Brex Builds In-House Issuing Processor
Fintech investor on how banking-as-a-service platforms build partnerships
Brex building its own issuing processor is really a move to own the profit pool and the product roadmap at the same time. The processor is the system that sits between the sponsor bank and the card network, deciding approvals, routing authorizations, clearing transactions, and handling fraud logic. If Brex owns that layer, it can remove third party processor fees, tune risk models for its own customers, and ship country by country card features without waiting on a vendor like Stripe Issuing, Lithic, or Galileo.
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In card economics, the lower layers get squeezed as volume scales. Prior work on BaaS economics shows bank and program manager take rates compress over time, while the fintech with the customer relationship captures more of interchange. Building in house is how Brex keeps more of that spread instead of sharing it with an outside processor.
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The product reason matters as much as cost. Brex says it is directly integrated with Mastercard and has already enabled local issuing and billing across 120 countries, with over 50 currencies. That lets it solve concrete enterprise problems like local card acceptance, lower FX friction, and cleaner travel and procurement reconciliation inside partners like Navan and Coupa.
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This is also where Brex diverges from Ramp. Ramp is described as using Stripe Issuing, while Brex argues that no middleware lets it move faster for global enterprise use cases. That difference fits the broader split in the market between all in one software stacks and deeper infrastructure ownership for customers with more complex card, fraud, and cross border needs.
The next step is that more spend platforms will look less like software resellers of card infrastructure and more like miniature card networks with software on top. The companies that win enterprise card and embedded payment flows will be the ones that own issuing, risk, and global acceptance deeply enough to plug straight into travel, procurement, and ERP workflows, not just offer a prettier expense app.