Patch as Primary Carbon Sales Channel
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Brennan Spellacy, CEO of Patch, on the API layer of the carbon stack
Our suppliers will be using Patch as the primary way they’re commercializing their business.
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This only works if Patch becomes the default sales channel for carbon suppliers, not just a checkout tool for buyers. The company is building the carbon market version of Shopify plus Stripe, where project developers use Patch to manage inventory, reach many buyers through one integration, and outsource the legal and operational mess of selling credits across dozens of counterparties.
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On the supply side, Patch is not just listing projects. It is building software for commercialization and inventory management, and wrapping supplier agreements around each transaction. That gives developers more revenue and less back office work, which is why Patch can become the main route to market for them.
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The key comparison is with carbon accounting platforms like Persefoni. Those systems help a company calculate emissions and prepare disclosures, but offset procurement is a separate workflow that users expect to exist inside the same product. That makes Patch useful as embedded infrastructure rather than standalone software.
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The contrast with Stripe Climate shows the strategic opening. Stripe offers a simple way to buy from its own climate programs through the Dashboard or API, but Patch is built as a broader marketplace with project level choice, very small purchase sizes, and integration across many external tools rather than one payments stack.
If this model keeps working, Patch becomes the transaction layer that sits between registries, project developers, accounting systems, and buyer applications. The winning position is owning the workflow where carbon supply gets packaged, sold, monitored, and embedded everywhere companies already run their finance and commerce systems.