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Carbon One

Energy · Berlin, Germany · Founded 2022

Proprietary homogeneous catalysis for efficient green methanol production MoreLess

C1 Green Chemicals AG, operating as Carbon One, is a Berlin-based cleantech company founded in early 2022 by serial entrepreneur Christian Vollmann and chemist Dr. Marek Chęciński. The company is focused on decarbonizing hard-to-abate industries like shipping, aviation, and chemicals by reinventing the production of green methanol.

The company's core technology is a disruptive homogeneous catalysis process for methanol synthesis, an invention of Dr. Chęciński that originated from quantum-chemical simulations in 2018. This new method marks a significant departure from the century-old, energy-intensive heterogeneous catalysis traditionally used in methanol production. C1's process operates at significantly lower pressures and temperatures, cutting them in half compared to conventional methods. This results in a more efficient, selective, and scalable process that dramatically reduces energy consumption and production costs. The technology achieves a high single-pass CO conversion of 95% with 95% selectivity, demonstrating an efficiency about five times higher than traditional methods.

C1's business model centers on developing and commercializing its proprietary catalysis technology. The company aims to lower the "green premium" on non-fossil methanol, making it a price-competitive alternative to fossil-based methanol. By enabling decentralized, smaller-scale production, the technology can be deployed wherever CO2 waste streams and renewable energy are available. The company is targeting a market for green methanol that is projected to reach approximately €183 billion annually by 2050. C1 plans to build the world's first demonstration plant for its technology.

Dr. Marek Chęciński, the CTO, is the inventor of the C1 technology and has a background in chemistry and catalysis research, founding CreativeQuantum GmbH, a leading service provider in quantum mechanical simulations. CEO Christian Vollmann is a passionate entrepreneur who has successfully built and exited several companies. The leadership team also includes Dr. Mathias Mostertz as COO, who brings two decades of experience in the engineering and cleantech sectors. Since its founding, C1 has raised a total of $21.4M in funding over four rounds, with investors including Planet A Ventures, Maersk Growth, and denkapparat. The company has established a pilot plant, "Leuna100," in Leuna, Germany, a location with historical significance as the site of the first commercial methanol plant in 1923.

Keywords: green methanol, homogeneous catalysis, circular carbon economy, chemical production, decarbonization, cleantech, quantum chemistry, syngas, fossil-free fuel, sustainable shipping, renewable raw materials, CO2 reduction, catalyst technology, decentralized production, e-methanol, low-pressure synthesis, low-temperature synthesis, net-zero shipping, chemical industry defossilization, C1 reactor

Company overview

Carbon One company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2022
Headquarters
Berlin, Germany
Employees
38
Open positions
None listed
Dealroom signal
67.8
client focusb2btechnologyHardwaretechnologyDeep Techbusiness modelManufacturingsectorSustainable Development GoalssectorCarbon Capture and StoragesectorMaritimesectorBiodiversitysectorClimate TechsectorCircular EconomysectorBlue EconomysectorMarine TransportationsectorCarbon UtilisationsectorZero Emission Fuel

Valuation & funding

Carbon One funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
GRANTOther financing Mar 2025 $5.5M Undisclosed
EARLY VCEquity / VC Mar 2025 $17M $66M Maersk Growth · Planet A Ventures · SquareOne · Jim Hagemann Snabe
EARLY VCEquity / VC Oct 2024 $0 Maersk Growth · Planet A Ventures · Visioning · denkapparat
EARLY VCEquity / VC Jan 2023 $3.3M $13M Planet A Ventures · SquareOne
CONVERTIBLEEquity / VC Jan 2023 $5.5M Maersk Growth
SUPPORT PROGRAMOther financing Nov 2022 Undisclosed
EARLY VCEquity / VC Apr 2022 SquareOne · Planet A Ventures
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Financials

Revenue, earnings and profit over time

Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.

YearProfitMargin
2026 −$1.3M
2025 −$1.3M
2024 −$1.3M
2023
2022
Company filings, research estimates and Dealroom dataOpen the full financial model →

Growth signals

Carbon One website traffic

Latest recorded traffic for Carbon One is 3.1K monthly website visits, down 26.2% over the last three months. Carbon One's team declined 9.5% over the past year.

Latest monthly visits3.1K 3-month web change-26.2% 1-year team growth-9.5%
Monthly website visits44 observations · Dec 2022–Jul 2026
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Hiring

Open positions at Carbon One

Current openings linked to this company in Dealroom.

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Comparisons

Carbon One compared with similar companies

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Showing 8 of the closest matchesCompare every metric →

Talent graph

Carbon One's talent

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Team profiled 8 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 7 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

13 investors on Carbon One's cap table

Sourced from Dealroom's funding and investor records.

Series A 11 investors entered at this stage
SquareOne
Planet A Ventures
Maersk Growth
Visioning
denkapparat
whiletrue Limited
Blue Impact Ventures
BJHS Invest
Cooperativa Capital SeedPocket I
Jim Hagemann Snabe
Wolfgang Reitzle
Other known 2 additional known investors
Arvantis Group
Falling Walls Foundation

Global footprint

Where Carbon One has talent and traffic

Workforce by country
5 countries with
team presence
🇩🇪 Germany83.9%
🇳🇱 Netherlands6.5%
🇺🇸 United States3.2%
🇩🇰 Denmark3.2%
🇬🇧 United Kingdom3.2%
5 countries shown

In the news

Latest news about Carbon One

Recent press, funding announcements, and product moves mentioning Carbon One — open to read from the original sources.

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Market sentiment

What the market is saying about Carbon One

An AI-synthesized read of the highest-engagement posts about Carbon One on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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