth marketplace. An early shipping-container-scale pilot plant in California's Central Valley processed over 200 lbs of biomass per hour, after the team scaled production capacity 8x in volume and ran testing with private labs, customers and universities.
Go-to-market
Direct sale of carbon removal credits, including pre-purchase agreements with carbon market buyers such as South Pole and a partnership with Supercritical, alongside deployment of its own biochar plants and commercial-scale projects.
Buyers of durable carbon dioxide removal credits, including corporate and carbon market intermediaries, plus users of biochar in agriculture, construction, biomaterials and environmental engineering, and offtakers of renewable heat and electricity.
Geography
Described as Finnish-American: biochar plant operations in Finland and an early pilot plant in California's Central Valley, with investors based in Singapore, the United States and Europe.
History
Founded in 2017 or 2018 (sources differ). In April 2021 the company raised a $6.2 million seed round led by True Ventures and co-led by Cherry Ventures, at which point it was operating a container-scale pilot plant in California and targeting construction of one of Europe's largest carbon removal facilities within 18 months. In August 2023 it commissioned the R3 biochar plant in Finland. In late November 2023 it announced an $18.3 million Series A co-led by GenZero and True Ventures to fund commercialization and commercial-scale project development.
Risks & controversies
Cost of removal was a stated challenge: in 2021 the company put its cost at above $600 per ton of CO2, targeting $400 by the end of 2022 and $200 by 2024, implying substantial cost reduction is required for scale.
Compiled by commissioned research from 3 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Founder mafia
2 people who came through Carbo Culture went on to found or lead other companies.
Competitors · 5
by search overlap
Companies competing with Carbo Culture for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 5
launches, deals, and filingsSeries A co-led by GenZero and True Ventures with participation from Tesi and other climate tech investors and family offices, to fund deployment and commercialization of its biochar carbon removal technology.
$18.3M source ↗
Carbo Culture commissioned R3, described as one of Europe's largest biochar plants, in Finland.
Seed financing led by True Ventures and co-led by Cherry Ventures, with Übermorgen Ventures and angel investors participating; proceeds earmarked for team growth, product development and building one of Europe's largest carbon removal facilities.
$6.2M source ↗
The company announced its first large-scale pre-purchase of carbon removal credits by South Pole.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 3
primary sources listed
- Finland's Carbo Culture Completes $18M Series A Funding Roundcarbonherald.com · web
3 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Carbo Culture do?
- Finnish-American carbon removal company converting waste biomass into durable biochar and renewable energy via its Carbolysis process.
- Who founded Carbo Culture?
- Carbo Culture was founded by Henrietta Moon, Chris Carstens in 2017.
- Who are Carbo Culture's investors?
- Carbo Culture's investors include Auxxo, Blue Ivy Ventures, Cherry Ventures, Lifeline Ventures, Wave Ventures, Starlight Ventures, True Ventures.
- Where is Carbo Culture headquartered?
- Carbo Culture is headquartered in London, NL.