ZeroEx
ZeroEx GmbH is a Munich-based climate technology company that sells permanently stored Enhanced Rock Weathering carbon credits, deployed on agricultural fields via basalt rock powder and proprietary Self-Integrating Accumulator MRV, to corporate residual-emissions buyers globally.
- Company typePrivate
- Founded2022
- HeadquartersMunich, Germany
- Headcount11–50
- GTM typeB2B
- OfferingServices
What ZeroEx does
ZeroEx GmbH is a Munich-based climate technology company founded in 2022 by Tony Oehm and Hannes Steinle that delivers permanent carbon dioxide removal through Enhanced Rock Weathering (ERW). The company spreads basalt rock powder and industrial byproducts such as ferronickel slag on agricultural fields, accelerating natural silicate weathering so that CO2 is stored as stable bicarbonate in ocean reservoirs for thousands of years. Its proprietary Self-Integrating Accumulator (SIA) ion-exchange resin devices provide time-integrated measurements of dissolved weathering products, enabling what ZeroEx describes as a more precise and cost-effective MRV backbone than conventional soil-based monitoring. As of the available data, more than 2,000 SIAs are installed across projects in Germany, Brazil, the United States, Ukraine, and the UK.
The company's business model is the sole-seller issuance of verified Enhanced Weathering carbon credits to enterprise buyers, delivered via the Isometric Registry on multi-year (approximately 10-year) project timelines. ZeroEx runs a sales-led GTM targeting corporate residual-emissions buyers, anchored by flagship partnerships with Anglo American (Project Earthstone in Central Brazil, with potential to sequester 15 million tonnes of CO2) and Bain & Company for DACH-region market development. Distribution includes direct enterprise sales through [email protected], a dedicated farmer onboarding channel ([email protected]), and co-development arrangements with other ERW developers such as InPlanet and Mombak. Its German project was verified by Isometric as Europe's first and worldwide second verified ERW project, with first credits expected in 2026.
ZeroEx is a privately held German GmbH with a team of 15-20 researchers, field scientists, operations staff, and executives, advised by a board that includes former Allianz Commercial CEO Joachim Müller (until 2023), Combine Consulting CEO Oliver Dittmar, and Bachmann Group CEO Peter Bachmann, plus scientific advisors from TerrAquat. The company actively participates in the Enhanced Weathering Alliance convened by the Carbon Business Council and engages in policy forums such as COP30 Brazil to influence CDR market structure. Reported co-benefits for participating farmers include maize and soy yield increases of 12-16% in ERW-treated plots.
ZeroEx firmographics
Firmographics- Name
- ZeroEx
- Legal name
- ZeroEx GmbH
- Website
- https://zeroex.com
- Company type
- Private
- Founded year
- 2022
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- ZeroEx GmbH is a Munich-based climate technology company that sells permanently stored Enhanced Rock Weathering carbon credits, deployed on agricultural fields via basalt rock powder and proprietary Self-Integrating Accumulator MRV, to corporate residual-emissions buyers globally.
- Ownership category
- akta.pro rank
ZeroEx industry classification
Industry- Product category
- Carbon Dioxide Removal Services
- akta.pro primary industry
- Carbon Removal Project Development, Financing & Offtake (Developers, Aggregators, Buyers Clubs) (EUABAFAL)
- akta.pro secondary industries
- Enhanced Weathering (Rock Milling, Distribution & Field Ops) (EUABAFAE), Enhanced Weathering & Mineralization Projects (Ex-situ/In-situ) (EUABABAK), Carbon Removal Credits Trading (DAC, BECCS, Biochar, Mineralization) (EUAGAIAL), Offsets & Carbon Removal Procurement Strategy (portfolio design, quality screening) (EUABAKAL)
Keywords
Where ZeroEx is headquartered
LocationHeadquarters
- HQ city
- Munich
- HQ country
- Germany
- HQ region
- Europe
Offices2 records
Markets served
ZeroEx business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Supply Chain, Marketing or Sales
Revenue model
- Carbon Removal Credit Sales: ZeroEx sells permanent carbon removal credits (Enhanced Weathering credits) to corporate buyers. Credits represent CO2 removal achieved through ERW deployment over a 10-year project timeline. The company is the sole seller of its ERW carbon credits, preventing double counting. Credits are issued via the Isometric Registry upon delivery.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Transaction based/ take rate | Multi-year contract | Custom carbon removal credit packages based on buyer requirements |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
ZeroEx product offering
Product offeringCore offering
ZeroEx deploys Enhanced Rock Weathering (ERW) projects by sourcing quarry byproduct basalt rock powder and spreading it on agricultural fields to accelerate natural geological weathering, permanently storing CO2 as bicarbonate in the ocean for thousands of years. The company sells verified Enhanced Weathering carbon removal credits to corporate buyers via the Isometric Registry, and backs those credits with its proprietary Self-Integrating Accumulator (SIA) measurement, reporting, and verification (MRV) technology. It also provides end-to-end ERW project development including rock selection, SIA device installation, GPS-tracked precision spreading, and ongoing soil, water, and SIA monitoring.
Product overview
ZeroEx is a climate technology company offering Enhanced Rock Weathering (ERW) as a permanent carbon removal solution. The core offering consists of ERW Carbon Removal Credits, backed by ZeroEx's proprietary Self-Integrating Accumulator (SIA) measurement technology and end-to-end ERW Project Development Services. ZeroEx combines innovative MRV technology with careful project planning to create financially viable ERW projects that scale globally. The company holds Europe's 1st and 2nd worldwide verified ERW projects, verified by Isometric. Projects span Germany, Brazil, Ukraine, and the United States through partnerships with companies such as Anglo American, InPlanet, and Mombak.
Differentiator
Problem solved
Functional benefit
Products and services
- ERW Carbon Removal Credits Carbon removal credits generated through Enhanced Rock Weathering projects, where basalt rock powder is spread on agricultural fields to permanently sequester CO2 over a 10-year project timeline. Credits are issued and tracked via the Isometric Registry and purchased by enterprise buyers and consumer purchasers.
- Self-Integrating Accumulator (SIA) MRV Technology Proprietary ion exchange resin-based measurement devices (SIAs) deployed to provide time-integrated measurements of dissolved weathering products exported with soil leachate. SIA-based water monitoring offers higher accuracy at lower cost than conventional soil-based MRV methods.
- ERW Project Development Services Full-stack ERW project execution covering sourcing of unused quarry byproduct rock powder near farms, optimization for maximum sequestration, SIA device installation, GPS-tracked precision rock powder spreading, and continuous removal monitoring in soil, water, and SIAs.
Quantifiable outcome
- Maize and soy yield increases of 12-16% from ERW deployment
- +4 more outcomes
Companies that use ZeroEx
Customer profileNamed customers2 records
Segments1 record
Ideal customer profiles2 records
ZeroEx technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
ZeroEx partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered flagship, core and minor.
- Anglo AmericanflagshipAnglo American partnered with ZeroEx and Isometric to implement Enhanced Rock Weathering (ERW) technology through Project Earthstone, using magnesium-rich ferronickel slag — a byproduct from Anglo American's smelting operations in Brazil — as feedstock for carbon removal. ZeroEx deploys its SIA measurement technology to reduce ERW measurement costs. Isometric issues verified Enhanced Weathering carbon credits. Project Earthstone has potential to sequester 15 million tonnes of CO2 on fields in Central Brazil.
- IsometriccoreIsometric partners with Anglo American and ZeroEx to issue trusted Enhanced Weathering carbon credits. Isometric also verified ZeroEx's German ERW project (Europe's first, worldwide second verified ERW project). Credits for Germany expected in 2026. Isometric Registry is used as the platform for credit delivery and tracking.
- Bain & CompanycoreBain & Company purchased Enhanced Weathering (EW) credits from ZeroEx and collaborates with ZeroEx to promote market integrity in the DACH region and beyond. The partnership serves both as a customer relationship and a go-to-market channel for market development.
- InPlanetminorCollaboration with ERW developer InPlanet in Piracicaba, Brazil to test SIAs for future use in their projects. Part of ZeroEx's global deployment network expanding ERW measurement technology.
- MombakminorCollaboration with project developer Mombak in Mogi Guaçu, Brazil to pilot the use of ERW and SIAs as an extension of their reforestation business.
- Yale UniversityminorCollaboration with Yale University in Virginia, US to test the performance of SIAs against several other MRV methods, providing scientific validation of ZeroEx's measurement technology.
- Cascade Climate & Carleton CollegeminorField trial in Minnesota, US conducted by Cascade Climate & Carleton College to test the performance of SIAs in comparison to conventional MRV methods.
- Basic Dust & Prof. Christiana DietzenminorComparison of SIAs to alkalinity sensors in a field trial in Washington, US, funded by the Cascade Climate ERW Field Data Partnership Grant.
- NovonesisminorMesocosm experiment in collaboration with Novonesis in the UK to test whether carbonic anhydrase (CA) enzyme can speed up dissolution of ERW feedstock.
- Enhanced Weathering (EW) AlliancecoreCoalition convened by the Carbon Business Council including leading companies and organizations in Enhanced Weathering. ZeroEx is a member. The alliance aims to advance policy, create credible markets, and educate stakeholders on EW's benefits as a carbon dioxide removal method. Coalition efforts ramping up to scale carbon removal.
Scale indicators4 records
Recent moves6 records
Expansion highlights8 records
ZeroEx competitors and assessment
Company assessmentBroad incumbents
- Climeworks: Switzerland-based Direct Air Capture pioneer and the largest DAC CDR supplier globally. Comparable as a high-permanence, corporate-buyer-focused CDR seller, but operates a fundamentally different (DAC vs. ERW) technology pathway.
- Charm Industrial: US-based carbon removal company using biomass-to-biochar sequestration. Comparable as a permanent CDR supplier serving the same enterprise voluntary market with a different technology pathway.
- CarbonCapture Inc. US-based Direct Air Capture developer commercializing mega-scale DAC facilities. Comparable as a competing permanent CDR supplier targeting the same corporate buyer segment with a different (DAC) technology pathway.
- Heirloom Carbon: US-based DAC company using limestone-based enhanced mineralization. Comparable as a competing permanent CDR pathway (mineralization-adjacent) targeting enterprise buyers seeking high-permanence removals.
Others
- Isometric: Carbon credit registry and verification platform that issues and tracks ZeroEx's ERW credits. Enabling infrastructure partner rather than a competitor; serves as the trust layer for the CDR category.
- Carbon Business Council: Industry coalition convening CDR companies including the Enhanced Weathering Alliance. Comparable as an ecosystem/shaping organization, not a competitor; ZeroEx is a participating member.
Direct peers
- InPlanet: Brazil- and Germany-focused Enhanced Rock Weathering developer selling carbon removal credits. Direct competitor in the same CDR pathway; ZeroEx actively collaborates with InPlanet on SIA testing, but both compete for the same corporate ERW credit buyers.
- Mombak: Brazil-based nature-based carbon removal developer expanding into Enhanced Weathering alongside its reforestation business. Direct ERW competitor in Brazil and a SIA collaboration partner of ZeroEx; both sell into the same voluntary CDR market.
- Project Vesta: US-based Enhanced Weathering CDR developer focused on coastal olivine deployment. Direct peer offering competing ERW credits with similar permanence claims to corporate buyers.
- Eion: US-based Enhanced Rock Weathering carbon removal startup selling verified CDR credits to corporate buyers. Direct competitor in the same methodology with overlapping corporate buyer targets.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
ZeroEx social profiles
Digital presenceZeroEx financial estimates
Financial estimateRevenue estimate
Valuation estimate
ZeroEx leadership team
Management profileNumber of profiles
Profiles10 records
ZeroEx funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ZeroEx 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 ZeroEx
What does ZeroEx do?
ZeroEx deploys Enhanced Rock Weathering (ERW) projects by sourcing quarry byproduct basalt rock powder and spreading it on agricultural fields to accelerate natural geological weathering, permanently storing CO2 as bicarbonate in the ocean for thousands of years. The company sells verified Enhanced Weathering carbon removal credits to corporate buyers via the Isometric Registry, and backs those credits with its proprietary Self-Integrating Accumulator (SIA) measurement, reporting, and verification (MRV) technology. It also provides end-to-end ERW project development including rock selection, SIA device installation, GPS-tracked precision spreading, and ongoing soil, water, and SIA monitoring.
Is ZeroEx a public or private company?
ZeroEx is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was ZeroEx founded?
ZeroEx was founded in 2022. It employs 11 to 50 people.
Where is ZeroEx based?
ZeroEx is headquartered in Munich, Germany, in the Europe region.
How does ZeroEx make money?
One revenue line is on record: carbon Removal Credit Sales.
Who are ZeroEx's main competitors?
Broad incumbents on record are Climeworks, Charm Industrial, CarbonCapture Inc. and Heirloom Carbon. Others are Isometric and Carbon Business Council. Direct peers are InPlanet, Mombak, Project Vesta and Eion.
Does ZeroEx have an API?
No public API is recorded for ZeroEx.
What industry is ZeroEx in?
ZeroEx's product category is Carbon Dioxide Removal Services. Its primary akta.pro industry code is EUABAFAL, Carbon Removal Project Development, Financing & Offtake (Developers, Aggregators, Buyers Clubs), with a secondary code of EUABAFAE, Enhanced Weathering (Rock Milling, Distribution & Field Ops).