Swell

Swell Commerce Corp. (swell.is) is a headless/composable e-commerce platform based in San Francisco targeting merchants who need flexible storefront and checkout customization. The platform supports multiple payment gateways, tax automation via Avalara, and subscription management. Evidence also surfaces an i2c card-issuing partnership suggesting Swell may be expanding into next-generation financial product capabilities for merchants. The company is distinct from Swell Energy (solar/VPP) and SwellFi (MCA lender), which appeared in search results but are unrelated entities.