Reduciner
Reduciner is a Finnish climate-tech startup that converts captured industrial CO2 into carbon monoxide and activated carbon via a patented electrically-driven thermochemical process, serving hard-to-abate lime, cement, steel, and pulp producers through enterprise sales and licensing.
- Company typePrivate
- Founded2025
- HeadquartersHelsinki, Finland
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What Reduciner does
Reduciner Oy is a Finnish climate-tech startup founded in 2026 as a spin-out from VTT Technical Research Centre of Finland, headquartered in Espoo with a planned 1MW industrial pilot facility in Ranua. The company commercializes a patented, electrically-assisted thermochemical process based on the Reverse Boudouard reaction (CO2 + C → 2CO) that converts captured industrial carbon dioxide and biogenic carbon into carbon monoxide and activated carbon using renewable electricity, reporting greater than 90% CO2-to-CO conversion efficiency. The activated carbon co-product is characterized by BET surface area above 1000 m2/g and is sold into water/gas purification and energy storage applications.
The company targets hard-to-abate heavy industries whose CO2 emissions are unavoidable by-products of core chemical processes — specifically lime, cement, steel, and pulp producers — as well as chemical/Power-to-X customers that use CO as a feedstock for synthetic fuels, methanol, and e-fuels. The company's value proposition rests on indirect electrification: producing a combustible CO gas that drops into existing burners, kilns, and furnaces, avoiding the infrastructure replacement cost of hydrogen-based or fully electrified process redesigns. Independent sources cite 20-30% CAPEX/OPEX reductions for synthetic fuel production when using CO rather than CO2 as a Power-to-X feedstock, and 50-100% less hydrogen waste versus CO2-based routes.
Reduciner's business model combines three revenue streams: sale of CO-rich synthesis gas as industrial fuel or chemical feedstock, sale of high-value activated carbon as a co-product, and technology licensing of the patented process to industrial facilities globally. Pricing is not publicly disclosed and is expected to be negotiated enterprise-by-enterprise. The company is pre-revenue; commercialization is anchored by the Ranua pilot facility, developed in partnership with Pohjois-Suomen Biokaasu Oy to utilize biogenic CO2 from a Finnish biogas plant. As of mid-2026, the three-person co-founding team (CEO Johanna Grönroos, CTO Eemeli Tsupari, COO Sampsa Vuori) had raised EUR 3.6 million in seed funding from Voima Ventures, Lifeline Ventures, and the Mikko Kodisoja Foundation, with VTT contributing the underlying technology and IP rights as an in-kind investment.
Reduciner firmographics
Firmographics- Name
- Reduciner
- Legal name
- Reduciner Oy
- Website
- https://www.reduciner.com
- Company type
- Private
- Founded year
- 2025
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Reduciner is a Finnish climate-tech startup that converts captured industrial CO2 into carbon monoxide and activated carbon via a patented electrically-driven thermochemical process, serving hard-to-abate lime, cement, steel, and pulp producers through enterprise sales and licensing.
- Ownership category
- akta.pro rank
Reduciner industry classification
Industry- Product category
- Industrial CO2 Conversion Technology
- NAICS
- Industrial Gas Manufacturing (32512), Chemical Manufacturing (325)
- SIC
- Chemicals & Allied Products (2800), Industrial Inorganic Chemicals (2810)
- akta.pro primary industry
- Thermochemical CO₂ Conversion Systems (RWGS, Fischer‑Tropsch integration, catalytic hydrogenation) (EUABAIAL)
- akta.pro secondary industries
- Industrial Carbon Capture Integration & Retrofit Engineering (Capture-Ready, Balance-of-Plant) (EUABAJAJ), E‑Fuels & Synthetic Hydrocarbons (e‑kerosene, e‑diesel, e‑gasoline, e‑methane) (EUABAIAA)
Keywords
Where Reduciner is headquartered
LocationHeadquarters
- HQ city
- Helsinki
- HQ country
- Finland
- HQ region
- Europe
Offices2 records
Markets served
Reduciner business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales, Supply Chain
Revenue model
- Carbon Monoxide (CO) Sales: Revenue from selling CO-rich synthesis gas produced from captured industrial CO2. CO can be used directly as low-cost industrial fuel, as feedstock for synthetic fuels (diesel, aviation fuels, methanol), or as reducing agent in steel production.
- Activated Carbon Co-product: Revenue from selling high-value activated carbon produced as a co-product. Activated carbon (BET >1000 m2/g) is sold for water/gas purification, energy storage (supercapacitors), air purification, and pharmaceutical applications.
- Technology Licensing: Revenue from licensing Reduciner's patented CO2 conversion technology to industrial facilities. The company offers deployment of its technology at scale through licensing agreements, enabling broader market penetration without directly building all facilities.
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
Reduciner product offering
Product offeringCore offering
Reduciner commercializes a patented, electrically-assisted thermochemical process (Reverse Boudouard reaction) that converts captured industrial CO2 into carbon monoxide (CO-rich syngas) and high-value activated carbon using renewable electricity and biogenic carbon. The dual-output process achieves over 90% CO2-to-CO conversion efficiency and is designed to integrate with existing industrial infrastructure in hard-to-abate sectors such as lime, cement, steel, pulp, and chemicals.
Product overview
Reduciner offers a core proprietary technology platform that converts captured industrial CO₂ into two valuable products: carbon monoxide (CO-rich synthesis gas) and activated carbon. The thermochemical process uses renewable electricity and biogenic carbon via the Reverse Boudouard reaction, achieving over 90% CO₂-to-CO conversion efficiency. CO-rich syngas serves as a low-cost fuel, Power-to-X feedstock for synthetic fuels, and industrial reducing agent, while activated carbon is sold as a premium co-product for water/gas purification applications. The technology targets hard-to-abate industries (lime, cement, steel, pulp) and enables circular carbon use without major infrastructure changes.
Differentiator
Problem solved
Functional benefit
Products and services
- CO-rich Synthesis Gas (Carbon Monoxide) Carbon monoxide produced through Reduciner's proprietary thermochemical process that converts captured CO2 into CO using renewable electricity and biogenic carbon. The CO-rich syngas serves as industrial fuel, feedstock for synthetic fuels (diesel, methanol, e-fuels), reducing agent for steel production, and key input for the chemical industry.
- Activated Carbon High-value biogenic activated carbon produced as a co-product during the CO2 conversion process, featuring BET surface area >1000 m²/g. Used in water and gas purification, energy storage (supercapacitors), air purification, and pharmaceutical applications.
- CO2 Conversion Technology Licensing Licensing of Reduciner's patented electrically-assisted thermochemical CO2-to-CO conversion technology to industrial facilities globally, enabling broader market penetration in hard-to-abate industries.
Quantifiable outcome
- Over 90% CO2-to-CO conversion efficiency
- +4 more outcomes
Companies that use Reduciner
Customer profileNamed customers5 records
Segments5 records
Ideal customer profiles4 records
Reduciner technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Reduciner partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- Pohjois-Suomen Biokaasu OycorePartnership to utilize biogenic CO2 from Pohjois-Suomen Biokaasu Oy's biogas plant for Reduciner's 1MW pilot facility in Ranua. The partnership enables annual CO2 emission reductions of more than 1,000 tonnes and creates a new utilization pathway for CO2 from biogas production. Pohjois-Suomen Biokaasu is owned by 21 farms in Ranua, Pudasjärvi, and Simo.
- VTT Technical Research Centre of FinlandcoreReduciner was spun out of VTT. VTT transferred technology and IP rights as an in-kind investment to the new company. The technology is based on several years of research at VTT and has been validated through pilot-scale testing. VTT's Decarbonate project contributed to technology development. VTT continues to support the company as it commercializes.
Scale indicators6 records
Recent moves7 records
Expansion highlights6 records
Reduciner competitors and assessment
Company assessmentDirect peers
- HIF Global: HIF Global produces e-fuels (e-methanol, e-gasoline, e-jet) from green hydrogen and captured CO2. It targets the same synthetic fuel applications as Reduciner's CO-rich syngas downstream of Reduciner's process.
- Sunfire: Sunfire produces synthetic fuels and syngas via high-temperature co-electrolysis (Power-to-X). It competes in the same e-fuels/syngas end-markets as Reduciner, with a different but adjacent (also electricity-driven, also high-temperature) production route.
- Infinium: Infinium produces e-fuels (e-diesel, e-jet, e-naphtha) from captured CO2 and green hydrogen. It is a direct downstream peer to Reduciner in the Power-to-X value chain, where Reduciner's CO could in principle displace Infinium's CO2+H2 feedstock approach.
- Twelve: Twelve converts captured CO2 into chemicals and fuels via an electrochemical process. Like Reduciner, it produces carbon-based products from industrial CO2 streams for hard-to-abate sectors, but via electrochemistry rather than thermochemistry.
- LanzaTech: LanzaTech uses gas fermentation to convert CO/CO2-rich syngas into ethanol and chemical building blocks. It targets the same downstream customer use cases (synthetic fuels, industrial chemicals) as Reduciner via a different biological pathway rather than Reduciner's thermochemical Reverse Boudouard route.
- Air Company: Air Company converts captured CO2 into sustainable aviation fuel, consumer products and fragrances. It competes in the CO2-to-products space that Reduciner addresses, though with a focus on direct CO2 hydrogenation rather than CO intermediate production.
Broad incumbents
- CarbonCapture Inc. CarbonCapture Inc. develops direct air capture systems and partnerships for permanent CO2 sequestration. It sits upstream in the carbon value chain — providing captured CO2 — while Reduciner sits midstream (utilization), making it a complementary rather than directly competing incumbent.
- Climeworks: Climeworks is the leading direct air capture company, removing CO2 from the atmosphere via sorbent-based systems. It is a broad incumbent in the carbon capture space that overlaps with Reduciner's end-customers' decarbonization strategies but does not directly compete in CO2 utilization.
- Heirloom Carbon: Heirloom uses limestone-based direct air capture to permanently sequester CO2. Like CarbonCapture Inc. and Climeworks, it is a broad incumbent in carbon capture rather than utilization, addressing the same industrial customers' net-zero strategies from a different angle.
Emerging players
- Charm Industrial: Charm Industrial converts biomass into bio-oil that is then injected underground for permanent CO2 removal. It is an emerging player in the carbon-to-value space, with overlapping industrial decarbonization customers but a fundamentally different conversion pathway.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks7 records
Key highlights7 records
Customer concentration
Reduciner social profiles
Digital presenceReduciner financial estimates
Financial estimateRevenue estimate
Valuation estimate
Reduciner leadership team
Management profileNumber of profiles
Profiles3 records
Reduciner funding detail
Funding detailFunding overview
Funding rounds2 records
Investors4 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Reduciner M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Reduciner
What does Reduciner do?
Reduciner commercializes a patented, electrically-assisted thermochemical process (Reverse Boudouard reaction) that converts captured industrial CO2 into carbon monoxide (CO-rich syngas) and high-value activated carbon using renewable electricity and biogenic carbon. The dual-output process achieves over 90% CO2-to-CO conversion efficiency and is designed to integrate with existing industrial infrastructure in hard-to-abate sectors such as lime, cement, steel, pulp, and chemicals.
Is Reduciner a public or private company?
Reduciner is a private company. It is classified as venture growth investor backed and is currently operating.
When was Reduciner founded?
Reduciner was founded in 2025. It employs 1 to 10 people.
Where is Reduciner based?
Reduciner is headquartered in Helsinki, Finland, in the Europe region.
How does Reduciner make money?
Three revenue lines are on record. Carbon Monoxide (CO) Sales are the primary driver. The others are activated Carbon Co-product and technology Licensing.
Who are Reduciner's main competitors?
Direct peers on record are HIF Global, Sunfire, Infinium, Twelve, LanzaTech and Air Company. Broad incumbents are CarbonCapture Inc., Climeworks and Heirloom Carbon. Charm Industrial is listed as an emerging player.
Does Reduciner have an API?
No public API is recorded for Reduciner.
What industry is Reduciner in?
Reduciner's product category is Industrial CO2 Conversion Technology. Its primary akta.pro industry code is EUABAIAL, Thermochemical CO₂ Conversion Systems (RWGS, Fischer‑Tropsch integration, catalytic hydrogenation), with a secondary code of EUABAJAJ, Industrial Carbon Capture Integration & Retrofit Engineering (Capture-Ready, Balance-of-Plant). Its NAICS code is 32512 and its SIC code is 2800.