List for Free. Reach More Buyers.
Carbonmark offers zero-cost onboarding and access to a growing global network of climate-conscious buyers.
List Once. Sell Globally.
Carbonmark offers open market access for verified carbon credits.
Start selling your carbon credits directly to buyers: list your projects and create your storefront to generate new demand.
- retired on behalf of our clients
- 1,000,000+ tCO2
- carbon projects listed
- 150+
- continents where we operate
- 6
Sell Faster. Sell Smarter. Sell More with Carbonmark.
Own Your Credits. Set Your Price.
Reach buyers without restrictions or exclusivity requirements.
One Platform. Multiple Channels.
List once and sell across our public marketplace, enterprise API integrations, and in-house sales outreach.
Sell with Confidence. Get Paid Instantly.
Carbonmark ensures traceability, instant settlement, and full transparency for every transaction.
Registry Integrations
Carbonmark is connected to leading carbon registries, including Puro.Earth, EcoRegistry, ICR, and more. Users can easily transfer credits from their host registry to their Carbonmark account for listing on our platform.
Direct Credit Issuance
Issue your credits faster through Carbonmark Direct. We invite project developers of innovative carbon removal technologies to issue and market their credits through our public, blockchain-enabled platform.
With Carbonmark Direct You Can:
- Issue credits through our secure, traceable, and transparent blockchain-based infrastructure.
- Manage your credit inventory, execute retirements on behalf of buyers, and transfer credits to third parties.
- List and sell carbon credits on our public marketplace or offer them via our API to our client network.
The entire process takes up to 3 weeks from submitting your application and project documentation.
Where Climate Action Gets Funded
Carbonmark is the fastest way to bring your carbon credits to market.
We offer project developers and credit suppliers a frictionless, transparent platform to list, manage, and sell credits—without intermediaries or upfront fees. With free onboarding, instant access to a global buyer base, and support from our in-house sales team, you stay in control of your credits and pricing while tapping into new demand channels.
Our Partners and Network
Key facts
- Carbonmark offers open market access for verified carbon credits: sellers list projects and create a storefront to sell directly to buyers globally.
- Listing is free — Carbonmark provides zero-cost onboarding with no exclusivity requirements, and sellers own their credits and set their own price.
- One listing sells across multiple channels: Carbonmark's public marketplace (app.carbonmark.com), enterprise API integrations, and in-house sales outreach.
- Track record: 1,000,000+ tCO2 retired on behalf of clients, 150+ carbon projects listed, and operations across 6 continents.
- Every transaction has traceability, instant settlement, and full transparency — sellers get paid instantly.
- Carbonmark is connected to leading carbon registries, including Puro.Earth, EcoRegistry and ICR; sellers can transfer credits from their host registry to their Carbonmark account for listing.
- Carbonmark Direct lets project developers of innovative carbon removal technologies issue credits on Carbonmark's public, blockchain-enabled platform; the entire process takes up to 3 weeks from submitting the application and project documentation (carbonmark.com/carbonmark-direct).