Milkywire Announces 15 New Carbon Removal Purchases and 3 Grants After Extensive Selection Process

Thanks to our corporate supporters, Milkywire has financed climate solutions through its Climate Transformation Fund (CTF) since 2021 to help reach global net zero. Catalyzing the nascent carbon removal sector is a big part of the fund's mission. This new round of support brings the total of CDR suppliers supported by purchases through the CTF to 40. Only Shopify and Stripe have purchased from a higher number of CDR suppliers according to CDR.fyi data.

The organisations selected in 2025 are: Arbon, Backwater, BlueShift Carbon, Carbonsate, Flux, InPlanet, Interholco, Kairos Carbon, Karbonetiq, NeoCarbon, Norma, Planboo/Carboneers, remove, Planeteers, Releaf Earth, Silicate/Northwestern University, WasteX, ZeroEx.

>> In Other News: Phillips 66 to Supply SAF to British Airways in Calif

To do the selection we ran an open call for proposals for the third time. The interest was higher than ever, with 280 durable CDR suppliers applying. We invited a subset of applicants to submit a longer application and shared a final list with our advisory group for review before making the final selection. The list of selected applicants spans multiple CDR methods. What they all have in common is that they are high-quality removal pathways with significant potential, and that our support makes a big difference.

There is a strong need for early-stage buyers who prioritize innovation, sustainability, and co-benefits rather than just maximizing the volume of carbon removed today. Such buyers can help ensure promising ideas receive the necessary resources to validate and scale, preventing promising ventures from failing prematurely due to a lack of funding or market interest. Milkywire aims to fill precisely this role, ensuring long-term growth and knowledge-building in the carbon removal ecosystem. Read more in our strategy for catalytic CDR purchases.

We invite more companies to support these CDR suppliers with purchases. Reach out to our team if you want to learn more about how.

The Climate Transformation Fund is not only focused on CDR but also on supporting other types of solutions needed for global net zero, including emission reductions, and nature restoration & protection projects. For these project types, our 2025 selection is still ongoing.

We are committed to transparent reporting, and our annual progress report for the CTF will be published later this fall. See the 2024 Progress report which includes all supported projects up until 2024 and the progress they made.

The CTF is supported by companies like Klarna, Spotify, Bolt, Avanza, BioGaia, Mentimeter, Northzone, Planet A, Atomico and Future Energy Ventures. Many of the companies have implemented an internal carbon fee, taxing themselves to generate a budget for climate action.

See the full list of 2025 purchases and Grants below:

Kairos Carbon, UK, BECCS (novel)Kairos Carbon transforms wet organic wastes through a novel supercritical water oxidation process, converting organic matter into CO₂ suitable for geological storage.

Planeteers, Germany, BECCS/ERWPlaneteers’ engineered enhanced weathering (eEW) system captures CO₂ from flue gases and converts it into ocean-stable bicarbonates.

Interholco AG, Congo, BiocharInterholco produces biochar from sustainably sourced sawmill residues, applied to degraded lands.

Planboo / Carboneers, Ghana, BiocharPlanboo and Carboneers collaborate to produce biochar from agricultural residues with a digital MRV system.

Releaf Earth, Nigeria, BiocharReleaf transforms nut shells into biochar for soil application.

WasteX, Indonesia, BiocharWasteX builds decentralized biochar facilities with proprietary tech and MRV.

Carbonsate, Germany / Namibia, Biomass storageCarbonsate stores sun-dried biomass underground in Namibia using sealed chambers.

Arbon, USA, DACArbon proposes a humidity-swing DAC method with stable sorbents.

NeoCarbon, Germany, DACNeoCarbon integrates DAC with low-grade industrial waste heat using hollow fiber contactors.

Norma, France, DACNorma develops DAC systems using non-toxic, abundant materials and energy recovery.

BlueShift Carbon, USA, DORBlueShift captures CO₂ from seawater via membrane-free electrochemical direct ocean removal.

Karbonetiq, USA, MineralizationKarbonetiq mineralizes CO₂ by carbonating alkaline industrial byproducts.

Flux, Kenya, ERWFlux tests ERW potential of rare plutonic rock on depleted farmland.

InPlanet, Brazil, ERWInPlanet deploys ERW in citrus orchards, testing MRV and fertilizer reduction.

ZeroEx, Germany, ERWZeroEx deploys resin-based MRV systems to measure ion fluxes across Europe.

This year, we specifically called for research-focused ERW projects and introduced a new contract model to reflect scientific uncertainty, committing to a minimum verifiable volume using high-integrity MRV. Read more about the open questions on ERW.

Grant recipients:

Remove, Global, Ecosystem-BuildingRemove supports early-stage carbon removal startups globally, catalyzing innovation in underrepresented regions.

Silicate / Northwestern University, USA, ERWSilicate amends soil pH using fast-dissolving carbonate minerals and collaborates with Northwestern University to study bicarbonate export.

Backwater, UK/Canada, StorageBackwater introduces a shallow-depth geological storage method for dissolved CO₂, reducing transport and well costs.

CDR purchases happen both through the WRLD Foundation (donation-based) and Milkywire AB (non-donation funding).